From £2,264
Experienced extension builder ready to quote for your work. west yorkshire plumbing and heating services ltd is the best extension builder in WF15....
From £2,136
Need an Extension Builder in WF15? Paragon Oak Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...
From £2,512
Jones Masonry Ltd is a trusted extension builder serving customers in WF15 and the surrounding area. Contact us to today to get a competitive quote...
From £2,136
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,240
Operating across Yorkshire and offering all joinery works to suit your needs, we can beat any genuine quote. Our commitment to craftsmanship ensure...
From £1,392
T & B Builders is an established extension buildering business in WF15. We come highly recommended and provide competitive quotes for your work.
From £2,064
DAVID HARRISON BUILDING are here to help customers who need an Extension Builder in WF15. We offer a competitive rate to complete all your extensio...
From £1,928
Experienced extension builder ready to quote for your work. L J Robson (Contracts) Ltd is the best extension builder in WF15. No obligation free qu...
From £1,928
STEVE BLAKELEY BUILDERS LTD are here to help customers who need an Extension Builder in WF15. We offer a competitive rate to complete all your exte...
From £2,208
Bee brand designs is a trusted extension builder serving customers in WF15 and the surrounding area. Contact us to today to get a competitive quote...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WF15 it ranges from £1,392 (T & B Builders based in WF17) to £2,512 (Jones Masonry Ltd based in BD19).
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 WF15 by posting a job with HaMuch and we will send it to extension builders in WF15.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Mirfield | £31 | £236 |
| Install An RSJ near Batley | £32 | £239 |
| Install An RSJ near Brighouse | £30 | £230 |
| Install An RSJ near Dewsbury | £33 | £245 |
| Install An RSJ near Morley | £31 | £239 |
| Install An RSJ near Ossett | £33 | £245 |
| Install An RSJ near Huddersfield | £29 | £224 |
| Install An RSJ near Bradford | £29 | £223 |
| Install An RSJ near Pudsey | £29 | £225 |
| Install An RSJ near Halifax | £32 | £243 |
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 - £17,381

Two storey extension - £87,821

Build a timber frame extension - £25,881

Build a swimming pool - £80,881

Single storey extension - £52,616

Side return extension - £40,159

Install an RSJ - £2,081

Outbuilding - £9,881

Build a Mansard loft conversion - £51,881

Loft conversion - £32,633

Build a kitchen extension - £41,881

Hip to gable loft conversion - £41,881

Granny annexe - £86,881

Garden office - £9,881

Convert a Garage - £15,881

Garage - £18,381

Build a flat roof extension - £21,881

Build a dormer loft conversion - £41,881

Concrete foundations - £6,131

Convert a bungalow loft - £28,881

Convert a basement - £36,159