Use sustainable materials and save money on your new extension

Timber frame extensions are becoming more and more popular as people understand their thermal properties, cost-effectiveness and general sustainability. Built quicker than masonry frame extensions, they generally cost less and can support a variety of design elements to help you create your dream extension. But how much will a timber frame extension cost in B20? To see prices and availability for your job click Get quotes.

HaMuch is Excellent

Build a timber frame extension cost in B20 - Sort by rates or availability

From £25,704

(last active 29/09/26)
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AJ Home Improvements

AJ Home Improvements is an established extension buildering business in B20. We come highly recommended and provide competitive quotes for your wor...

From £25,984

(last active 29/09/26)
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Atwal Building Services Ltd

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

Atwal Building Services Ltd provides a local, trusted ex...

From £25,984

(last active 29/09/26)
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Brickfast Builders

Brickfast Builders is an established extension buildering business in B20. We come highly recommended and provide competitive quotes for your work....

From £25,568

(last active 25/09/26)
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Bhogal Construction

Trusted and professional extension builder in B20. Experienced in all extension buildering work and keeping within budget and on quote. Bhogal Cons...

From £25,864

(last active 25/09/26)
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LC BUILDING SERVICES

Lloyd Clarke

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

LC BUILDING SERVICES provides a local, trusted extension...

From £25,840

(last active 25/09/26)
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MD Services

Relax... you have found a reliable extension builder in B20. MD Services is a friendly and reliable company based in B20 who consider no job as too...

From £25,568

(last active 15/09/26)
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Dave Mattock

Dave Mattock is an established and experienced local extension builder in B20. Please contact us for a free, no obligation quote and competitive ra...

From £25,944

(last active 15/09/26)
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D&J Advanced Builders

Need an Extension Builder in B20? D&J Advanced Builders has been helping local clients (20 mile radius) with their extension buildering jobs for ma...

From £26,128

(last active 10/07/26)
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Sanwood

Sanj Sandhu

Relax... you have found a reliable extension builder in B20. Sanwood is a friendly and reliable company based in B20 who consider no job as too big...

From £25,920

(last active 27/11/25)
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x10hosts

Experienced extension builder ready to quote for your work. x10hosts is the best extension builder in B20. No obligation free quotes and many happy...

Timber frame extension cost in B20

Estimates for build a timber frame extension near B20

A timber frame extension built in B20 typically ranges from £25,568 (Bhogal Construction based in B67) to £26,128 (Sanwood based in B73), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.

Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.

Get rates and quotes to build a timber frame extension in B20 by posting a job with HaMuch and we'll send it to extension builders in B20.


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Estimates for common extension builder jobs in B20;

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...