Hallamshire Paving is an established and experienced local extension builder in S17. Please contact us for a free, no obligation quote and competit...
Trusted and professional extension builder in S17. Experienced in all extension buildering work and keeping within budget and on quote. AMB Joinery...
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 ...
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...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,168
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
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
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
Blenheim Park Developments is an established and experienced local extension builder in S17. Please contact us for a free, no obligation quote and ...

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
| Location in UK | Hourly Rate | Daily 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 |
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.

Underpin a building - £17,542

Two storey extension - £88,062

Build a timber frame extension - £26,042

Build a swimming pool - £81,042

Single storey extension - £55,832

Side return extension - £41,968

Install an RSJ - £2,242

Outbuilding - £10,042

Build a Mansard loft conversion - £52,042

Loft conversion - £34,140

Build a kitchen extension - £42,042

Hip to gable loft conversion - £42,042

Granny annexe - £87,042

Garden office - £10,042

Convert a Garage - £16,042

Garage - £18,542

Build a flat roof extension - £22,042

Build a dormer loft conversion - £42,042

Concrete foundations - £6,292

Convert a bungalow loft - £29,042

Convert a basement - £37,968