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 £2,544

Last active Nov 26
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AMB Joinery & Building Services

Trusted and professional extension builder in S18. Experienced in all extension buildering work and keeping within budget and on quote. AMB Joinery...

From £2,136

Last active Sep 26
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Dore Decor

Dore Decor are a family run business with over 30 years experience - we offer an extensive range of building services and are able to provide a ful...

From £1,488

Last active Sep 26
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JON WINDLE CONSTRUCTION

Jon Windle

46 years in the trade

From £2,568

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Compton Spares.com

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

From £2,168

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R S Heating & Building Co

Trusted and professional extension builder in S18. Experienced in all extension buildering work and keeping within budget and on quote. R S Heating...

From £2,592

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Peak Roof Clean

Peak Roofclean offer an inexpensive way of permanently keeping your roof free of moss, lichens and algae. Not only is it 100% effective but...

From £2,272

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Cortworth Millhouse Design & Build

Need an Extension Builder in S18? Cortworth Millhouse Design & Build has been helping local clients (20 mile radius) with their extension builderin...

From £2,536

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Blenheim Park Developments

Blenheim Park Developments is an established and experienced local extension builder in S18. Please contact us for a free, no obligation quote and ...

RSJ cost in S18

Estimates for install an rsj near S18

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in S18 it ranges from £1,488 (JON WINDLE CONSTRUCTION based in S17) to £2,592 (Peak Roof Clean based in S42).

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 S18 by posting a job with HaMuch and we will send it to extension builders in S18.


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Estimates for common extension builder jobs in S18;

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...