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

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From £22,800

Rates updated Oct 26
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OAK HOUSE BESPOKE BUILDERS

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

OAK HOUSE BESPOKE BUILDERS provides a local, trusted ext...

From £22,408

Last active Nov 26
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Brick House Builders Ltd

Jatinder Kahlon

Hi, I’m Jatinder. I’m a qualified electrician and gas safe registered professional with 10 years of experience in the trade. We specialise in l...

From £22,312

Last active Oct 26
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Luxuria Property Ltd

From 2007 – 2015 David Rudelhoff (Founder and Director) was the Property Manager for a high profile, high net worth family. During that time, in ...

From £22,440

Last active Oct 26
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GDC Design & Build

Lead by designer Richard Gordon, GDC is a London and Berkshire based Design & Build firm with a vast amount of experience in both the residential a...

From £21,976

Last active Oct 26
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R & R Roofing Guildford

Russell Worcester

R & R Roofing Guildford are here to help customers who need an Extension Builder in Addlestone. We offer a competitive rate to complete all your ex...

From £22,048

Last active Oct 26
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Chim Me Sweep Chim Me Build

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

Chim Me Sweep Chim Me Build provides a local, trusted ex...

From £22,056

Last active Oct 26
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DILCONSI CONSTRUCTION

Relax... you have found a reliable extension builder in Addlestone. DILCONSI CONSTRUCTION is a friendly and reliable company based in Addlestone wh...

From £21,760

Last active Oct 26
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We Fix & Upkeep Ltd

Cosmin-Adrian Aporcariti

We are a company based in South London, with a strong will to work and to do the best job possible every tine we start a job (big or small) because...

From £22,240

Last active Oct 26
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PURE DESIGN AND BUILD

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

From £22,008

Last active Oct 26
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GS Wood Building Services

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

GS Wood Building Services provides a local, trusted exte...

Flat roof extension cost in Addlestone

Estimates for build a flat roof extension near Addlestone

A flat roof extension ranges from the cheapest of £21,760 (We Fix & Upkeep Ltd based in KT16) to the dearest of £22,800 (OAK HOUSE BESPOKE BUILDERS based in KT9), 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 Addlestone by posting a job with HaMuch. We'll send it to extension builders in Addlestone.


Estimates for common extension builder jobs in Addlestone;

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...