Marin Hughes General Builders is a trusted extension builder serving customers in SA10 and the surrounding area. Contact us to today to get a compe...
Trusted and professional extension builder in SA10. Experienced in all extension buildering work and keeping within budget and on quote. HALL & HAR...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SA10 it ranges from £1,960 (Marin Hughes General Builders based in SA10) to £2,176 (HALL & HARRIS CONSTRUCTION based in SA11).
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 SA10 by posting a job with HaMuch and we will send it to extension builders in SA10.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Neath | £30 | £225 |
| Install An RSJ near Neath Port Talbot | £31 | £224 |
| Install An RSJ near Port Talbot | £31 | £227 |
| Install An RSJ near Swansea | £29 | £229 |
| Install An RSJ near Maesteg | £38 | £283 |
| Install An RSJ near Gorseinon | £29 | £228 |
| Install An RSJ near Pyle | £34 | £262 |
| Install An RSJ near Porthcawl | £33 | £252 |
| Install An RSJ near Aberdare | £32 | £212 |
| Install An RSJ near Llanelli | £29 | £231 |
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 - £17,368

Two storey extension - £87,802

Build a timber frame extension - £25,868

Build a swimming pool - £80,868

Single storey extension - £52,360

Side return extension - £40,015

Install an RSJ - £2,068

Outbuilding - £9,868

Build a Mansard loft conversion - £51,868

Loft conversion - £32,513

Build a kitchen extension - £41,868

Hip to gable loft conversion - £41,868

Granny annexe - £86,868

Garden office - £9,868

Convert a Garage - £15,868

Garage - £18,368

Build a flat roof extension - £21,868

Build a dormer loft conversion - £41,868

Concrete foundations - £6,118

Convert a bungalow loft - £28,868

Convert a basement - £36,015