Benjamin Belsey
Arkson builders ltd is an established and experienced local extension builder in SP2. Please contact us for a free, no obligation quote and competi...
From £2,352
Need an Extension Builder in SP2? Moores Build has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
From £1,512
Noel Higginson
NHBC takes great pride in what it does with a very high attention to detail

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in SP2 it ranges from £1,512 (NHBC based in SP2) to £2,352 (Moores Build based in SP1).
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 SP2 by posting a job with HaMuch and we will send it to extension builders in SP2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Salisbury | £35 | £247 |
| Install An RSJ near Test Valley | £37 | £261 |
| Install An RSJ near Romsey | £32 | £230 |
| Install An RSJ near New Forest | £32 | £245 |
| Install An RSJ near Andover | £40 | £248 |
| Install An RSJ near Totton | £34 | £243 |
| Install An RSJ near Devizes | £32 | £242 |
| Install An RSJ near Chandler's Ford | £34 | £245 |
| Install An RSJ near West Wiltshire | £32 | £242 |
| Install An RSJ near North Wiltshire | £32 | £242 |
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 - £17,367

Two storey extension - £87,800

Build a timber frame extension - £25,867

Build a swimming pool - £80,867

Single storey extension - £52,333

Side return extension - £40,000

Install an RSJ - £2,067

Outbuilding - £9,867

Build a Mansard loft conversion - £51,867

Loft conversion - £32,500

Build a kitchen extension - £41,867

Hip to gable loft conversion - £41,867

Granny annexe - £86,867

Garden office - £9,867

Convert a Garage - £15,867

Garage - £18,367

Build a flat roof extension - £21,867

Build a dormer loft conversion - £41,867

Concrete foundations - £6,117

Convert a bungalow loft - £28,867

Convert a basement - £36,000