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 £2,224

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 £2,176

Last active Nov 26
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SLS BUILDERS LIMITED

SLS BUILDERS LIMITED is a trusted extension builder serving customers in Fetter Lane and the surrounding area. Contact us to today to get a competi...

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 £2,392

Last active Oct 26
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London Trowel Co.

Relax... you have found a reliable extension builder in Fetter Lane. London Trowel Co. is a friendly and reliable company based in Fetter Lane who ...

From £2,408

Last active Oct 26
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Thermodynamic Building Services Ltd

Trusted and professional extension builder in Fetter Lane. Experienced in all extension buildering work and keeping within budget and on quote. The...

From £4,520

Last active Oct 26
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Reid and Co Developments Ltd

Jay Reid

We are a well established buildng firm who have been providing building services and managing of projects now for 25 years. We have all the necessary ...

From £2,384

Last active Sep 26
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First guard Roofing

Darren Bergin

Relax... you have found a reliable extension builder in Fetter Lane. First guard Roofing is a friendly and reliable company based in Fetter Lane wh...

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 Fetter Lane and the surrounding area. Contact us to today to...

From £2,176

Last active Sep 26
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A to Z Builders Ltd

A to Z Builders Ltd are here to help customers who need an Extension Builder in Fetter Lane. We offer a competitive rate to complete all your exten...

From £2,448

Last active Sep 26
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Cornerstones Construction

Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Fetter Lane. No obligation f...

RSJ cost in Fetter Lane

Estimates for install an rsj near Fetter Lane

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Fetter Lane it ranges from £2,176 (SLS BUILDERS LIMITED based in NW5) to £4,520 (Reid and Co Developments Ltd based in NW8).

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


Estimates for common extension builder jobs in Fetter Lane;

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...