Clapham Construction Service
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Clapham Construction Service
From loft conversions to home extensions, we have over 20 years experience within the construction and building industry and loft conversions have been one of our biggest focal points during this period of time. Our team has seen and completed almost every project imaginable over the years and it's safe to say we've seen it all.

We can say with absolute certainty that we're the loft conversion specialist you need for any loft conversion project you may have in mind. Just because we are a business and generate sales doesn't mean we can't talk openly and honestly with people. If you want it we can get it, if we can't we will help you find someone who can help instead.
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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 specialist 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.
Here at Clapham Construction Service, we've become known for our expertise, our no-nonsense approach to our work and our clear, concise communications. We know that just like our clients, each home we work on is different. It comes with its own unique floor-plan, its own possibilities and of course, its own unique obstacles.
We have been working in this industry for a decades, we know how to create house extension designs to build bespoke loft conversions and extensions in London. Over that period we have developed our design and build process to help simplify the process and share with our clients. A loft conversion, if built by experts, often follows a best practice pattern of building phases for Loft Conversions in London.
Here at Clapham Construction Service we are proud of each one of our jobs. Many years of experience in building loft conversions and extensions has given us the confidence in the quality of our work. More than just relying on our experience we actively review our works each week, with one of our owners always working in the capacity of quality control officer and reviewing your home, the works and the teams.
A side return extension stretches your home into the alley or side space between you and your neighbour or fence at the side of your house. This is very typical on victorian houses with a period rear addition. It's also great for ground floor flats. Though these can often be small they can have a dramatic effect in gaining space.
Reviews (6)
Michael McKenna
Michael McKenna
Jul 21, 2021
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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 Fyfe
John Fyfe
Jul 11, 2021
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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 Hulme
Clare Hulme
Jun 21, 2021
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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
Harry Morton
Harry Morton
May 11, 2021
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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
Skyphone Dan
Skyphone Dan
Jan 27, 2021
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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.
Kerry-Anne Austin
Kerry-Anne Austin
Jul 08, 2018
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After much consideration and around 4 quotes, we decided to appoint Clapham Construction Service to do our loft conversion after meeting them last. We were extremely happy their knowledge and it was great to meet the director who actually managed the project for us. We were delighted with the outcome and finish. In fact, after seeing our completed loft, we have started a planning application for our extension along with our neighbours.
The other reviews explain everything that you need to know. I’ll just say from my perspective what I’ve read is true, you get what they say you get, we are