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 £2,584

Last active Oct 26
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CJC BUILDERS

Trusted and professional extension builder in KT18. Experienced in all extension buildering work and keeping within budget and on quote. CJC BUILDE...

From £2,528

Last active Sep 26
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J Stevens Roofing & Guttering

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

From £2,416

Last active Apr 26
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CONTRACTBUILD LTD

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

From £2,136

Last active Mar 26
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DE SELINCOURT CONSTRUCTION

Trusted and professional extension builder in KT18. Experienced in all extension buildering work and keeping within budget and on quote. DE SELINCO...

From £2,512

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S JEFFEREY BUILDERS

Experienced extension builder ready to quote for your work. S JEFFEREY BUILDERS is the best extension builder in KT18. No obligation free quotes an...

From £2,488

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SAS Build

SAS Build are here to help customers who need an Extension Builder in KT18. We offer a competitive rate to complete all your extension buildering j...

From £2,072

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ARCHERY BUILDING SERVICES LTD

Nicky King

Over 30 years experience in carpentery. Have carried a a number of extensions and refurbishments in the surrey aera. Have a large number of satisfi...

From £2,080

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ANM BUILDERS LTD

Experienced extension builder ready to quote for your work. ANM BUILDERS LTD is the best extension builder in KT18. No obligation free quotes and m...

From £1,760

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Priority Roofbuild Ltd

AArron Doyle

Experienced extension builder ready to quote for your work. Priority Roofbuild Ltd is the best extension builder in KT18. No obligation free quotes...

From £3,080

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London Bespoke Build

Need an Extension Builder in KT18? London Bespoke Build has been helping local clients (10 mile radius) with their extension buildering jobs for ma...

RSJ cost in KT18

Estimates for install an rsj near KT18

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in KT18 it ranges from £1,760 (Priority Roofbuild Ltd based in KT17) to £3,080 (London Bespoke Build based in KT20).

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 KT18 by posting a job with HaMuch and we will send it to extension builders in KT18.


Estimates for common extension builder jobs in KT18;

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...