From £2,056
Relax... you have found a reliable extension builder in S25. Tep's Building Services is a friendly and reliable company based in S25 who consider n...
From £2,384
Trusted and professional extension builder in S25. Experienced in all extension buildering work and keeping within budget and on quote. Maison Frai...
From £2,104
Looking to Transform Your Home Space?Maison Frais are Space Solution Specialists based in S. Yorkshire. We help TRANSFORM people's family homes to ...
From £2,472
If you are looking for a block-paving specialist Random Stone Construction can help. We have been transforming driveways for 15 ye...
From £2,152
Our building services company AJ Construction was established in 2008. Since then we have been helping customers in Nottinghamshire and the surroun...
From £2,336
S. & A. Parsons (Building Contractors) Limited is a trusted extension builder serving customers in S25 and the surrounding area. Contact us to toda...
From £2,296
Trusted and professional extension builder in S25. Experienced in all extension buildering work and keeping within budget and on quote. urmum.co ha...
From £2,040
Trusted and professional extension builder in S25. Experienced in all extension buildering work and keeping within budget and on quote. Britishbuil...
From £2,168
Relax... you have found a reliable extension builder in S25. CS Construction & Conversions is a friendly and reliable company based in S25 who cons...
From £2,304
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in S25 it ranges from £2,040 (Britishbuildogs based in S65) to £2,472 (Random Stone Construction based in S81).
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 S25 by posting a job with HaMuch and we will send it to extension builders in S25.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Wickersley | £29 | £224 |
| Install An RSJ near Worksop | £29 | £233 |
| Install An RSJ near Rotherham | £29 | £226 |
| Install An RSJ near Bassetlaw | £28 | £214 |
| Install An RSJ near Sheffield | £30 | £246 |
| Install An RSJ near Doncaster | £26 | £208 |
| Install An RSJ near Retford | £28 | £214 |
| Install An RSJ near Dronfield | £31 | £253 |
| Install An RSJ near Chesterfield | £29 | £225 |
| Install An RSJ near Mansfield Woodhouse | £29 | £227 |
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 - £17,531

Two storey extension - £88,047

Build a timber frame extension - £26,031

Build a swimming pool - £81,031

Single storey extension - £55,624

Side return extension - £41,851

Install an RSJ - £2,231

Outbuilding - £10,031

Build a Mansard loft conversion - £52,031

Loft conversion - £34,043

Build a kitchen extension - £42,031

Hip to gable loft conversion - £42,031

Granny annexe - £87,031

Garden office - £10,031

Convert a Garage - £16,031

Garage - £18,531

Build a flat roof extension - £22,031

Build a dormer loft conversion - £42,031

Concrete foundations - £6,281

Convert a bungalow loft - £29,031

Convert a basement - £37,851