Extend your DA1 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 DA1? To see prices and availability for your job click green button.

HaMuch is Excellent

Build a flat roof extension cost in DA1 - Sort by rates or availability

From £22,392

Last active Aug 26
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Amberly Builders

Location

Dartford, DA1

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

From £22,168

Last active Feb 26
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PCO BUILDING SERVICES

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

From £22,008

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OAK BUILDERS

Location

Dartford, DA1

OAK BUILDERS is a trusted extension builder serving customers in DA1 and the surrounding area. Contact us to today to get a competitive quote for e...

From £22,216

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A Tutton Building Services Limited

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

A Tutton Building Services Limited provides a local, tru...

From £22,328

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AJW BUILDERS

Location

Dartford, DA1

AJW BUILDERS is a trusted extension builder serving customers in DA1 and the surrounding area. Contact us to today to get a competitive quote for e...

From £22,320

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ABAH Property Services Ltd

ABAH Property Services Ltd is a trusted extension builder serving customers in DA1 and the surrounding area. Contact us to today to get a competiti...

From £22,040

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Ideal Loft Ladders South East (SE) Ltd

Location

Dartford, DA1

Ideal Loft Ladders South East (SE) Ltd is an established extension buildering business in DA1. We come highly recommended and provide competitive q...

From £22,120

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ForsBuild Construction Ltd

ForsBuild Construction Ltd is a trusted extension builder serving customers in DA1 and the surrounding area. Contact us to today to get a competiti...

Flat roof extension cost in DA1

Estimates for build a flat roof extension near DA1

A flat roof extension ranges from the cheapest of £22,008 (OAK BUILDERS based in DA1) to the dearest of £22,392 (Amberly Builders based in DA1), 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 DA1 by posting a job with HaMuch. We'll send it to extension builders in DA1.


Estimates for common extension builder jobs in DA1;

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...