Relax... you have found a reliable extension builder in BH25. 3Lance Developments Limited is a friendly and reliable company based in BH25 who cons...
GOTHIC CONSTRUCTION LTD is an established and experienced local extension builder in BH25. Please contact us for a free, no obligation quote...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Experienced extension builder ready to quote for your work. H H Builders is the best extension builder in BH25. No obligation free quotes and many ...
From £2,320
Advance Shutters Ltd is an established and experienced local extension builder in BH25. Please contact us for a free, no obligation quote and compe...
From £2,232
Need an Extension Builder in BH25? NIXOR Design and Build has been helping local clients (20 mile radius) with their extension buildering jobs for ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in BH25 it ranges from £2,144 (GOTHIC CONSTRUCTION LTD based in BH25) to £2,352 (3Lance Developments Limited based in SO41).
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 BH25 by posting a job with HaMuch and we will send it to extension builders in BH25.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Christchurch | £36 | £251 |
| Install An RSJ near New Forest | £32 | £245 |
| Install An RSJ near Bournemouth | £38 | £257 |
| Install An RSJ near Totton | £34 | £243 |
| Install An RSJ near Poole | £38 | £250 |
| Install An RSJ near Southampton | £34 | £243 |
| Install An RSJ near Isle of Wight | £34 | £246 |
| Install An RSJ near Locks Heath | £33 | £240 |
| Install An RSJ near Romsey | £32 | £230 |
| Install An RSJ near Hedge End | £34 | £244 |
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 - £17,544

Two storey extension - £88,066

Build a timber frame extension - £26,044

Build a swimming pool - £81,044

Single storey extension - £55,880

Side return extension - £41,995

Install an RSJ - £2,244

Outbuilding - £10,044

Build a Mansard loft conversion - £52,044

Loft conversion - £34,163

Build a kitchen extension - £42,044

Hip to gable loft conversion - £42,044

Granny annexe - £87,044

Garden office - £10,044

Convert a Garage - £16,044

Garage - £18,544

Build a flat roof extension - £22,044

Build a dormer loft conversion - £42,044

Concrete foundations - £6,294

Convert a bungalow loft - £29,044

Convert a basement - £37,995