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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From £2,256

Last active Oct 26
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The Perfectionist

Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SW9. No obligation free quotes and m...

From £2,520

Last active Sep 26
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D & G Building & Decorating

Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in SW9. No obligation free qu...

From £2,176

Last active Sep 26
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A to Z Builders Ltd

A to Z Builders Ltd are here to help customers who need an Extension Builder in SW9. We offer a competitive rate to complete all your extension bui...

From £2,448

Last active Sep 26
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Cornerstones Construction

Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in SW9. No obligation free quot...

From £2,408

Last active Sep 26
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Vidanov Building Services

Trusted and professional extension builder in SW9. Experienced in all extension buildering work and keeping within budget and on quote. Vidanov Bui...

From £2,456

Last active Sep 26
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DUWIX BUILDING MAINTENANCE

DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in SW9. We offer a competitive rate to complete all your extens...

From £2,296

Last active Sep 26
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Building and Plastering Solution

Peter Cesma

Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services.  Public liabil...

From £2,456

Last active Aug 26
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F & F Building Services

F & F Building Services is an established extension buildering business in SW9. We come highly recommended and provide competitive quotes for your ...

From £2,216

Last active Jul 26
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R C BUILDER

R C BUILDER is a trusted extension builder serving customers in SW9 and the surrounding area. Contact us to today to get a competitive quote for ex...

From £2,280

Last active Jul 26
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Quality Carpentry

Quality Carpentry is a trusted extension builder serving customers in SW9 and the surrounding area. Contact us to today to get a competitive quote ...

RSJ cost in SW9

Estimates for install an rsj near SW9

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SW9 it ranges from £2,176 (A to Z Builders Ltd based in SW1P) to £2,520 (D & G Building & Decorating based in SW8).

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 SW9 by posting a job with HaMuch and we will send it to extension builders in SW9.


Estimates for common extension builder jobs in SW9;

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...