Extend your DN31 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 DN31? To see prices and availability for your job click green button.

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From £21,776

Last active Oct 26
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A F Beckett

Need an Extension Builder in DN31? A F Beckett has been helping local clients (20 mile radius) with their extension buildering jobs for many years....

From £22,040

Last active Apr 26
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Paul Wallis Building & Joinery Ltd

From building preservation to extensions in Grimsby, we have the skills and experience you need. We undertake a very wide selection of wor...

Flat roof extension cost in DN31

Estimates for build a flat roof extension near DN31

A flat roof extension ranges from the cheapest of £21,776 (A F Beckett based in DN32) to the dearest of £22,040 (Paul Wallis Building & Joinery Ltd based in DN32), 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 DN31 by posting a job with HaMuch. We'll send it to extension builders in DN31.


Estimates for common extension builder jobs in DN31;

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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