Our Design Team can help you deliver the right look for your Loft conversion or Extension. All of our design works come with a 3D model available via a Free App so you can visualise the space before we finalise it for you.

To talk about your project, design options and how we can help... contac...

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Loft Bathrooms... As big as you want.

The bathroom, shower or Ensuite. Its often an area that we can help deliver a bit of a wow. Regardless of size. We can help you be clever, even on a budget to maximise space, often using reclaimed items and inexpensive fittings to give these spaces a bit of ...

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Communication... we have it nailed !

We take pride in our business, we the owners directly attend all Free home consultations, quote for every job and manage every project from the start of the design process until the day we hand over our keys and completion pack.

We attend your property dail...

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L-shaped Dormer? We have you covered.

L-shaped dormers, despite some local authority restrictions are still very popular. This is one we did in Brockley, complete with lowering ceilings and some bespoke carpentry. Anything can be built and designed to your specification. Always on time, always w...

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Clapham Construction Service can do it all. For all of our Loft Conversions and Extensions we provide services for Tiling, Decoration, Under floor heating. Everything you need. If you can find it on Pinterest, instagram, facebook or online we can match the look, style and design...

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On Time, On Budget, On the Point!

We specialise in these works, lowering ceilings, raising dormers and building bigger homes for growing families. We cover all of it, our unique method of working brings quick results, great quality and most importantly...... Easy, clear and Honest communication....

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Another new Job started in Tooting.

Rear Dormer with French doors and a Juliet balcony. We will also be undertaking some internal refurbishment works.

This project came recommended to us from an existing client. We aim to complete as quickly as the last project.

See more projects at www.cla...

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a month ago
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 !
- Danielle F
3 months ago
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!!!
- Lorna C
a month ago
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.
- Hans W

Loft Conversion in London | Local builds

If a loft conversion in London or across the capital is what you want, or if you just simply want to see what you could get from the space you have, Clapham Construction Service can offer you the right advice and the design and build service you need. In addition to our bespoke Loft Conversions we operate a successful range of Home Extensions and Basements tailored for you, your home and your lifestyle 

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  • 020 3950 7957


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Suite 17, 264 Lavender Hill, Clapham Junction
SW11 1LJ
United Kingdom

Opening Hours

Mon:8:00 am – 8:00 pm
Tue:8:00 am – 8:00 pm
Wed:8:00 am – 8:00 pm
Thu:8:00 am – 8:00 pm
Fri:8:00 am – 8:00 pm
Sat:8:00 am – 8:00 pm
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