Contact us

Specialists in Loft Extensions, Loft Conversions & Home Extensions for over 20 years. Contact us today for a free consultation and friendly advice.

Free fixed price quote! 

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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…

0203 950 7957

Suite 17,
264 Lavender Hill,
Clapham, London
SW11 1LJ

Open positions

We’re constantly on the look for second fix carpenter’s – If you’re a passionate worker and think you have what it takes, send your resume and details to us.

Looking For Loft Extension Services?

Areas we cover across London

Whether you’re looking for a loft conversion in Bromley or a loft conversion in London, Clapham Construction Service are a company you can trust. We have such faith in our expert craftsmanship that we provide a whopping ten-year warranty on all of our works.

What’s more, our team will be happy to stay in touch for the following ten years should you have questions or concerns about any aspect of our work. If that’s not faith in our workmanship, we don’t know what is.

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