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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AJ Solutions

AJ Solutions is an established extension buildering business in CH5. We come highly recommended and provide competitive quotes for your work.

From £1,848

Last active Sep 26
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P WALKER JOINERY & BUILDING

Need an Extension Builder in CH5? P WALKER JOINERY & BUILDING has been helping local clients (20 mile radius) with their extension buildering jobs ...

From £2,128

Last active Nov 25
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K C MASSEY CONSTRUCTION LTD

Trusted and professional extension builder in CH5. Experienced in all extension buildering work and keeping within budget and on quote. K C MASSEY ...

From £1,864

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K Phillips Building & Maintenance

Relax... you have found a reliable extension builder in CH5. K Phillips Building & Maintenance is a friendly and reliable company based in CH5 who ...

From £2,072

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A M F BUILDING SERVICES

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

A M F BUILDING SERVICES provides a local, trusted extens...

From £2,024

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P M Harris Roofing and Joinery Services

P M Harris Roofing and Joinery Services is an established extension buildering business in CH5. We come highly recommended and provide competitive ...

RSJ cost in CH5

Estimates for install an rsj near CH5

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CH5 it ranges from £1,848 (P WALKER JOINERY & BUILDING based in CH5) to £2,256 (AJ Solutions based in CH1).

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 CH5 by posting a job with HaMuch and we will send it to extension builders in CH5.


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Estimates for common extension builder jobs in CH5;

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...