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 £2,408

Last active Oct 26
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Building Vision London Ltd

Building Vision London Ltd is a trusted extension builder serving customers in SW14 and the surrounding area. Contact us to today to get a competit...

From £2,648

Last active Oct 26
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AJ Wells

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

AJ Wells provides a local, trusted extension buildering ...

From £2,392

Last active Oct 26
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AG-Renovation Ltd

AG-Renovation Ltd is a trusted extension builder serving customers in SW14 and the surrounding area. Contact us to today to get a competitive quote...

From £2,336

Last active Sep 26
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KEVIN GEAR BUILDING & MAINTIAN

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

From £2,616

Last active Sep 26
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Andy Harris Construction

Andy Harris

Andy Harris Construction is an established and experienced local extension builder in SW14. Please contact us for a free, no obligation quote and c...

From £2,168

Last active Aug 26
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Embury Building Services Ltd

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

Embury Building Services Ltd provides a local, trusted e...

From £2,600

Last active Apr 26
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Specialist Screeding

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

From £2,128

Last active Apr 26
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True Linear

True Linear

Relax... you have found a reliable extension builder in SW14. True Linear is a friendly and reliable company based in SW14 who consider no job as t...

From £2,424

Last active Jan 26
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Julia Property Refurbishment

Experienced extension builder ready to quote for your work. Julia Property Refurbishment is the best extension builder in SW14. No obligation free ...

From £2,352

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Good Design and Build

Good Design and Build are here to help customers who need an Extension Builder in SW14. We offer a competitive rate to complete all your extension ...

RSJ cost in SW14

Estimates for install an rsj near SW14

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SW14 it ranges from £2,128 (True Linear based in sw13) to £2,648 (AJ Wells based in SW15).

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 SW14 by posting a job with HaMuch and we will send it to extension builders in SW14.


Estimates for common extension builder jobs in SW14;

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...