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Benton Builders is an established and experienced local extension builder in Shirley. Please contact us for a free, no obligation quote and competi...
Need to find an Extension Builder near you for all your extension buildering work?
D Broomhall provides a local, trusted extension builderi...
Relax... you have found a reliable extension builder in Shirley. Tucker Construction is a friendly and reliable company based in Shirley who consid...
SM&S General Property Repairs is a trusted extension builder serving customers in Shirley and the surrounding area. Contact us to today to get a co...
Wilson & Son is an established and experienced local extension builder in Shirley. Please contact us for a free, no obligation quote and competitiv...
Need to find an Extension Builder near you for all your extension buildering work?
Michael Locke Garage Doors provides a local, trusted ext...
Trusted and professional extension builder in Shirley. Experienced in all extension buildering work and keeping within budget and on quote. D & S D...
Relax... you have found a reliable extension builder in Shirley. Platinum Build is a friendly and reliable company based in Shirley who consider no...
Gary Wilson
Reliable person 25 years experience
if you look on a website rated people and have a look at my ratings
Andrew Bouton
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 Shirley it ranges from £1,800 (D Broomhall based in B45) to £2,160 (SM&S General Property Repairs based in B38).
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 Shirley by posting a job with HaMuch and we will send it to extension builders in Shirley.
"RSJ installation" - B90, job posted 03/08/26
"Total cost of structural engineer report, supply and install 6M RSJ for a load bearing wall to make kitchen/diner." - B90, job posted 01/11/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Solihull | £29 | £231 |
| Install An RSJ near Knowle | £31 | £241 |
| Install An RSJ near Birmingham | £29 | £229 |
| Install An RSJ near Smethwick | £29 | £230 |
| Install An RSJ near Oldbury | £29 | £229 |
| Install An RSJ near Halesowen | £28 | £225 |
| Install An RSJ near Sutton Coldfield | £29 | £228 |
| Install An RSJ near Bromsgrove | £31 | £237 |
| Install An RSJ near Rowley Regis | £29 | £228 |
| Install An RSJ near West Bromwich | £29 | £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 - £17,320

Two storey extension - £87,730

Build a timber frame extension - £25,820

Build a swimming pool - £80,820

Single storey extension - £51,400

Side return extension - £39,475

Install an RSJ - £2,020

Outbuilding - £9,820

Build a Mansard loft conversion - £51,820

Loft conversion - £32,063

Build a kitchen extension - £41,820

Hip to gable loft conversion - £41,820

Granny annexe - £86,820

Garden office - £9,820

Convert a Garage - £15,820

Garage - £18,320

Build a flat roof extension - £21,820

Build a dormer loft conversion - £41,820

Concrete foundations - £6,070

Convert a bungalow loft - £28,820

Convert a basement - £35,475