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

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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 £22,480

Last active Sep 26

1 review

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Vpbuildesign Ltd

Vlad Potapov

New build, complete refurbishment and renovation service. We provide a quality turnkey service in Central London , South West London 

"Vpbuildesign installed a kitchen and bathroom at my property and did an absolutely excellent job. I could not have asked for better and would definitely recommend giving them the opportunity to complete any building work required as I found the work to be exceptional." - reviewed 21/06/23, LUCAS REID

From £22,408

Last active Sep 26
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Garage Door Repairs

Location

Dorking, RH4

Garage Door Repairs is an established extension buildering business in Dorking. We come highly recommended and provide competitive quotes for your ...

From £21,968

Last active Sep 26
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D B Jones Builder

Trusted and professional extension builder in Dorking. 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 £22,216

Last active Apr 26
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CONTRACTBUILD LTD

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

From £21,936

Last active Mar 26
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DE SELINCOURT CONSTRUCTION

Trusted and professional extension builder in Dorking. Experienced in all extension buildering work and keeping within budget and on quote. DE SELI...

Flat roof extension cost in Dorking

Estimates for build a flat roof extension near Dorking

A flat roof extension ranges from the cheapest of £21,792 (REIGATE MARBLE SHOP based in RH2) to the dearest of £22,480 (Vpbuildesign Ltd based in KT11), 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 Dorking by posting a job with HaMuch. We'll send it to extension builders in Dorking.


Estimates for common extension builder jobs in Dorking;

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...