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

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From £21,784

Last active Oct 26
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D Parker Design & Build

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

D Parker Design & Build provides a local, trusted extens...

From £21,624

Last active Oct 26
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WM Brickwork & Pointing

WM Brickwork & Pointing are here to help customers who need an Extension Builder in Darwen. We offer a competitive rate to complete all your extens...

From £21,848

Last active Oct 26
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Darren Gaynor

Darren Gaynor is a trusted extension builder serving customers in Darwen and the surrounding area. Contact us to today to get a competitive quote f...

From £21,936

Last active Oct 26
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Garry Ryan Property Repairs

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

From £21,856

Last active Oct 26
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SMH Joinery & Building

Experienced extension builder ready to quote for your work. SMH Joinery & Building is the best extension builder in Darwen. No obligation free quot...

From £21,808

Last active Oct 26
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J. Grimshaw

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

J. Grimshaw provides a local, trusted extension builderi...

From £21,728

Last active Oct 26
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Lonsdale Construction

Lonsdale Construction is a trusted extension builder serving customers in Darwen and the surrounding area. Contact us to today to get a competitive...

From £21,720

Last active Oct 26
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PREMIER CONSTRUCTION T/A

Ash

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

From £21,896

Last active Sep 26
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J & C Barker (Builders) Limited

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

J & C Barker (Builders) Limited provides a local, truste...

From £21,632

Last active Sep 26
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Fishers Building & Paving Ltd

Fishers Building & Paving Ltd is an established extension buildering business in Darwen. We come highly recommended and provide competitive quotes ...

Flat roof extension cost in Darwen

Estimates for build a flat roof extension near Darwen

A flat roof extension ranges from the cheapest of £21,624 (WM Brickwork & Pointing based in BB1) to the dearest of £21,936 (Garry Ryan Property Repairs based in BB1), 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 Darwen by posting a job with HaMuch. We'll send it to extension builders in Darwen.


Estimates for common extension builder jobs in Darwen;

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...