Extend your CT20 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 CT20?

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Build a flat roof extension cost in CT20

Buildstead

From £21,664

Experienced extension builder ready to quote for your work. Buildstead is the best extension builder in CT20. No obligation free quotes and many ha...

M LONG T/A MJ BUILDINGS

From £21,736

Need an Extension Builder in CT20? M LONG T/A MJ BUILDINGS has been helping local clients (20 mile radius) with their extension buildering jobs for...

Tom Clark - Raison Home UK

From £21,776

Tom Clark - Raison Home UK is a trusted extension builder serving customers in CT20 and the surrounding area. Contact us to today to get a competit...

THE EAST CLIFF BUILDING CO LTD

From £21,936

Experienced extension builder ready to quote for your work. THE EAST CLIFF BUILDING CO LTD is the best extension builder in CT20. No obligation fre...

Stade Street Garage Ltd

From £21,744

Trusted and professional extension builder in CT20. Experienced in all extension buildering work and keeping within budget and on quote. Stade Stre...

Sprinks Construction Ltd

From £21,840

Trusted and professional extension builder in CT20. Experienced in all extension buildering work and keeping within budget and on quote. Sprinks Co...

Pentland Homes

From £21,664

Pentland Homes is an established extension buildering business in CT20. We come highly recommended and provide competitive quotes for your work.

5 Ways Carpentry

From £21,656

John Nicoll trained as a joiner and carpenter in St Andrew's, Fife. For over 30 years, he has been operating in the London area - setting up 5 Ways...

LEVEL CONSTRUCTION

From £21,816

Relax... you have found a reliable extension builder in CT20. LEVEL CONSTRUCTION is a friendly and reliable company based in CT20 who consider no ...

A-Pex Building

From £21,368

Need to find an Extension Builder near you for all your extension buildering work?

A-Pex Building provides a local, trusted extension build...

Flat roof extension cost in CT20

Estimates for build a flat roof extension near CT20

A flat roof extension ranges from the cheapest of £21,368 (A-Pex Building based in CT17) to the dearest of £21,936 (THE EAST CLIFF BUILDING CO LTD based in CT18), 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 CT20 by posting a job with HaMuch. We'll send it to extension builders in CT20.


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Estimates for common extension builder jobs in CT20;

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.

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