Find a builder to make your building structurally sound

RSJs support your new extension or other construction to ensure that your property is structurally sound. They are crucial parts of your building work that mustn't be ignored, and must be installed by a professional.  To see prices and availability for your job click green button.

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Available extension builders in South Cambridgeshire reply

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From £3,000

Rates updated Oct 26
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J & N Contracts Cambs Ltd

J & N Contracts Cambs Ltd is an established and experienced local extension builder in South Cambridgeshire. Please contact us for a free, no oblig...

From £2,584

Last active Oct 26
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Fenlake Construction

Comprehensive, Intelligent Construction Service offering Domestic and Commercial Buildings, Barn, Basement and Loft Conversions, Renovation & Refur...

From £2,352

Last active Oct 26
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CROWNBUILD

Relax... you have found a reliable extension builder in South Cambridgeshire. CROWNBUILD is a friendly and reliable company based in South Cambridg...

From £2,664

Last active Oct 26
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Rescapes Construction Ltd

Trusted and professional extension builder in South Cambridgeshire. Experienced in all extension buildering work and keeping within budget and on q...

From £2,408

Last active Oct 26
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M Woolfe Builders & Carpenters

Mickey Woolfe

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

M Woolfe Builders & Carpenters provides a local, trusted...

From £2,272

Last active Aug 26
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ECO DESIGN & BUILD (UK) LTD

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

From £3,560

Last active Aug 26
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ALLIED BUILDING ASSOCIATES LTD

Experienced extension builder ready to quote for your work. ALLIED BUILDING ASSOCIATES LTD is the best extension builder in South Cambridgeshire. N...

From £2,272

Last active Mar 26
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D Stebbings

Relax... you have found a reliable extension builder in South Cambridgeshire. D Stebbings is a friendly and reliable company based in South Cambrid...

From £2,608

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Louise Swarbrick Design

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

Louise Swarbrick Design provides a local, trusted extens...

From £2,576

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Beaumont Construction

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

RSJ cost in South Cambridgeshire

Estimates for install an rsj near South Cambridgeshire

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in South Cambridgeshire it ranges from £2,272 (ECO DESIGN & BUILD (UK) LTD based in SG8) to £3,560 (ALLIED BUILDING ASSOCIATES LTD based in CB22).

Comparing extension builders estimates for fitting an RSJ 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 install an RSJ in South Cambridgeshire by posting a job with HaMuch and we will send it to extension builders in South Cambridgeshire.


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Estimates for common extension builder jobs in South Cambridgeshire;

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...