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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Available extension builders in EC4N reply

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From £2,224

Last active Nov 26
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SH Enterprise

Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...

From £2,392

Last active Oct 26

1 review

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Torrington

Torrington Design

NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...

"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO

From £2,576

Last active Sep 26
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CK Constructions & Development Ltd

CK Constructions & Development Ltd is a trusted extension builder serving customers in EC4N and the surrounding area. Contact us to today to get a ...

From £2,128

Last active Sep 26
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GS Fabric Ltd

GS Fabric Ltd is an established and experienced local extension builder in EC4N. Please contact us for a free, no obligation quote and competitive ...

From £2,240

Last active Sep 26
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JM Building Services

JM Building Services is a trusted extension builder serving customers in EC4N and the surrounding area. Contact us to today to get a competitive qu...

From £2,416

Last active Aug 26
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Buildwiser

Buildwiser is a trusted extension builder serving customers in EC4N and the surrounding area. Contact us to today to get a competitive quote for ex...

From £2,520

Last active Jul 26
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Renobuild Group

Daniel Dixon

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

Renobuild Group provides a local, trusted extension buil...

From £2,624

Last active May 26
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AAA Design Decorators

AAA Design Decorators are here to help customers who need an Extension Builder in EC4N. We offer a competitive rate to complete all your extension ...

From £2,224

Last active Feb 26
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AGRI CONSTRUCTION

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

AGRI CONSTRUCTION provides a local, trusted extension bu...

From £2,416

Last active Jan 26
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AB Building Maintainance

Trusted and professional extension builder in EC4N. Experienced in all extension buildering work and keeping within budget and on quote. AB Buildin...

RSJ cost in EC4N

Estimates for install an rsj near EC4N

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in EC4N it ranges from £2,128 (GS Fabric Ltd based in E2) to £2,624 (AAA Design Decorators based in SE17).

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 EC4N by posting a job with HaMuch and we will send it to extension builders in EC4N.


Estimates for common extension builder jobs in EC4N;

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...