Loft Extensionsrenovations

London.

Clapham Construction has specialised in Loft & Home Extensions for over 20 years.

Our delivery promise

Stunning Looks & Functionality

Full Accountability

We own our business, we sell you our service and then we manage your project for you directly on site.

10 Year Protection

All our projects come with a 10 year protection warranty. Our warranty cover is one of our key elements.

Unbeatable Prices

Our prices, like us, are straight forward and laid out right at the beginning and do not change unless you want it to, prices are fixed, guaranteed!

100% Customer Focus

Just ask our clients, they will not only tell you, but show you what we do and what sets us apart in the market.

Detailed Specification

We offer full specifications so you know exactly what you’re getting. No surprises.

Who we are + What we do

Loft Extension Specialists

Welcome to Clapham Construction Service, a construction company serving the London area. Here at Clapham Construction, we provide our clients with a first-class service thanks to our 20 years of experience within the construction and home renovation industry.

From our London loft conversions to our stunning home extensions, we go above and beyond to create that much needed extra space in your home where you need it most.

Whether you’re looking to increase your property’s value or simply make it more liveable for your growing family, we can help make your home extension dreams a reality.

Contact us

Looking For Loft Extension
Services in London?

Whether you’re looking for a loft conversion in London or a 100% bespoke home extension on the outskirts, it all begins with our free consultations in which you’ll receive honest feedback and advice about the project you have in mind.

Contact usBook a consultation
By far the best team I’ve ever worked with. They truly understood the look I was going for and completely nailed it!

It all begins with our free consultations!

Book a consultation
illustration of loft conversion

Loft Conversions + Extensions

Loft conversions are without a doubt our speciality. From creating a small loft conversion in the space you have available to creating entirely new floors, here at Clapham Construction Service, we can make your loft conversion work for you. 

illustration of home extension

Home Extensions

House extensions can create a stunning transformation to any home, adding extra living space and creating an entirely new look that reflects the unique style of its owners. 

Case Studies

View our 3D Virtual Tours

Loft conversions are a truly incredible addition to any home. Not only do they add vital square footage to your liveable space but they do so without having to sacrifice any of your outdoor garden areas. They can add up to 20% to your property’s value making them not just a great addition in terms of your lifestyle but a great investment. 

Here at Clapham Construction Services, we provide a free consultation for anyone looking to add a loft conversion to their home. During these consultations, we inspect your property to establish whether it’s suitable for a loft conversion while finding out more about your style and what you’re hoping to achieve. It’s also incredibly important, however, that during this time we introduce ourselves to you as a company. The fastest way to get an idea of what we can help you achieve is through looking at our previous work. We’re proud to boast an extensive portfolio and while this used to consist of a portfolio of images, we’re now proud to boast a selection of virtual tours.

View more 3D Tours

Have your say…

Testimonials

Nicholas Carpenter
Nicholas Carpenter
12/04/2023
Trustindex verifies that the original source of the review is Google.
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 Hamilton
Bianca Hamilton
16/03/2023
Trustindex verifies that the original source of the review is Google.
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 Lee
Mindy Lee
29/01/2023
Trustindex verifies that the original source of the review is Google.
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.
Shayan Bokhari
Shayan Bokhari
29/12/2022
Trustindex verifies that the original source of the review is Google.
Paul, Dangis and their team were excellent given we had some obstacles with the council on design, they accommodated what we required. The work was very professional and communication was on point. We are very happy with our end result and any teething issues they resolved quickl. I would recommend the team to anyone. Thanks again for all your hard work.
Laila A
Laila A
29/12/2022
Trustindex verifies that the original source of the review is Google.
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 Carter
Dani Carter
25/10/2022
Trustindex verifies that the original source of the review is Google.
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!
Mikey Johns
Mikey Johns
22/09/2022
Trustindex verifies that the original source of the review is Google.
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 McKendry
Maria Luisa McKendry
18/09/2022
Trustindex verifies that the original source of the review is Google.
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 Williams
Stuart Williams
18/09/2022
Trustindex verifies that the original source of the review is Google.
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 Forman
Tom Forman
05/09/2022
Trustindex verifies that the original source of the review is Google.
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.

Whats included in a Free Consultation?

A no obligation Fixed Price quotation

Our free 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 Loft or Extension project. 

Review the suitability of your property for the proposed project.

Conduct some prior planning research to review your options.

Discuss specifications and options available for the works.

Discuss things to budget for… beyond our works to complete the build.

And much more…
Learn more
Google Rating
5.0
Based on 73 reviews