Our free loft plan consultations can usually last from 20 minutes to one hour depending on whether you just want a fixed price quote, or you would like some advice on your options and knowledge on what’s involved in undertaking a house extension project or loft conversion in London.
Free Loft Conversion Consultation
SPECIALISTS IN LOFT CONVERSIONS AND HOME EXTENSIONS
FOR OVER 20 YEARS!
Whats included in free loft plans?
We will also provide you will a written fixed price quotation following the meeting and some key materials on the things we have discussed for reference.
Here’s what we are able to cover in our consultations:
- Review the suitability of your property for the proposed project
- Conduct some prior planning research to review your options
- Discuss specification and options available for the works
- Discuss things to budget for… beyond our works to complete the build
- Provide you an introduction to:
- The Design Process
- The Build Schedule and Timing
- Building Regulations
- Partywall Matters
Our consultations can help turn your underused loft space or garden into a dream space.



Have your say…
Testimonials
Posted on Andy Brown19/02/2026Trustindex 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 Rebecca Barrett15/12/2025Trustindex 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 Helen Stevens03/09/2025Trustindex 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 Georgia Beales01/08/2025Trustindex 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 Danilo Rico07/07/2025Trustindex 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 Joel Prime02/07/2025Trustindex 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 Jane Ansell08/05/2025Trustindex 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 Jamie Garratt24/01/2025Trustindex 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 Christina Ansong16/10/2024Trustindex 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 Ayan Sengupta31/08/2024Trustindex 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.Google rating score: 5.0 of 5, based on 83 reviews
Trustworthy Service Backed by Real Customer Experiences
What Our Clients Say
"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."
— Joel Prime
Industry Recognition & Quality Assurances
20 Years' Experience
Specialised in London loft conversions
10-Year Warranty
Covering all structural work
£10M Public Liability
Insurance for complete protection
We are proud to serve areas including Loft Conversions Balham, Loft Conversions Battersea, Loft Conversions Beckenham, Loft Conversions Bromley, Loft Conversions Dulwich, Loft Conversions Merton, Loft Conversions Streatham, Loft Conversions Wandsworth, Loft Conversions Wimbledon, Loft Conversions Dartford, Loft Conversions Fulham, Loft Conversions South London, Loft Conversions East London, Loft Conversions West London, Loft Conversions London
View Our Design and Build Process
Check out the work of our amazing teams and
what we can achieve in your home
Skylight Conversion
A Skylight or ‘Velux’ loft conversion is one of the simplest conversion types to build. As the roof of the property is not altered it is normally possible to avoid planning permission. A great way to increase space at lower cost.
Two Window Dormer
Often found on existing homes built 100 years ago and sometimes requested by the planning officers. This conversion provides a surprising amount of additional head room and can be a stylish way to add a loft conversion.
Dormer Conversion
This is one of the most popular types of loft conversion. It provides a large amount of additional space up to 60 Cubic metres and really good head height. It also gives additional design potential such as Juliet Balcony, floor to ceiling glass and roof lights.
Hip to Gable & Rear Dormer
As the title states, the side sloping roof has been raised , normally in brick, and allowed us the head height and structure to add a rear dormer.
Hip to Gable
This is a simple conversion as shown in the image as all we have done is change the side sloping roof and raised this side in brick, which turns a low roof, with low head height into a workable space for any combination of conversion.
L – Shaped Mansard
As with the L-Shape Dormer, the L-Shape Mansard will add a larger amount of space with multiple design options by using the roof of the rear addition. Planning permission is required for this type of work, but we can submit approval for Juliet Balconies and a terrace to really make this conversion special.
L-Shape Dormer
This type of loft conversion is built by joining two dormer builds together, utilising the rear addition. This results in a significantly larger space than other builds. This conversion gives options for more bedrooms in the new build, a terrace on the rear addition and spare rooms, studies or bathrooms.
Mansard Conversion
A mansard loft conversion alters the structure of a sloping roof to an angle of 72 degrees, given a unique shape as shown. Windows are fitted into the new roof almost like small window dormers. Like Dormers the Mansard conversion is usually erected to the rear of a property , but can be constructed as a front and rear mansard (double mansard) if permitted. This conversion provides a larger amount of space, effectively adding another floor to your home.


