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

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From £22,016

Last active Oct 26
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GMS Carpentry & build

Grant Singleton

Trusted and professional extension builder in Hampshire. Experienced in all extension buildering work and keeping within budget and on quote. GMS C...

From £23,200

Last active Oct 26
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Wade and Son Builders

Mark Wadeson

Building extensions and conversions - commercial and domesticstructural repairsgroundworksdrainage workspaving, patios and concreti...

From £22,504

Last active Oct 26
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Zeneli Builders

Hugo Zeneli

Very good all round builders all work  guarantees 

From £22,160

Last active Oct 26
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J.V MARSTON BUILDERS

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

J.V MARSTON BUILDERS provides a local, trusted extension...

From £21,808

Last active Oct 26
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Sky Builders

Sky Builders is a trusted extension builder serving customers in Hampshire and the surrounding area. Contact us to today to get a competitive quote...

From £21,944

Last active Oct 26
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C&M Roofing

Experienced extension builder ready to quote for your work. C&M Roofing is the best extension builder in Hampshire. No obligation free quotes and m...

From £22,224

Last active Sep 26
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Elmer Building Services ltd

Richard Elemr

Elmer Building Services ltd is an established extension buildering business in Hampshire. We come highly recommended and provide competitive quotes...

From £21,904

Last active Jul 26
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PINEVALE BUILDING

Experienced extension builder ready to quote for your work. PINEVALE BUILDING is the best extension builder in Hampshire. No obligation free quotes...

From £21,944

Last active Jul 26
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GOTHIC CONSTRUCTION LTD

GOTHIC CONSTRUCTION LTD is an established and experienced local extension builder in Hampshire. Please contact us for a free, no obligation ...

From £22,072

Last active Jun 26
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PAUL BELTON CONSTRUCTION

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

Flat roof extension cost in Hampshire

Estimates for build a flat roof extension near Hampshire

A flat roof extension ranges from the cheapest of £21,808 (Sky Builders based in BH8) to the dearest of £23,200 (Wade and Son Builders based in bh22), 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 Hampshire by posting a job with HaMuch. We'll send it to extension builders in Hampshire.


Estimates for common extension builder jobs in Hampshire;

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...