From £1,960
R.G Construction is an established and experienced local extension builder in WS11. Please contact us for a free, no obligation quote and competiti...
From £1,864
Experienced extension builder ready to quote for your work. S B Evans Bricklaying Contractor Ltd is the best extension builder in WS11. No obligati...
From £1,904
Prompt .tidy .exspearianced.quality of work
From £2,040
Need to find an Extension Builder near you for all your extension buildering work?
Willbuild provides a local, trusted extension buildering...
From £2,184
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,136
Zygi&Bob Builders is an established extension buildering business in WS11. We come highly recommended and provide competitive quotes for your work....
From £2,072
Welcome to WWM Property Solutions, where we specialize in creating exceptional outdoor and indoor spaces tailored to your unique lifestyle. As a le...
From £3,000
Member since December 2022
Hi, My name is Gus Sperin. I am self-employed electrician, and I have been running my business since 2010. I have been in the electrical ...
From £1,768
Trusted and professional extension builder in WS11. Experienced in all extension buildering work and keeping within budget and on quote. Bhogal Con...
From £1,904
AJ Home Improvements is an established extension buildering business in WS11. We come highly recommended and provide competitive quotes for your wo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WS11 it ranges from £1,768 (Bhogal Construction based in B67) to £3,000 (Sperin Interiors based in B66).
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 WS11 by posting a job with HaMuch and we will send it to extension builders in WS11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Cannock | £28 | £227 |
| Install An RSJ near Burntwood | £29 | £229 |
| Install An RSJ near Brownhills | £29 | £225 |
| Install An RSJ near Bloxwich | £28 | £226 |
| Install An RSJ near Rugeley | £30 | £230 |
| Install An RSJ near Walsall | £29 | £226 |
| Install An RSJ near Willenhall | £29 | £225 |
| Install An RSJ near Darlaston | £29 | £226 |
| Install An RSJ near Lichfield | £29 | £226 |
| Install An RSJ near Wolverhampton | £28 | £222 |
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 - £17,383

Two storey extension - £87,825

Build a timber frame extension - £25,883

Build a swimming pool - £80,883

Single storey extension - £52,664

Side return extension - £40,186

Install an RSJ - £2,083

Outbuilding - £9,883

Build a Mansard loft conversion - £51,883

Loft conversion - £32,655

Build a kitchen extension - £41,883

Hip to gable loft conversion - £41,883

Granny annexe - £86,883

Garden office - £9,883

Convert a Garage - £15,883

Garage - £18,383

Build a flat roof extension - £21,883

Build a dormer loft conversion - £41,883

Concrete foundations - £6,133

Convert a bungalow loft - £28,883

Convert a basement - £36,186