Business Details
23 Years
experience
Loft Conversion & Home Extension Specialists in London
Clapham Construction Service has specialised in Loft & Home Extensions for over 20 years, delivering first-class service through expertise and innovation. Our team takes full accountability for every project, providing detailed specifications and fixed pricing to eliminate surprises. With a 10-year protection warranty, we prioritise customer satisfaction by maintaining transparency, accountability, and exceptional craftsmanship.Our approach combines decades of industry experience with hands-on project management, ensuring projects meet regulatory standards while exceeding client expectations. We serve London and surrounding areas, offering free consultations to guide clients from initial planning to completion.
Services
Loft Conversions
House Extensions
Design and Planning
Mansard Conversion
Dormer Loft Conversion
Skylight Conversion
Victorian Conversion
Hip to Gable Conversion
Trussed Roof Modification
Conservation Area Extensions
Details
- Year established: 2003
Highlights and features
- We offer fixed prices with no hidden costs for all loft conversions and extensions.
- Our 10-year protection warranty ensures long-term peace of mind for every project.
- We provide detailed specifications to guarantee transparency and client understanding.
- Our team manages projects directly on-site, ensuring full accountability and oversight.
- We combine 20+ years of experience with innovative design and planning solutions.
What people say
High-quality finish
Excellent communication
Fixed pricing guaranteed
Regular on-site presence
Stress-free process
Services
Loft Conversions
Clapham Construction Service delivers custom loft conversions that maximize space while maintaining structural integrity. Our expert team handles planning permissions, party wall agreements, and full build management. Specializing in dormer, mansard, and hip-to-gable conversions, we ensure minimal disruption and optimal value addition to your property.
House Extensions
We create seamless house extensions that enhance living space and property value. Our services include design development, planning applications, and full construction management. Whether adding a side return or wraparound extension, we maintain compliance with building regulations while prioritizing client vision.
Design and Planning
Our comprehensive design service ensures project feasibility before construction begins. We provide detailed specifications, budget planning, and regulatory submissions. This includes party wall agreements, conservation area considerations, and structural calculations to guarantee smooth execution.
Mansard Conversion
We specialize in transforming properties with mansard conversions, offering maximum headroom and aesthetic appeal. The process includes roof redesign, insulation upgrades, and interior finishing tailored to client requirements while adhering to local council guidelines.
Dormer Loft Conversion
Our dormer conversions increase usable space and natural light in loft areas. We manage structural modifications, window installations, and finishing touches while maintaining roof integrity. Projects include rear dormer additions for Victorian and terraced homes.
People
Paul
Co-Owner & Project Manager
With over 20 years in construction, Paul oversees project delivery, ensuring quality and client satisfaction through hands-on management and transparent communication.
Dangis
Co-Owner & Operations Director
Dangis manages daily operations and site logistics, leveraging extensive experience to maintain project timelines and craftsmanship standards across all builds.
Questions
What services does Clapham Construction offer?
We specialize in loft conversions, house extensions, and design-and-build projects across London, including mansard, dormer, and hip-to-gable conversions.
How long does a typical loft conversion take?
Most loft conversions are completed within 8-12 weeks, depending on complexity and required approvals.
Do you provide free consultations?
Yes, we offer free, no-obligation consultations to discuss your project, budget, and design options.
Are your prices fixed?
Yes, we provide fixed pricing upfront with no hidden costs unless changes are requested by the client.
Do you offer warranties?
All projects include a 10-year protection warranty covering structural workmanship.
Which areas do you serve?
We operate across London, including Balham, Battersea, Beckenham, Croydon, and Wimbledon.
Reviews (4)
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
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
Jun 21, 2021
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Clapham Construction did a loft conversion for us and were 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 whod 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 whats been delivered and when
Payments were split by stage, which is great as you can control your budget and know whats been delivered and when
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
