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 £2,360
Need to find an Extension Builder near you for all your extension buildering work?
Shire Design & Build Ltd. provides a local, trusted exte...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Girvan South it ranges from £2,104 (The Wee House Company based in KA7) to £2,360 (Shire Design & Build Ltd. based in KA6).
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 Girvan South by posting a job with HaMuch and we will send it to extension builders in Girvan South.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ayr | £25 | £190 |
| Install An RSJ near South Ayrshire | £25 | £190 |
| Install An RSJ near Prestwick | £24 | £180 |
| Install An RSJ near Troon | £32 | £241 |
| Install An RSJ near Irvine | £35 | £253 |
| Install An RSJ near Kilmarnock | £36 | £271 |
| Install An RSJ near North Ayrshire | £33 | £250 |
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 - £17,532

Two storey extension - £88,048

Build a timber frame extension - £26,032

Build a swimming pool - £81,032

Single storey extension - £55,640

Side return extension - £41,860

Install an RSJ - £2,232

Outbuilding - £10,032

Build a Mansard loft conversion - £52,032

Loft conversion - £34,050

Build a kitchen extension - £42,032

Hip to gable loft conversion - £42,032

Granny annexe - £87,032

Garden office - £10,032

Convert a Garage - £16,032

Garage - £18,532

Build a flat roof extension - £22,032

Build a dormer loft conversion - £42,032

Concrete foundations - £6,282

Convert a bungalow loft - £29,032

Convert a basement - £37,860