Extend your Keynsham with an extension

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Keynsham? To see prices and availability for your job click green button.

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From £22,112

Last active Oct 26
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Bristol Building Co.Ltd

Bristol Building Co.Ltd is an established and experienced local extension builder in Keynsham. Please contact us for a free, no obligation quote an...

From £22,152

Last active Oct 26
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J GREEN PLASTERING LTD

J GREEN PLASTERING LTD are here to help customers who need an Extension Builder in Keynsham. We offer a competitive rate to complete all your exten...

From £21,776

Last active Oct 26
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MSH Construction (Bristol) Ltd

Simon Hill

Relax... you have found a reliable extension builder in Keynsham. MSH Construction (Bristol) Ltd is a friendly and reliable company based in Keynsh...

From £22,016

Last active Oct 26
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Smart Building Works

Smart Building Works are here to help customers who need an Extension Builder in Keynsham. We offer a competitive rate to complete all your extensi...

From £22,184

Last active Oct 26
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T Clarke Builders

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

From £22,072

Last active Oct 26
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KDS Building Services

Trusted and professional extension builder in Keynsham. Experienced in all extension buildering work and keeping within budget and on quote. KDS Bu...

From £21,824

Last active Oct 26
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24 7 BUILDING SOLUTIONS LTD

Sarah Godwin

24 7 BUILDING SOLUTIONS LTD is a trusted extension builder serving customers in Keynsham and the surrounding area. Contact us to today to get a com...

From £22,256

Last active Oct 26
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Symmetry Design And Build

Symmetry Design And Build is a trusted extension builder serving customers in Keynsham and the surrounding area. Contact us to today to get a compe...

From £22,224

Last active Oct 26
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Cullimore Renovations

Trusted and professional extension builder in Keynsham. Experienced in all extension buildering work and keeping within budget and on quote. Cullim...

From £22,248

Last active Oct 26
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DJG Gibbs

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Flat roof extension cost in Keynsham

Estimates for build a flat roof extension near Keynsham

A flat roof extension ranges from the cheapest of £21,776 (MSH Construction (Bristol) Ltd based in BS4) to the dearest of £22,256 (Symmetry Design And Build based in BS3), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes. 

Find out how much your flat roof extension will cost in Keynsham by posting a job with HaMuch. We'll send it to extension builders in Keynsham.


Estimates for common extension builder jobs in Keynsham;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

More extensions & conversions cost guides...