From £2,024
Relax... you have found a reliable extension builder in WF1. Foundation Building Services is a friendly and reliable company based in WF1 who consi...
From £2,104
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,992
ASHBURY CONSTRUCTION T/A is an established and experienced local extension builder in WF1. Please contact us for a free, no obligation quote and co...
From £1,976
I've been in the trade over 25 years working on commercial and domestic high end properties
From £1,928
STEVE BLAKELEY BUILDERS LTD are here to help customers who need an Extension Builder in WF1. We offer a competitive rate to complete all your exten...
From £2,208
Bee brand designs is a trusted extension builder serving customers in WF1 and the surrounding area. Contact us to today to get a competitive quote ...
From £2,336
Experienced in Interiors, products, furniture, styling, environment, Design for manufacture, Concept Design.
From £2,056
ABC Building & Design is an established and experienced local extension builder in WF1. Please contact us for a free, no obligation quote and compe...
From £1,896
D Noble Limited Building And Civil Engineering Contracts is an established extension buildering business in WF1. We come highly recommended and pro...
From £1,784
Experienced extension builder ready to quote for your work. Noble Homes is the best extension builder in WF1. No obligation free quotes and many ha...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WF1 it ranges from £1,784 (Noble Homes based in WF10) to £2,336 (Bee brand designs based in wf12).
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 WF1 by posting a job with HaMuch and we will send it to extension builders in WF1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Wakefield | £31 | £240 |
| Install An RSJ near Normanton | £30 | £233 |
| Install An RSJ near Ossett | £33 | £245 |
| Install An RSJ near Rothwell | £30 | £229 |
| Install An RSJ near Dewsbury | £33 | £245 |
| Install An RSJ near Morley | £31 | £239 |
| Install An RSJ near Batley | £32 | £239 |
| Install An RSJ near Castleford | £30 | £225 |
| Install An RSJ near Beeston | £31 | £236 |
| Install An RSJ near Pontefract | £30 | £228 |
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 - £17,330

Two storey extension - £87,746

Build a timber frame extension - £25,830

Build a swimming pool - £80,830

Single storey extension - £51,608

Side return extension - £39,592

Install an RSJ - £2,030

Outbuilding - £9,830

Build a Mansard loft conversion - £51,830

Loft conversion - £32,160

Build a kitchen extension - £41,830

Hip to gable loft conversion - £41,830

Granny annexe - £86,830

Garden office - £9,830

Convert a Garage - £15,830

Garage - £18,330

Build a flat roof extension - £21,830

Build a dormer loft conversion - £41,830

Concrete foundations - £6,080

Convert a bungalow loft - £28,830

Convert a basement - £35,592