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Trusted and professional extension builder in SA11. 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 SA11 it ranges from £2,176 (HALL & HARRIS CONSTRUCTION based in SA11) 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 SA11 by posting a job with HaMuch and we will send it to extension builders in SA11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Neath Port Talbot | £31 | £224 |
| Install An RSJ near Neath | £30 | £225 |
| Install An RSJ near Port Talbot | £31 | £227 |
| Install An RSJ near Maesteg | £38 | £283 |
| Install An RSJ near Swansea | £29 | £229 |
| Install An RSJ near Pyle | £34 | £262 |
| Install An RSJ near Gorseinon | £29 | £228 |
| Install An RSJ near Aberdare | £32 | £212 |
| Install An RSJ near Porthcawl | £33 | £252 |
| Install An RSJ near Bridgend | £32 | £200 |
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 - £17,476

Two storey extension - £87,964

Build a timber frame extension - £25,976

Build a swimming pool - £80,976

Single storey extension - £54,520

Side return extension - £41,230

Install an RSJ - £2,176

Outbuilding - £9,976

Build a Mansard loft conversion - £51,976

Loft conversion - £33,525

Build a kitchen extension - £41,976

Hip to gable loft conversion - £41,976

Granny annexe - £86,976

Garden office - £9,976

Convert a Garage - £15,976

Garage - £18,476

Build a flat roof extension - £21,976

Build a dormer loft conversion - £41,976

Concrete foundations - £6,226

Convert a bungalow loft - £28,976

Convert a basement - £37,230