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 Get quotes.

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Install an RSJ cost in SG17 - Sort by rates or availability

From £2,048

(last active 04/06/26)
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R&J Building Services Ltd

Need an Extension Builder in SG17? R&J Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering jobs f...

From £2,392

(last active 31/03/26)
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TCL BUILDING SOLUTIONS LTD

TCL BUILDING SOLUTIONS LTD are here to help customers who need an Extension Builder in SG17. We offer a competitive rate to complete all your exten...

From £2,560

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Specialist Building Refurbishm

Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in SG17. No obligation fre...

From £2,472

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Prive Consultancy Ltd

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

From £2,528

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David Douglas Developments

Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...

From £2,752

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Blue Conker Ltd

Blue Conker are dedicated to creating spaces for you to enjoy living. From the planning stages through to the finishing touches, our team of profes...

RSJ cost in SG17

Estimates for install an rsj near SG17

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SG17 it ranges from £2,048 (R&J Building Services Ltd based in SG17) to £2,752 (Blue Conker Ltd based in MK45).

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 SG17 by posting a job with HaMuch and we will send it to extension builders in SG17.


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Estimates for common extension builder jobs in SG17;

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...