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 £2,760

Last active Oct 26
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Rafix Building

Rafal Szczepanski

Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...

From £2,144

Last active Oct 26
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New Finishes

New Finishes is a trusted extension builder serving customers in EN5 and the surrounding area. Contact us to today to get a competitive quote for e...

From £2,408

Last active Oct 26
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Homeland Building Ltd

Homeland Building Ltd is a trusted extension builder serving customers in EN5 and the surrounding area. Contact us to today to get a competitive qu...

From £2,256

Last active Oct 26
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Wittick Building Ltd

Wittick Building Ltd is a trusted extension builder serving customers in EN5 and the surrounding area. Contact us to today to get a competitive quo...

From £2,408

Last active Sep 26
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Roni Lofts Conversions Ltd

Need an Extension Builder in EN5? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension buildering jobs f...

From £2,632

Last active Aug 26
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Odp Builders

Need an Extension Builder in EN5? Odp Builders has been helping local clients (5 mile radius) with their extension buildering jobs for many years. ...

From £1,912

Last active Jul 26
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J&K Expert Building Services

Jacek Pobiedzinski

Location

Barnet, EN5

Right people 

From £2,488

Last active Jul 26
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D.J Coyle & Co.Ltd

Trusted and professional extension builder in EN5. Experienced in all extension buildering work and keeping within budget and on quote. D.J Coyle &...

From £2,120

Last active Jun 26
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WOODVALLEY BUILDERS LTD

Location

High Barnet, EN5

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

WOODVALLEY BUILDERS LTD provides a local, trusted extens...

From £2,232

Last active Jun 26
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A Sparky Technical Building Services

Relax... you have found a reliable extension builder in EN5. A Sparky Technical Building Services is a friendly and reliable company based in EN5 w...

RSJ cost in EN5

Estimates for install an rsj near EN5

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in EN5 it ranges from £1,912 (J&K Expert Building Services based in EN5) to £2,760 (Rafix Building based in EN4).

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 EN5 by posting a job with HaMuch and we will send it to extension builders in EN5.


Estimates for common extension builder jobs in EN5;

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...