From £2,080
RJH Building Services is a trusted extension builder serving customers in S41 and the surrounding area. Contact us to today to get a competitive qu...
From £2,568
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,128
Relax... you have found a reliable extension builder in S41. Palace Roofline Ltd is a friendly and reliable company based in S41 who consider no jo...
From £2,200
Need an Extension Builder in S41? D H Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
From £2,536
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,472
R.J Building Services is an established extension buildering business in S41. We come highly recommended and provide competitive quotes for your wo...
From £2,136
Trusted and professional extension builder in S41. Experienced in all extension buildering work and keeping within budget and on quote. Merebrook C...
From £2,088
JWM Building Services is a trusted extension builder serving customers in S41 and the surrounding area. Contact us to today to get a competitive qu...
From £2,056
C ROWLEY (SELFBUILD) is an established and experienced local extension builder in S41. Please contact us for a free, no obligation quote and compet...
From £2,592
Peak Roofclean offer an inexpensive way of permanently keeping your roof free of moss, lichens and algae. Not only is it 100% effective but...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in S41 it ranges from £2,056 (C ROWLEY (SELFBUILD) based in S43) 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 S41 by posting a job with HaMuch and we will send it to extension builders in S41.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Chesterfield | £33 | £257 |
| Install An RSJ near Dronfield | £35 | £288 |
| Install An RSJ near Sheffield | £34 | £280 |
| Install An RSJ near Alfreton | £34 | £261 |
| Install An RSJ near Sutton-in-Ashfield | £33 | £265 |
| Install An RSJ near Mansfield Woodhouse | £33 | £263 |
| Install An RSJ near Worksop | £33 | £265 |
| Install An RSJ near Kirkby-in-Ashfield | £34 | £270 |
| Install An RSJ near Ashfield | £34 | £270 |
| Install An RSJ near Mansfield | £33 | £262 |
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 - £17,586

Two storey extension - £88,128

Build a timber frame extension - £26,086

Build a swimming pool - £81,086

Single storey extension - £56,712

Side return extension - £42,463

Install an RSJ - £2,286

Outbuilding - £10,086

Build a Mansard loft conversion - £52,086

Loft conversion - £34,553

Build a kitchen extension - £42,086

Hip to gable loft conversion - £42,086

Granny annexe - £87,086

Garden office - £10,086

Convert a Garage - £16,086

Garage - £18,586

Build a flat roof extension - £22,086

Build a dormer loft conversion - £42,086

Concrete foundations - £6,336

Convert a bungalow loft - £29,086

Convert a basement - £38,463