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

Location

Cockfosters, EN4

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 EN4 and the surrounding area. Contact us to today to get a competitive quote for e...

From £2,576

Last active Oct 26
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Pavillion Building Services

Location

Cockfosters, EN4

Relax... you have found a reliable extension builder in EN4. Pavillion Building Services is a friendly and reliable company based in EN4 who consid...

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 EN4 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

Location

Cockfosters, EN4

Wittick Building Ltd is a trusted extension builder serving customers in EN4 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 EN4? 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 EN4? Odp Builders has been helping local clients (5 mile radius) with their extension buildering jobs for many years. ...

From £2,784

Last active Aug 26
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Homeworks Design & Build Ltd

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

From £2,488

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

Trusted and professional extension builder in EN4. Experienced in all extension buildering work and keeping within budget and on quote. D.J Coyle &...

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 EN4. A Sparky Technical Building Services is a friendly and reliable company based in EN4 w...

RSJ cost in EN4

Estimates for install an rsj near EN4

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in EN4 it ranges from £2,144 (New Finishes based in EN4) to £2,784 (Homeworks Design & Build Ltd based in N20).

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 EN4 by posting a job with HaMuch and we will send it to extension builders in EN4.


Estimates for common extension builder jobs in EN4;

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...