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 £2,096

Last active May 26
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S & A W Joinery & Construction

S & A W Joinery & Construction is a trusted extension builder serving customers in DH9 and the surrounding area. Contact us to today to get a compe...

From £2,360

Last active Jan 26
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Derwent View Roofing

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

Derwent View Roofing provides a local, trusted extension...

From £2,032

Last active Jan 26
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L F BUILDING & JOINERY

Experienced extension builder ready to quote for your work. L F BUILDING & JOINERY is the best extension builder in DH9. No obligation free quotes ...

From £2,112

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Spacesaver Loft Storage

Need an Extension Builder in DH9? Spacesaver Loft Storage has been helping local clients (20 mile radius) with their extension buildering jobs for ...

From £2,472

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Lighthouse North East Limited

Paul Curry

We have 20+ years experience through all trades supplied.

Yes, we are an Advanced Vaillant installer.

Yes we are members of S...

RSJ cost in DH9

Estimates for install an rsj near DH9

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DH9 it ranges from £2,032 (L F BUILDING & JOINERY based in DH2) to £2,472 (Lighthouse North East Limited based in DH9).

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 DH9 by posting a job with HaMuch and we will send it to extension builders in DH9.


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Estimates for common extension builder jobs in DH9;

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...