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.

HaMuch is Excellent

Install an RSJ cost in S17 - Sort by rates or availability

From £2,288

(last active 03/10/26)
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Hallamshire Paving

Hallamshire Paving is an established and experienced local extension builder in S17. Please contact us for a free, no obligation quote and competit...

From £2,544

(last active 03/10/26)
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AMB Joinery & Building Services

Trusted and professional extension builder in S17. Experienced in all extension buildering work and keeping within budget and on quote. AMB Joinery...

From £2,208

(last active 02/10/26)
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A Field Construction LTD

Andrew Field

We are a family run business with 20 years experience.

We take great care and attention to the work we carry out and pride ourselves on ...

From £2,136

(last active 08/09/26)
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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 08/09/26)
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JON WINDLE CONSTRUCTION

Jon Windle

46 years in the trade

From £2,312

(last active 08/09/26)
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Premier Lofts

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 S17. Experienced in all extension buildering work and keeping within budget and on quote. R S Heating...

From £2,464

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Unity Development Group

Unity Development Group is a trusted extension builder serving customers in S17 and the surrounding area. Contact us to today to get a competitive ...

From £2,272

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Cortworth Millhouse Design & Build

Need an Extension Builder in S17? 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 S17. Please contact us for a free, no obligation quote and ...

RSJ cost in S17

Estimates for install an rsj near S17

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in S17 it ranges from £1,488 (JON WINDLE CONSTRUCTION based in S17) to £2,544 (AMB Joinery & Building Services based in S8).

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 S17 by posting a job with HaMuch and we will send it to extension builders in S17.

"RSJ installation" - SHEFFIELD, job posted 01/01/70


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Install An RSJ near Dronfield£33£262
Install An RSJ near Sheffield£32£261
Install An RSJ near Chesterfield£33£257
Install An RSJ near Rotherham£33£257
Install An RSJ near Wickersley£33£257
Install An RSJ near Buxton£32£250
Install An RSJ near Worksop£33£265
Install An RSJ near Barnsley£31£242
Install An RSJ near Alfreton£34£261
Install An RSJ near Sutton-in-Ashfield£33£264

Estimates for common extension builder jobs in S17;

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...