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 Get quotes.

HaMuch is Excellent

Install an RSJ cost in B94 - Sort by rates or availability

From £2,264

(last active 05/09/26)
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MYBUILD

Ben Birch

I have been in the building industry for 28 years and have carried out extensions,loft conversions, knock throughs, plastering, carpentry,roofing a...

From £2,128

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JEWEL BUILDERS LTD

JEWEL BUILDERS LTD are here to help customers who need an Extension Builder in B94. We offer a competitive rate to complete all your extension buil...

RSJ cost in B94

Estimates for install an rsj near B94

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in B94 it ranges from £2,128 (JEWEL BUILDERS LTD based in B93) to £2,264 (MYBUILD based in B93).

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 B94 by posting a job with HaMuch and we will send it to extension builders in B94.

"Total cost of structural engineer report, supply and install 6M RSJ for a load bearing wall to make kitchen/diner." - B90, job posted 01/11/25

"RSJ installation" - B90, job posted 03/08/26


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Estimates for common extension builder jobs in B94;

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...