Pitched Dormer Loft Conversion for London Homes

Unlock Space and Value with a Dormer Pitched Roof Conversion

Achieve more space, add value, and future-proof your London property with a pitched dormer loft conversion. We help London homeowners maximise floor area, enhance natural light, and create functional spaces through expertly crafted dormer with pitched roof solutions. Our team brings 20 years’ specialised experience, a fixed-price promise, and full in-house management, ensuring your project is simple from the initial survey to handover, all backed by a 10-year warranty and £10 million insurance coverage.

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We help growing families, remote professionals, investors, and first-time renovators across South London turn unused roof space into bedrooms, home offices, studios, and rental units, with fully managed loft conversions from design and planning to final snagging. Every project is run by our own team, with independent weekly inspections and after-build care so you always know exactly where you stand.

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Why Choose a Pitched Dormer?

A dormer pitched roof conversion balances aesthetic appeal with functional living space. Unlike flat-roofed dormers, a pitched dormer enhances your home’s kerb appeal while increasing headroom and daylight. It’s ideally suited for period homes across Balham, Bromley, Battersea, Streatham, and surrounding South London boroughs where planning rules often favour sympathetic roof profiles.

Visual Continuity and Light

Integrating seamlessly with your existing roof, dormer roof pitch designs maintain the character of Victorian and Edwardian terraces. Modern materials – such as triple-glazed windows, heritage slates, and sheep’s wool insulation – create energy-efficient, comfortable rooms. According to the Office for National Statistics, over 60% of loft conversions in London now opt for pitched dormers to comply with long-term sustainability requirements as of 2024.

Transparent Pricing and Reliable Delivery

One of the most common frustrations among homeowners is uncertainty about costs and timeframes. We address both from day one. Every pitched dormer project begins with a detailed, fixed quotation – there are no hidden fees, and all services (design, planning, build) are included. Our average build spans 8–10 weeks, with larger structures or ensuite bathrooms sometimes requiring additional time. Scaffolding, structural certification, and all required paperwork are handled for you.

Key Takeaways:

Unlock new bedrooms, offices, or investment studio space
Full project management, including design, permissions, and build
Ten-year warranty, daily progress checks, and transparent pricing
Compliance with London planning and building regulations in all serviced areas

Inclusions	Indicative Timeline	Warranty
Bedroom + stairs, insulation, electrics, regulations	8–10 weeks	10 years
Bedroom + ensuite, built-in storage, energy upgrades	10+ weeks	10 years
Multi-room, home office or studio, smart integration	10+ weeks	10 years

Guaranteed Peace of Mind

Every conversion includes our ten-year warranty and £10 million public liability insurance. Weekly independent inspections guarantee build quality. Our dedicated project managers visit daily, ensuring any queries are resolved immediately. This reliability is why 90% of our clients stay at home during the works.

Key Takeaways:

No hidden costs – fixed price, fixed timeline, all paperwork included
Guaranteed insurance and warranty cover for every client
Daily, clear communication with our on-site lead

Transparent Fixed-Price Quotations

We provide detailed, itemised quotations that break down every cost element of your conversion, from structural work through to final decorating touches. Our fixed-price approach means the figure we quote is the figure you pay, with no hidden extras or surprise charges emerging mid-project. This transparency allows you to budget confidently and make informed decisions about specification choices that align with your financial parameters.

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Recent Loft Conversion Projects

View a selection of our loft conversion projects in London below

Tybenham Road
Rear Dormer

Merton | London

Talma Road
L Shaped Rear Dormer

Brixton | London

Tremadoc Road

Mansard Conversion

Putney | London

Plough Road
Mansard Loft Conversion

Battersea | London

Glenister Road
Rear Dormer

Streatham | London

Rudloe Road
Rear Dormer

Balham | London

Quill Lane
Mansard Conversion

Putney | London

Newstead Road
Rear Dormer

Catford | London

View Our Design and Build Process

Check out the work of our amazing teams and
what we can achieve in your home

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Have your say…

Testimonials

    
 
 
       Posted on Google  
   
   Andy Brown 
 
 
 
 Trustindex verifies that the original source of the review is Google. From the initial meeting to the final finishing touch, Paul, Dangis and their team were great! We knew exactly what to expect each week, we had lots of photos and drone videos of work happening when we couldn’t see. They were full of advice and suggestions when we couldn’t visualise the end result. They left our home as clean and as tidy as they possibly could (we were living in the house as they were working around us). We are really pleased with the end result and with the building experience! Great time, fantastic work ethic and brilliant result!
  
 
      Posted on Google  
   
   Rebecca Barrett 
 
 
 
 Trustindex verifies that the original source of the review is Google. We can’t thank Paul, Dangis, and the team, enough for their hard work on our house. The house is everything we had imagined and more. We increased our scope multiple times throughout the process, and the team helped us seamlessly, and were always there to answer questions and support our plans. We only have good things to say about Clapham Construction, and will definitely be recommending them to all our friends and family. Thanks again!
  
 
      Posted on Google  
   
   Helen Stevens 
 
 
 
 Trustindex verifies that the original source of the review is Google. I cannot speak highly enough of Clapham Construction. Paul and Dangis were a dream to work with from start to finish. Everything was communicated so well and they provided honest, transparent and clear advice throughout; I felt supported and guided through all the decisions and they helped me make more bespoke decisions such as our windows and floor which weren’t necessarily easy! Everyone who came to work on the loft was excellent and it has all been completed to a high standard. The loft is beautiful and we just can’t believe how much space we have and how well done everything is. I would (and have!) recommend to anyone! Thank you Paul and Dangis - and we will be coming straight back to you for the next project!
  
 
      Posted on Google  
   
   Georgia Beales 
 
 
 
 Trustindex verifies that the original source of the review is Google. We’ve had our dormer loft conversion for coming up to three years now and haven’t had any major issues in this time. Any minor snagging issues have been dealt with quickly by Clapham. The whole process from start to finish was seamless. All the builders were very friendly and considerate too. Will continue to recommend this company to anyone who needs a loft done and will not hesitate to use again in the future. Thank you!
  
 
      Posted on Google  
   
   Danilo Rico 
 
 
 
 Trustindex verifies that the original source of the review is Google. Clapham construction service was extremely professional, the project was finished before the plan and we are so happy with our new space. Problems were resolved quickly and efficiently throughout the process. This was one of our best investment that not only added value to our property but also a significant improve of our quality of life.
  
 
      Posted on Google  
   
   Joel Prime 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a loft conversion completed by Clapham Construction Service earlier this year and couldn't be happier with the results. Paul and Dangis were on site every day and kept me fully informed throughout the entire process. Their communication, professionalism, and attention to detail were outstanding. I felt completely confident in their work from start to finish. Highly recommended for anyone looking for reliable and high-quality building services.
  
 
      Posted on Google  
   
   Jane Ansell 
 
 
 
 Trustindex verifies that the original source of the review is Google. We recently completed a double mansard loft conversion with Clapham Construction Service, and were very happy with the whole design and build process from start to finish. Paul and Dangis were great to work with, providing clear communication and always being available to answer questions or discuss options. Their team are also excellent, with all the trades doing a great job, very professional and respectful of the rest of our house. Inevitably with a build project there were a couple of issues that cropped up along the way, but CCS were excellent at helping resolve them. We are delighted with the final loft and the extra space, and have already recommended them to others!
  
 
      Posted on Google  
   
   Jamie Garratt 
 
 
 
 Trustindex verifies that the original source of the review is Google. We have just completed a loft conversion with Clapham Construction and it was great! We are so pleased with the new loft we have in our house, but the process of working with CC was really good. They were easy to engage with from the outset, the price was competitive and the actual construction was quick and efficient. Obviously it was a major building project with all the mess and decisions you’d expect, but it was made a lot easier and less stressful working with Paul, Dangis and the team. They completed the project on time and on budget and we enjoyed working with them - that is more than almost anyone we know can say about similar projects! We’d definitely recommend them.
  
 
      Posted on Google  
   
   Christina Ansong 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had an exceptional experience with Clapham Construction for our loft conversion. Paul, Dangis, and the whole team were fantastic from start to finish. They transformed our attic into two beautiful loft rooms and a bathroom, exceeding our expectations with their attention to detail. The entire project was completed at an impressive speed without compromising quality. The team showed great care throughout, ensuring everything was done to the highest standard. Their service was professional, friendly, and stress-free. We’re absolutely thrilled with the results and would highly recommend Clapham Construction!
  
 
      Posted on Google  
   
   Ayan Sengupta 
 
 
 
 Trustindex verifies that the original source of the review is Google. We have recently used Clapham Construction Services for loft conversion to add a bedroom and a bath in the house. We are very happy with the end-to-end experience with Paul, Dangis and the entire CCS team for high quality work done in quick time and with a very collaborative approach. Our overall project went into some unexpected blockers, but Paul and Dangis patiently helped us to resolve all the matters, kept us updated with timely communication and have been very flexible to guide us. They brought in a fantastic team to complete the work fast and in a cost-efficient manner. We will recommend CCS any day as a trusted team for home transformation projects.

View More Google Reviews

Results Our South London Clients See – When London loft conversions are planned properly, the benefits are both immediate and long term. Families gain a full extra bedroom with an ensuite, teenagers move upstairs into a private space, and living rooms are reclaimed from desks, toys, or exercise equipment.

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TYPES OF LOFT CONVERSIONS

Property investors and landlords often use loft conversions to create self-contained studios or high-spec bedrooms with ensuites, helping to improve yields while meeting building control standards for fire safety, insulation, and ventilation. Wellness-focused homeowners are increasingly opting for large rooflights, quiet insulation, and spa-style bathrooms so the loft becomes a calm retreat above busy city streets.

We see strong demand for multi-functional rooms: home offices that can convert into guest rooms with a sofa bed, loft gyms with fold-away equipment, or playrooms designed to evolve into study spaces as children grow. Sustainable choices such as sheep’s wool insulation, reclaimed timber, bamboo flooring, triple-glazed windows, and solar-ready roof configurations are now standard talking points in nearly every design workshop.

L shaped loft conversion services - loft conversions tooting, attic conversions battersea

skylight illustration in loft conversion

Skylight Conversion

Also known as rooflight conversions, Velux conversions install windows into the existing roof slope without altering the roofline, making lofts bright and airy.

Two Window Dormer

A variation of the dormer conversion with two windows, it offers more light, ventilation, and enhances property aesthetics.

Dormer Conversion

Popular in London, it extends the roof for more floor space and headroom, fitting most house types.

Hip to gable loft conversion with rear dormer

Hip to Gable & Rear Dormer

Combines hip-to-gable and dormer techniques, transforming small lofts into spacious living areas.

Hip to Gable

Extends the ridge line of hipped roofs to form a gable end, enlarging the loft space.

L – Shaped Mansard

Merges hip-to-gable and dormer methods, converting small lofts into roomy, functional areas.

L-Shape Dormer

Extends over the property’s back addition with a simpler structure than the L-shaped mansard, ideal for adding rooms or open layouts.

Mansard Conversion

Alters the roof structure for a larger space, commonly seen in terraced houses in London.

View Types Of Lofts

Increase Your Home’s Value. Enquire About Loft Rooms Today!

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How We Deliver Stress-Free Loft Conversions

Loft conversions require precise coordination between planning rules, structural design, neighbors, and logistics such as scaffolding and access. We take responsibility for the entire journey so you do not have to manage separate designers, engineers, and trades.

We handle all drawings, structural calculations, and planning or Lawful Development Certificate applications in-house, including conservation-area considerations and party wall advice where relevant. Scaffolding is almost always required at the front and rear, sometimes at the side, and typically remains in place for most of the 8 to 10 week build so our team can work safely and efficiently.

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LOFT CONVERSIONS: OUR PERKS

Loft Conversion Complete Process

We manage the design and build for you, planning permission, structural design, building control and your project manager will be on your site almost daily to oversee the works and keep you updated.

Quality Craftsmanship

Our works are warrantied, but they will stand much monger than that. We are builders primarily and our teams are experts with quality on our mind – you will get weekly inspections by the owner to ensure we deliver.

10 – Year Warranty On All Loft Conversions

Exactly what it says. We provide you with a warranty to cover you and your home for any defect from our works so you don’t have to worry. In addition you get an independent certificate by the regulators confirming that our works meet the approved building standards.

Attic Conversions Add Value

Getting A loft or attic conversion with us can add up to 25% to the value of your home, making it one the best investments you can make.

Unlock the Potential of Your Loft. Speak to Our Experts!

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Experience the Clapham Construction Difference

Contact Us For Advice On Attic Conversions

Your New Loft Conversion Starts Here

Last year, homeowners and families across South London trusted us to deliver over 180 dormer pitched roof conversions. The cost of inaction is clear: lost space, reduced comfort, and missed opportunities for investment growth. With fixed pricing, a 10-year warranty, and direct project management, your next step is simple.

Contact us today for a free home survey and discover how a pitched dormer loft conversion can transform your property’s future.

Guaranteed Peace of Mind

Key Takeaways:

No hidden costs – fixed price, fixed timeline, all paperwork included
Guaranteed insurance and warranty cover for every client
Daily, clear communication with our on-site leadf

Building Trust with Specialist Expertise

Who We Serve – London’s Homeowners and Investors

We specialise in dormer with pitched roof conversions tailored for growing families, remote professionals seeking office space, first-time renovators, and property investors. Our team delivers honest expertise, direct project management, and after-build support. With 20 years’ experience, we’ve shaped homes from Clapham to Crystal Palace, always respecting the needs of families and locals.

Our Methodology: Full Transparency from Start to Finish

Initial survey to establish feasibility and project requirements
Fixed-quotation with detailed breakdown of cost and timeline
In-house architectural drawing, planning submission, and building control liaison
Daily site management, weekly independent inspections, and post-completion care

Our knowledge of borough planning policies ensures your pitched dormer conversion maximises value and meets compliance every time. We prioritise ecologically friendly build practices, incorporating materials such as reclaimed timber and sheep’s wool insulation.

Recognition from Satisfied Londoners: “We can’t thank Paul, Dangis, and the team, enough for their hard work on our house. The house is everything we had imagined and more. We increased our scope multiple times throughout the process, and the team helped us seamlessly, and were always there to answer questions and support our plans. We only have good things to say about Clapham Construction, and will definitely be recommending them to all our friends and family. Thanks again!” – Rebecca Barrett

For London Homeowners

Loft conversions often sit within tight terraces, shared roofscapes, and conservation areas. Our 20 years’ specialised experience across Balham, Battersea, Bromley, and Fulham, means we understand local planning nuances, typical Victorian and Edwardian roof structures, and how phase works so neighbors and freeholders are kept informed and disruption is contained.

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LOCATIONS WE COVER

We operate across the whole of South London and can build lofts in the locations listed below.

South East London

With space becoming ever more valuable, many residents in South East London are looking to loft conversions to maximise their living space, adding both value and functionality to their properties.

South West London

With space becoming ever more valuable, many residents in South West London are looking to loft conversions to maximise their living space, adding both value and functionality to their properties.

South London

With space becoming ever more valuable, many residents in South London are looking to loft conversions to maximise their living space, adding both value and functionality to their properties.

East London

With space becoming ever more valuable, many residents in East London are looking to loft conversions to maximise their living space, adding both value and functionality to their properties.

West London

With space becoming ever more valuable, many residents in West London are looking to loft conversions to maximise their living space, adding both value and functionality to their properties.

USEFUL LOFT CONVERSION GUIDES

TYPES OF ROOF SUITED FOR LOFT CONVERSIONS

Framed Roofs: Preferred for cost-effective space expansion in loft conversions.
Pre-1960 Homes: Feature rafters for ample conversion space.
Reinforcement: Older homes’ rafters may need structural engineer guidance.
Trussed Roofs: ‘W’ shaped rafters; conversion requires ‘A’ shaped transition.
Stability: Steel beams between walls and ridge enhance stability.

THINGS TO CONSIDER FOR LOFT CONVERSIONS?

Assess Suitability: Evaluate loft’s purpose suitability before conversion.
Structural Factors: Consider headroom, roof pitch, and obstructions.
Plumbing: Ensure space for plumbing; seek alternatives if limited.
Heating: Consider sealed systems for space constraints.
Hot Water: Unvented cylinders might be preferable to combi boilers.

MAXIMISING YOUR LOFT CONVERSIONS POTENTIAL

Optimal Lighting: Mix natural and artificial sources for spacious feel.
Functional Use: Convert unused areas to bedrooms or studies.
Eaves Use: Create storage or reading nooks creatively.
Home Harmony: Integrate and optimise all available spaces.
Versatility: Ensure adaptability for relaxation, work, or storage.

UK BUILDING REGULATIONS FOR LOFT CONVERSIONS

Structural Soundness: Ensure conversions maintain property safety.
Fire Safety: Mandatory escape routes and smoke alarms are essential.
Energy Efficiency: Use high-quality insulation for sustainability.
Acoustic Comfort: Sound insulation reduces noise transfer.
Safe Access: Staircase designs must meet specific safety criteria.

WHAT IS THE MINIMUM HEIGHT FOR A LOFT CONVERSION?

Regulation: UK doesn’t specify a minimum height; comfort is key.
Practical Height: 2.2 metres from floor to ceiling is recommended.
Roof Influence: Pitch and structure affect available headroom.
Adjustments: Raising roof or lowering floor can increase height.
Feature Considerations: Account for beams or skylights in height.

BUILDING REGULATIONS APPROVAL & LOFT CONVERSIONS

Mandatory Approval: All UK loft conversions require it.
Surveyor Role: Inspections focus on regulations; completion certificates issued.
Thermal Efficiency: Meet U-value targets for desired standards.
Safety Emphasis: Ensure measures against falls and escape routes.
Fire/Electrical: Adhere to stringent safety standards.

DO LOFT CONVERSIONS NEED PLANNING PERMISSION?

PD Rights: Many conversions don’t need separate permissions.
PD Stipulations: Properties must adhere to specific volume limits.
Roof Limits: No alterations to existing roof height or slope.
Balcony Rules: Most aren’t permitted; Juliet balconies are exceptions.
Special Cases: Verify PD eligibility; consider a Lawful Development Certificate.

IMPROVING ENERGY EFFICIENCY WITH A LOFT CONVERSION

Dual Benefits: Gain space and boost energy efficiency.
Modern Insulation: Enhance thermal performance in conversions.
Efficient Windows: Reduce heat loss and save energy.
Reduced Bills: Proper insulation leads to energy savings.
Year-Round Comfort: Ensure insulation standards for all seasons.

LOFT CONVERSIONS VALUE, COSTS, AND EXPERTISE

Value Boost: Loft conversions can increase property value by up to 20%.
Cost Range: Depending on loft type typically upwards of £40,000 +.
Comprehensive Estimates: Cover design, modifications, and construction.
Expert Consultation: Seek guidance for detailed understanding.
Trusted Firms: Companies like Clapham Construction offer insights.

COMPONENTS OF A LOFT CONVERSION

Ceiling Joists: Ensure joists bear added load; consult a structural engineer.
Staircase: Plan for regulation adherence and space efficiency.
Heating: Achieve warmth through radiators and insulation.
Ventilation: Maintain optimal air quality with windows or vents.
Design Cohesion: Ensure the conversion complements the existing home aesthetics.

MAINTENANCE FOR YOUR LOFT CONVERSION

Regular Checks: Consistent maintenance ensures longevity.
Inspections: Identify wear; professional checks every two years.
Material Care: Address specific requirements, e.g., wooden beams.
Ventilation: Check systems to avoid dampness and mould.
Warranty: Be aware of warranties for workmanship or materials.

SAFETY IN LOFT CONVERSIONS

Structural Integrity: Consult a structural engineer for weight guidance.
Fire Safety: Adhere to regulations for escape routes and alarms.
Ventilation: Combat dampness and ensure warmth.
Electrical Norms: Adhere to safety standards for installations.
Safe Access: Ensure staircase width and headroom.

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Safety, Regulations, and Year-Round Builds

Your loft conversion must meet current building regulations on structure, fire safety, insulation, ventilation, stairs, and glazing. We work closely with structural engineers and building control officers so every joist, beam, and fire door is correctly specified and inspected, including smoke alarms, escape routes, and insulation thickness.

Most loft conversions still qualify under existing permitted development rights as long as volume limits, height, and materials are respected, but flats, listed buildings, and conservation-area properties often require full planning permission. In all cases, we recommend securing a Lawful Development Certificate so future buyers, surveyors, and lenders can see your loft was carried out in line with regulations and is protected by the 10-year rule on enforcement.

We build all year round. Each season brings different considerations, but the core program remains similar, and we protect your home with temporary coverings and careful sequencing. The best time to start is the period that aligns with your family calendar, school terms, and personal commitments, not a narrow “ideal” weather window.

ATTIC & LOFT CONVERSION GUIDES

New Build Houses

Read on to find out more about how new build houses can benefit from a professionally designed and executed loft conversion, adding valuable space and increasing the overall value of the property.

Detached Houses

Find out more about the potential of detached houses and how a well-planned and executed loft conversion can transform them into spacious and functional living spaces.

Semi-Detached Houses

Semi-detached houses offer great potential for a well-designed loft conversion, Read our guide on semi-detached loft conversions here.

Terraced Houses

A terraced house loft conversion can provide many benefits beyond just added space and increased value. It can also improve the overall functionality and layout of the house.

How long does a pitched dormer loft conversion take?

A typical dormer pitched roof conversion requires about 8–10 weeks from scaffolding to completion. Timelines may extend for larger or more complex layouts, but our process is tightly managed with clear milestones. Timely decisions by the homeowner also help keep schedules on track.

Will I need planning permission for a dormer with pitched roof?

Most pitched dormers on houses in London qualify under permitted development rights, meaning planning permission is not required if works remain within specific size and materials criteria. However, listed buildings, flats, and conservation areas will always require full planning consent.

How disruptive is the construction process?

You can usually stay in your home throughout. The noisiest period is during week 2 when we create the stairwell, which creates a temporary mess. Most of the build is above the original ceiling, so disruption is minimal after the early weeks.

What warranty do you provide for dormer pitched roof conversions?

Every conversion includes a 10-year warranty covering major structural works, and we hold £10 million insurance. All projects undergo weekly independent inspections, with aftercare support available for any follow-up issues or snagging.

Can I have eco-friendly upgrades in my dormer with pitched roof?

Yes, we can incorporate sustainable options such as natural sheep’s wool insulation, reclaimed timber, triple-glazed roof windows, and solar-powered skylights. These features improve energy efficiency and comfort while supporting property value.

Are scaffolding and structural plans included in the price?

Absolutely. All packages cover scaffolding, architectural drawings, planning submission, structural calculations, and project management – delivering a complete, fixed-cost service.

Do you offer London Loft Conversions in all boroughs?

Yes, our team handles loft conversions throughout South London including Balham, Battersea, Beckenham, Bromley, Clapham, Dulwich, Streatham, Tulse Hill, and the wider area.

Find Our More About Loft Conversions Today!

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Google Rating

5.0

Based on 73 reviews

Clapham Construction Service

5.0

James P.

09:01 25 Mar 24

We used CCS for a loft conversion last year, adding 2 bedrooms and an ensuite, and would wholeheartedly recommend Dangis, Paul & team. We came into the project trying to be as cost effective as possible, and they came up with a suggested change that not only reduced our cost but one that we preferred to our original plans. Everything was completed to a high standard by the team and throughout the works themselves they were easy to deal with - good communication, responded promptly to anything that came up, and both were a regular presence on site. All in all a great experience and one that has absolutely transformed our living space!

Michael S.

20:47 18 Mar 24

Would highly recommend Clapham Construction for your loft conversion needs. Paul and Dangis were great to work with - responsive, considerate and happy to explain everything.They also had a great team behind them at every step of the process. Taking on a big project like this can be daunting but the team really made it stress free end to end. We are now really happy with the high quality finish achieved and the new space gained. Don’t hesitate taking your project forward with them!

Charlie F.

16:11 18 Mar 24

CCS recently completed a loft conversion for us, adding 1.5 bedrooms and a shower room. The process was much smoother than we expected and all completed on the original timetable we agreed. Costs were also more transparent than similar businesses that we contacted for the job. Paul and Dangis dropped in most days and were hands on in managing the project. Their full team and all contractors they work with were friendly, professional and did a great job. They also gave us sensible advice on general roof improvements and fixing up part of an extension done by the previous owners. Would highly recommend them.

Jayne W.

09:44 17 Mar 24

I cannot rate Paul and Dangis enough, heading up a strong team of highly skilled, professional and efficient tradespeople. The job was cost effective but finished to a very high standard. It looks amazing!Paul and Dangis from the start of the project to the end were super communicators, understanding and always present in assisting me to make decisions about my project ( a mansard loft conversion)Thank you team. I would have absolutely no reservations in recommending Clapham Construction Company!

Kate A.

13:03 16 Mar 24

Clapham Construction were total pleasure to work with when they did our loft extension at the end of last year. We’ve gained a beautiful shower room and an additional bedroom with support from the wonderful team at CCS. Paul and Dangis supported us to understand decision-making and choices at every step of the way. They managed all the (incredibly professional) contractors and any queries so easily that we felt completely supported but not overwhelmed. We would use them again for any future house project in a heartbeat.

Marissa R.

10:58 07 Jan 24

CCS undertook a double single dormer loft extension and conversion for us in summer 2023 and we couldn’t be more pleased. Paul and Dangis were incredibly helpful from day one, assisting with the submission of the planning application, through to design solutions before and after start on site. The project was delivered on time, and the CCS team were very considerate - keeping the area tidy and even feeding our cat when we were away! Overall, it was a collaborative, open and stress free experience and we couldn’t recommend CCS highly enough. Marissa and Simon, Blackheath

Kevin O.

13:16 10 Nov 23

One of the main reasons why I chose Paul and Dangis for my loft conversion project on a rented house in South London was the excellent reviews they had. Now, I am pleased to be adding a 5 star review myself as a happy customer. This was a daunting project for me, living abroad. There is a hell of a lot of detail involved and I had no experience on this size of a project. Paul and Dangis guided me through the whole thing really well from planning, party walls etc being really experienced specialists. The communication was crystal clear and they were always on top of the low level details which is no mean feat. When I changed my mind on a key project decision, requiring some structural work to be undone, they were flexible and fair about it. The finished job is high quality, was completed on time. and I am very happy with it. Importantly, they are very nice guys to work with, and my neighbours had no complaints about anything. I highly recommend Clapham Construction Services!

Sally S.

18:38 09 Oct 23

We couldn't recommend Paul and Dangis more, having had the worst experience with builders 2 years ago, we had the best experience with Clapham Construction. They were great at communicating timescales (and sticking to them) and everything was finished to a really high standard. They were really flexible to our ever changing decisions and very accommodating - suggesting ideas and ways to make things better. They really care and this makes the whole process pretty stress free.

Stephanie B.

09:09 01 Oct 23

We could not recommend Clapham Construction Service more highly. They recently completed our hip to gable with rear dormer loft extension in Streatham Hill. From start to finish, Paul and Dangis were fantastic. They did exactly what they said they would do, when they said they would do it - which is a rare thing thesedays. They guided us through a daunting process with great professionalism and good humour. They were regularly on site and always kept us updated about progress and next steps. They were always responsive and considerate. Their team of trusted workmen were highly competent and friendly. Their attention to detail was notable and much appreciated. We are very happy with the finished result.

Georgina K.

12:38 17 Sep 23

Really recommend these guys for anyone doing a loft conversion. They are really thorough and provide a lot of support throughout. The process is really quick too… it took 8 weeks for my loft and that was two bedrooms and one bath. There was constant communication and updates which was also really great! Huge thanks to the team for being approachable and reliable.

Elise R.

15:39 23 Aug 23

Cannot recommend Clapham Construction more! It was an absolute pleasure working with Paul, Dangis and their team as we built a mansard and did a loft conversion as well as adding an en-suite bathroom. The planning process was a really good opportunity to get onto the same page and their invaluable advice meant it all went smoothly with engaging neighbours and the council. The building works were done quickly and to a very high standard. While we went for relatively cheap options, I was impressed with the quality of the fittings and materials. I also appreciated that throughout the building process, there were constant quality checks by Dangis and also points where he gave some great suggestions on how to bring more light into the flat which has made a huge difference to the overall feel of our home. Sadly we are moving away from the area as our family is growing but I wish they CC could come to our new home and work their magic!

James M.

17:12 19 Jul 23

We would thoroughly recommend Clapham Construction Service. Paul and Dangis were always very helpful from start to finish on our loft conversion and we are very happy with the result.

Anna L.

18:02 11 Jun 23

Our loft conversion took 9 weeks end to end and it was basically stress free (how many people have you met that say that about their building experience?!). Paul and Dangis were brilliant - knowledgable, empathetic and efficient. Would never use anyone else - highly recommend.

Helena P.

18:51 24 May 23

The fact that a building company has 100% 5* reviews tells you everything you need to know. They were brilliant. Efficient, Incredibly professional and responsive to all our questions. The thing that we found most impressive was the time that the guys took to clean up on a Friday to ensure there wasn’t that much dust and mess over the weekend. Would definitely use again.

Nicholas C.

12:11 12 Apr 23

Clapham Construction have done a great job on our loft conversion and we are very pleased with how smoothly the project went, and the brilliant loft space that we now have. Paul - thank you especially for guiding us through all the stages before and during the build. Their workmen were hard working from start to finish, efficient, and obviously very skilled. They were also polite, helpful and really tidy. We had great communication by email with their office, and with Paul in person and on the WhatsApp group - thank you. Our family in USA are now looking forward to staying with us in comfort this summer and beyond!

Bianca H.

08:00 16 Mar 23

Paul, Dangis and the team are simply top notch. They did such a high-quality job on a tight timeframe and communicated so well throughout. They were a pleasure to work with, handled all elements of the build from start to finish and kept disruption as minimal as they could. Couldn’t recommend them more highly if I tried.

Mindy L.

17:31 29 Jan 23

Thank you Clapham Construction! Your team were friendly, efficient, and highly motivated. The project ran to schedule with effective overlapping of tasks to allow for minimum disruption. Paul kept us actively involved at each stage of the process, so we always knew what was happening when, which was really reassuring. If we ever had a question, he would talk it through with us in person and offer advice without any pressure or expectation. The work is completed to an excellent standard. All the construction workers where kind, considerate, friendly, polite and kept our house as clean and tidy as possible. This took so much of the stress out of living on site during the works with a young son. Even the neighbours commented on how polite and considerate the builders had been. We would highly recommend this team for anyone thinking of undertaking a loft conversion in the future.

Laila A

13:01 29 Dec 22

Really lovely team - all professional, friendly and was great to have Dangis and Paul popping in regularly and being on the ball with the project. Happy with our new loft, all work done to an excellence standard, any follow up questions or issues dealt with quickly. Would highly recommend. Thank you very much.

Dani C.

07:51 25 Oct 22

Absolute professionals is the first thing that comes to mind when I think of Clapham Construction service. And there are two further things you need to know about them: they are brilliant at what they do and they are generous in spirit.Throughout our project Paul and Dangis answered our naive questions with warmth and care. They helped guide us at every turn, and almost certainly saved us money by making sure we considered all the options we had before making key decisions. But not just customer care, the building work is also top notch. The build itself was a well oiled process, coordinated with skill.I was initially worried about getting an anonymous loft company I'd never heard of in (after getting 8 different quotes from a variety of places including famous local ones) and being part of the 'box on the roof' brigade. Yet somehow, they have created build magic with some tweaks on 'a little bit of height' here, and 'a little configuration' there. We keep marvelling at the sturdiness and smoothness of the physical build even now, and the army of highly skilled teams they have were a pleasure to host in the house while we worked from home.And finally the most important bit - the money stuff- our Loft extension (including bathroom) was completed on time and more or less on budget. The additional costs were the unforseen - (yikes a victorian chimney needs dismantling!) and a few flourishes that we ourselves added to the mix - (can the door handles be gold?). Any additional build costs were communicated efficiently and immediately.Our experience of Clapham Construction is that they are patient, hugely knowledgable, and detail orientated with a wealth of incredible advice. Don't delay on getting them on your project!

Matthew Q.

12:48 24 Oct 22

Clapham Construction have done an excellent, high quality job on our loft conversion and I couldn't recommend them highly enough.They constructed an L-shaped Mansard with two bedrooms, bathroom and roof terrace. It was a very daunting project to go into but the process was seamless.We had around 5 different companies come in to give quotes and Clapham Construction was by far the best response in terms of information and presentation. Their pricing was competitive and in line with the others - a huge plus was how they set their prices from the start without changing. I believe the other companies fluctuate depending on the market prices at the time. One of the main things I liked about Clapham Construction is they do not take on too many projects so the owners (Dangis and Paul) give your project a lot of attention. At least one of them is on site most days and they are contactable via whatsapp. Be sure to ask about any possible extra work outside of the main quote so you can budget properly and not get any nasty surprises.Paul and Dangis were top experts and gave very good advice throughout. Their staff were very friendly and efficient. For the main construction/roofing/plastering, they completed this extremely quickly and I can't think of one day where there weren't loads of workers on site. The plumbing and electrics may take a bit longer but this is normal. Make sure you ask and find out exactly when you need to have tiles, bathroom items etc. on site because if you miss the deadline, it can hold up the work.Like with any loft conversion, you will need to be patient and communicate exactly what you want right down to the smallest detail, otherwise you may come to a misunderstanding during the project. Paul and Dangis were very good at adapting and carrying out my (probably unreasonable) requests.There was one incident where we had a gas leak in the front garden (nothing to do with Clapham Construction) and the scaffolding had to come down urgently so the gas engineers could dig down. I am sure this was hugely inconvenient for Paul and Dangis but they understood the emergency and the scaffolding was down within 48 hours at no extra cost. I'm sure a lot of other companies would not be so understanding.Overall we are so happy we went with Clapham Construction and we will be highly recommending them to any friends who want to do the same project.

Mikey J.

07:48 22 Sep 22

We spoke to a few companies to quote our dormer loft conversion but were immediately impressed speaking to Dangis & Paul and went with Clapham CS. We’re really happy with the end result which has given us some much needed extra space. Progress was quick, these guys are very experienced and know exactly what they’re doing. They’ll talk you through your plans and give you honest advice at key stages when you need to make a decision, very patient with us too! Would definitely recommend, they’ve done numerous houses in our neighbouring streets too, end results always look great.

Maria Luisa M.

19:00 18 Sep 22

Highly recommend this company. As first time buyers and first time renovators we couldn't be happier with their service. Paul and Dangis are very professional and thorough, at no times does it feel like corners are cut. They are able to provide genuine advice and guidance while being accommodating ensuring a stress free process.

Stuart W.

15:47 18 Sep 22

Clapham Construction completed our kitchen extension for us. We’re really pleased with the results, and it has changed the whole place. The price was agreed upfront and there were no hidden extras. Good communication throughout the whole process on WhatsApp and Dan showed great building experience. They had the whole team from build, kitchen fitting through to finishing the garden off available in house so made it a lot easier. Thanks guys.

Tom F.

08:52 05 Sep 22

We are delighted with our new loft conversion, Clapham Construction did a great job. They were highly professional, no hidden costs, and with friendly employees who treated the rest of the house with respect. We would not hesitate to recommend them.

Raj M.

17:22 01 Sep 22

Paul & Dangis did an amazing loft conversion for me on Latchmere road, always kept me in the loop whilst work was ongoing, quality was really good, just amazing finish really - can’t recommend enough!

Maria Luisa M.

18:56 22 Aug 22

Harry F.

07:28 13 Jul 22

There are so many horror stories of projects going wrong - thankfully ours was not one. Paul and Dangis run a very professional operation, communicate brilliantly and are upfront. The guys building were polite and respectful. The project was delivered on time, on budget and with no disputes or contestations. Could not speak more highly of CCS.

Andrew D.

12:38 05 Jul 22

We had a loft conversion, new roof and windows.The experience from start to finish was a please. Paul and Dangis are very helpful even when I was asking for things that were not possible. The whole team is a crack squad - from roofers to plasterers and electricians. And all organised to slot in one after another. The end job is excellent. I couldn't recommend more.

Patrick F.

06:45 04 Jul 22

I recently undertook a loft extension with Paul and Dangis of Clapham Construction Services and I cannot recommend them highly enough. From the first meeting through to completion, they were highly professional, responsive and provided a fantastic service. Throughout the project they offered sound advice and sensible solutions to my questions and wants for the project - it always felt highly personal and did not come across as just a ‘cookie cutter’ job. As a result I’m thrilled with the work and have no complaints in terms of how they managed and executed the project. They made what is often understood to be a highly stressful process feel like a breeze. I would recommend them to anyone

Muhammad H.

22:03 29 Jun 22

Knowledgeable, Detail oriented, Patient, and Amazing are the words that come to mind when I think of John Devlin and the Blue Ribbon team. I approached John expressing my interest to have my unfinished basement space turned into a ManCave. I dragged my feet for over a year and the whole time John was patient, shared ideas with me, but never rushed me, and as soon as I was ready… he rolled me into their very well organized development process. It is clear that NOTHING is left to chance and that the project will be PERFECT due to all the planning and detail that is done UP FRONT!!!!

Katherine M.

08:18 21 Apr 22

Very professional including all of the satellite staff. Made sure everything was finished properly and were always responsive. Would highly as recommend for a lot conversion.

Ben G.

12:15 04 Mar 22

CCS recently completed a loft, bathroom and kitchen renovation on our South London Terrace. Start to finish the service and end product were excellent, specifically:-Initial quotation - Dan/Paul worked with us to understand what we wanted, work through challenges and refine our ideas. Compared to other contractors we felt they listened, and provided a quote that whilst not the cheapest was a fixed price with clear indication of costs for extras.-Design- The wider team guided us through Building Control process well, refining the design as needed to make all appropriate submissions to the local council/supporting Party Wall requirements as necessary.-Build/Finish - Great team, always professional, efficient and punctual. Quality of finish was excellent, managed COVID supply chain issues well.-Recommendation - Highly recommended. This type of project is daunting especially if like us you haven't done this before. If you're considering one of your own, i'd strongly recommending calling CCS.

Brian L.

16:46 23 Feb 22

Very pleased with the work, and speed it was carried out.Good communication all through.Glad i chose them, as it is a bit daunting being such a large job.I have already recommended them to any neighbour who wants a loft extension.Thanks again guys.Brian

Joe S.

19:42 13 Feb 22

Very professional service from initial contact right through to completion. Very competitive price and a high quality finish. Fixed cost was agreed and project ran on budget and on time. Couldn't recommend them highly enough, we were very pleased with the results.

Matthew M.

20:10 21 Nov 21

Very helpful in discussing options and giving advice on loft conversions, possibilities, impossibilities etc. Very friendly, straight-talking and informative. Would certainly recommend to anyone considering their loft options.

Charlotte F.

14:41 28 Jul 21

I couldn't be more pleased with the job Clapham Construction did on my loft conversion and rear extension.The work was completed so quickly to a very high standard. Paul and Dangis were great with communication throughout and helped resolved any potential issues with building control and surrounding the party wall award.I wouldn't hesitate to use them again and would definitely recommend their services!

Michael M.

11:37 17 Jul 21

Our experience with this company was excellent from the initial consultation, through the building work on the rear dormer, to the final touches inside. The major structural work happened gratifyingly quickly (considering it was February), while the later internal work took a little longer. However it all worked out well and Paul and Dangis provided us with support throughout. Overall a really good experience for us, and really happy we went ahead with these guys.

John F.

12:03 12 Jul 21

Paul and Dangis are everything you want from your builders from the very get go. Approachable, honest, flexible, professional and most importantly, experts at what they do. We replaced our 1 room loft extension with a full hip to gable conversion and now have 3 wonderful rooms with so much more space. They listened to our needs, advised what they thought was best, and were always willing to tweak where required. We are exceptionally happy with the end result, and would welcome Paul and his team back any time for any future building works.

Clare H.

20:29 09 Jun 21

Clapham Construction did a loft conversion for us and we’re really pleased with the end result. The process began with a really detailed chat with Paul about what we wanted and what was realistic for the space. The quote offered good value and having talked to neighbours who’d used the company we were happy to go with them.The staff were quick and efficient and Paul and Dan kept in touch and visited frequently throughout to keep on top of the job and keep us in the loop.Payments were split by stage, which is great as you can control your budget and know what’s been delivered and when. The final payment is only made once snagging is complete - this was great as we’ve had experience in the past of builders never finishing jobs off. Not the case here!Overall really pleased, would use them again and very happy to recommend!

Jo T.

15:37 08 May 21

Clapham Construction did our loft conversion and did a great job. There were helpful, responsive, great value and did a really good job. Highly recommended.

Harry M.

13:57 08 May 21

I'll confess I am a bit picky when it comes to renovation work, dad was a builder. I ended up getting 10 or so quotes for the works, it we were a little caution from the passed. Dan and Paul came and spent the longest time with us just discussing our needs and planned use... we really appreciated this as no one else asked. There advise was then based completely on that, talking us out of some additional works that they felt wasn't needed... which we really appreciated.There quote was mid-range compared to others, but unlike most was fully inclusive and jargon free.We took the plunge feeling the most confident with them and so so happy we did. In short, they delivered on what they said, what we wanted and how they said they would. Admittedly this wasn't;t in the way we imagined, but once they explained it, this made sense. Working in a law practice setting expectations is key.Lovely chaps, great value and a fixed budget, excluding some add ones we opted for.Thanks for everything and looking forward to planning a rear extension with you

Greg C.

09:19 09 Apr 21

I was considering making an offer on a property with an old, poor quality loft conversion which we were looking to update after purchase. Paul @ Clapham Construction was able to give me great advice and expertise on my options, and his honest advice was extremely valuable and ultimately saved us £££ and hassle up front.Once we have identified a loft conversion project in the near future, Paul will be the first person I call. Thanks.

skyphone D.

08:18 14 Sep 20

The first thing you get with Clapham Construction is a First-Class service.Paul and Dangis gave us a really personal, tailored service, which meant so much to us when undertaking our first loft conversion.Right from the off Paul went out of his way to offer his expert consultancy, helped us to make key design decisions and saved us thousands!!!Clapham Construction offer a level of professionalism higher than a number of their competitors, from working with us, the quoting process, to scheduling the works, implementing the build and their after-service care... definitely value for money.Even after the project has been completed, we are still in contact (via our project WhatsApp group), share a joke or two and let the guys know if we have any problems.Well done guys and continue the good service!

skyphone D.

19:04 09 Sep 20

The first thing you get with Clapham Construction is a First-Class service.Paul and Dangis offered us a really personal and tailored service, which meant so much to us undertaking or first loft conversion.Right from the off, Paul went out of his way to offer his expert consultancy and helped us to make key design decisions and saved us thousands!!!Clapham Construction offers a level of professionalism higher than a number of their competitors, from working with us, their quoting process to scheduling the works, implementing the build and their after-service care... definitely value for money.Even after the project has been completed, we are still in contact (via our project WhatsApp group), share a joke or two and let the guys know if we have any problems.Well done guys and continue the good service!

Robert W.

20:10 07 Sep 20

Clapham Construction - Attic ConversionClapham Construction completed an attic conversion for us earlier this Summer. We were v happy with the whole process and the final result. Good communication throughout and having a fixed cost agremment made it easier for us to keep to our budget.

Suzy C

11:48 20 Aug 20

After a lot of research into local firms for our construction work Clapham Construction Service came out on top. From quoting to completion they were a very helpful and hands on team - if there were any issues (not their fault!) they solved them quickly - would highly recommend! They demolished and refitted our bathroom & kitchen - and we are about to use them again for a mansard rood extension.

Isla W.

11:37 20 Jul 20

Clapham Construction were extremely helpful and responsive throughout the build and the results were fantastic. The vaulted ceiling looks very dramatic and the loft feels spacious and light.

Andrew C.

10:02 20 Jul 20

Great team a pleasure to work with. Paul and dangis are very responsive and resolve any queries very quickly which is a nice change when compared to previous builders we have used. So wouldn't hesitate to recommend Clapham construction

Rajiv D.

09:48 20 Jul 20

Everything was very easy from start to finish with these guys. Terms agreed up front with nothing hidden at all, communication brilliant the whole way even with a Whatsapp group with questions answered 7 days a week! The finish is of an incredibly high standard and advice & direction given when necessary was great. Couldn't recommend these guys enough and would most certainly use again if I ever required.

Joe B.

19:03 16 Apr 20

The team are brilliant and a special thank you to Dangis and Paul. They are hands on. We had an existing loft, which was done by the previous owners 20 years ago and it was awful. These guys came, provided a really competitive quote.....which I advise everyone to check against others... Clapham construction initially looked a little more expensive than another quote, but when you look into the detail they include everything we needed and there were no extras... another company would have charged for every addition which would have come out more expensive in the end... which is a bit naughty really. Very impressed with the speed and communication was really hot... Dangis/Paul were around all the time and as owners sorted everything for us.... exactly what you want really. Thanks Gents

Catherine H.

18:13 16 Apr 20

I was initially going to leave a glowing and Positive 5-STAR review, but to be honest I will use this opportunity to say THANK YOU!!! again to Clapham Construction. Paul and Dangis have been exceptional. We starting our loft conversion 3months ago and where nearing completion when this whole Covid-19 thing hit and we were seriously worried. These guys knew we had some medical concerns in the house and they were nothing but brilliant. They had us watertight and completed as well as maintaining really decent levels of social distancing throughout.. now we have a dream loft and they have been terrific at helping us source materials for completion considering the circumstances... carpets, paint etc... even let us hire some of their team for moving furniture etc.. upstairs to complete.... Thank you, Thank you.... anytime you guys need anything just let us know... as I said we owe you big time.... Cathy xxx

Catherine H.

18:13 16 Apr 20

Danielle F.

22:38 09 Jan 20

From the moment we met Paul and Dangis we knew we were on to a winner! They compliment each other really well and they made us feel so at ease from the word go. Nothing has been too much trouble and their communication is unreal - they always get back to us and no matter how many times we called / text - they always had patience and a sense of humour ! But above all - we love our house! We had a loft and an extension and both have been incredibly done and on time ( if not quicker than planned) . The quality and finish is brilliant , all of the tradesman that they have working for them are excellent. We were terrified of entering into this process as we have heard such horror stories but their business is run so well that we have never had to worry ! I highly highly recommend these guys if you planning on doing a build ! Thanks guys !

Hans W.

16:17 09 Jan 20

Super Happy with these guys. Previously we hand some large 'all London brand' doing all our works. But really we were not happy as the works is passed over to guys on site and no one oversees it.... so you pay for nothing really. So we looked for someone more reliable. We found clapham Construction by recommendation and we were not disappointed. Start to finish they did what we agreed and delivered what they promised.... we are not the most trusting of people but we couldn't ask more of Paul and Dangis and all their teams. As for the Loft Conversion.... It's amazing.

Adrian R.

21:09 20 Dec 19

Reviews are often subjective, just look at Trip advisor, I guess you can't always be satisfied with circumstances and services all the time, especially in your home. What I love about these guys in on day one and particularly in the pre-construction meeting, they sat me and my wife down and told what to expect (the worst bits), what could go wrong and what they would do about it. A bingo, they did just that, including a small leak we had through the skylight. Brilliant reaction and responsibility. Overall the service was very good, they were clean, tidy and respectful, laying sheets from the front door to the back so they could move materials without making a mess. Top job.Special thank you for Paul and Guy

Lorna C.

19:32 18 Nov 19

I am extremely happy with the services of Clapham construction and the outcome of the completed loft conversion. The workmen were tidy, polite and completed on the job instructions. I would highly recommend to all who dream of having a dream come true loft! Special thanks to owners/project managers Paul and Dangis, they been on site nearly every single day to check progress and keep me up to date. They did exactly what they were contracted to do and that’s why we Love them!!!

George A.

18:15 27 Oct 19

I found Clapham construction service on Youtube, when I was browsing, trying to educate myself on the process of a loft conversion. I was seduced by some lovely videos to be honest but invited them to quote for the works. To be honest without sounding so enthralled like some other reviews I’ve read… they did and acted exactly as they represented on the videos and website. I couldn’t complain about anything because they did exactly what they said on the tin. Having spoke to the owner a few times it seems they limit the number of jobs they do per year to ensure they the management can personally manage each job, that’s a good business model.

Tong X.

02:01 24 Jan 19

I have already recommended these guys a few times already. I do property developments so these guys have done some refurbishment, extension and lofts for me. They are brilliant. Saved me money and time (compared to previous contractors). They were onsite everyday checking the quality, progress and dealing with issue... so i did not have to get involved. Well worth calling them

Tong X.

16:37 23 Jan 19

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