From £2,168
Relax... you have found a reliable extension builder in S71. CS Construction & Conversions is a friendly and reliable company based in S71 who cons...
From £2,208
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 £1,832
AAA BUILDERS are here to help customers who need an Extension Builder in S71. We offer a competitive rate to complete all your extension buildering...
From £2,144
Need an Extension Builder in S71? D & D Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £2,120
Experienced extension builder ready to quote for your work. J W Building Services is the best extension builder in S71. No obligation free quotes a...
From £2,032
Need an Extension Builder in S71? Watertight Roofing Leeds has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £1,832
Trusted and professional extension builder in S71. Experienced in all extension buildering work and keeping within budget and on quote. Fearnville ...
From £2,136
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 £2,312
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 S71 it ranges from £1,488 (JON WINDLE CONSTRUCTION based in S17) to £2,312 (Premier Lofts based in S11).
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 S71 by posting a job with HaMuch and we will send it to extension builders in S71.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Barnsley | £31 | £242 |
| Install An RSJ near Wakefield | £31 | £240 |
| Install An RSJ near Ossett | £33 | £245 |
| Install An RSJ near Normanton | £30 | £233 |
| Install An RSJ near Pontefract | £30 | £228 |
| Install An RSJ near Dewsbury | £33 | £245 |
| Install An RSJ near Rotherham | £33 | £257 |
| Install An RSJ near Castleford | £30 | £225 |
| Install An RSJ near Mirfield | £31 | £236 |
| Install An RSJ near Rothwell | £30 | £230 |
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 - £17,327

Two storey extension - £87,741

Build a timber frame extension - £25,827

Build a swimming pool - £80,827

Single storey extension - £51,544

Side return extension - £39,556

Install an RSJ - £2,027

Outbuilding - £9,827

Build a Mansard loft conversion - £51,827

Loft conversion - £32,130

Build a kitchen extension - £41,827

Hip to gable loft conversion - £41,827

Granny annexe - £86,827

Garden office - £9,827

Convert a Garage - £15,827

Garage - £18,327

Build a flat roof extension - £21,827

Build a dormer loft conversion - £41,827

Concrete foundations - £6,077

Convert a bungalow loft - £28,827

Convert a basement - £35,556