Extend your Gainsborough 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 Gainsborough? To see prices and availability for your job click green button.

HaMuch is Excellent

Build a flat roof extension cost in Gainsborough - Sort by rates or availability

From £21,808

Last active Jun 26
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LFC Builders

Relax... you have found a reliable extension builder in Gainsborough. LFC Builders is a friendly and reliable company based in Gainsborough who con...

From £21,928

Last active Apr 26
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CRAIG PARR BUILDERS

CRAIG PARR BUILDERS is an established extension buildering business in Gainsborough. We come highly recommended and provide competitive quotes for ...

From £21,640

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C L CORFIELD LIMITED

Nigel Corfield

C.L.Corfield Ltd are a well estblished (1963) family run business, who take great pride in providing a quality service. Our services over the years...

Flat roof extension cost in Gainsborough

Estimates for build a flat roof extension near Gainsborough

A flat roof extension ranges from the cheapest of £21,640 (C L CORFIELD LIMITED based in DN9) to the dearest of £21,928 (CRAIG PARR BUILDERS based in DN21), 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 Gainsborough by posting a job with HaMuch. We'll send it to extension builders in Gainsborough.


Estimates for common extension builder jobs in Gainsborough;

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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