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

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From £22,080

Last active Oct 26
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D & R Roofing & Loft Conversions, Building & Design

Relax... you have found a reliable extension builder in Redhill. D & R Roofing & Loft Conversions, Building & Design is a friendly and reliable com...

From £22,064

Last active Oct 26
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All-in-one group services ltd

David Roberts

From £22,328

Last active Sep 26
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J Stevens Roofing & Guttering

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

From £22,272

Last active Sep 26
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DPP Construction (David Price Partnership)

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

DPP Construction (David Price Partnership) provides a lo...

From £21,968

Last active Sep 26
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D B Jones Builder

Trusted and professional extension builder in Redhill. Experienced in all extension buildering work and keeping within budget and on quote. D B Jon...

From £21,792

Last active Sep 26
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REIGATE MARBLE SHOP

ALBANA PERANA

The Reigate Marble Shop LTD.

Established in 2005, The Reigate Marble Shop...

From £22,152

Last active Sep 26
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Clarkes General Builders

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

From £22,224

Last active Sep 26
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S C H BUILDING SERVICES

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

S C H BUILDING SERVICES provides a local, trusted extens...

From £21,864

Last active Jun 26
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Crawley Construction Ltd

Crawley Construction Ltd

Contact us: 07454160840 Email: enquiries@ We are a family run business since 15 year’s+. We are build on tru...

From £21,880

Last active May 26
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J S Nisbet Loft Conversions

J S Nisbet Loft Conversions are here to help customers who need an Extension Builder in Redhill. We offer a competitive rate to complete all your e...

Flat roof extension cost in Redhill

Estimates for build a flat roof extension near Redhill

A flat roof extension ranges from the cheapest of £21,792 (REIGATE MARBLE SHOP based in RH2) to the dearest of £22,328 (J Stevens Roofing & Guttering based in KT18), 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 Redhill by posting a job with HaMuch. We'll send it to extension builders in Redhill.


Estimates for common extension builder jobs in Redhill;

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...