From £2,784
Need an Extension Builder in Lymington? RNTP ltd has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £2,344
We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...
From £2,216
Trusted and professional extension builder in Lymington. Experienced in all extension buildering work and keeping within budget and on quote. GMS C...
From £2,376
Trusted and professional extension builder in Lymington. Experienced in all extension buildering work and keeping within budget and on quote. MDW K...
From £2,192
Experienced extension builder ready to quote for your work. Nevil Rose is the best extension builder in Lymington. No obligation free quotes and ma...
From £1,776
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,232
BIRCHES CONSTRUCTION LTD are here to help customers who need an Extension Builder in Lymington. We offer a competitive rate to complete all your ex...
From £2,416
Trusted and professional extension builder in Lymington. Experienced in all extension buildering work and keeping within budget and on quote. Hayes...
From £2,424
Trusted and professional extension builder in Lymington. Experienced in all extension buildering work and keeping within budget and on quote. WR WA...
From £2,320
Experienced extension builder ready to quote for your work. JOSCELYNE BUILDERS is the best extension builder in Lymington. No obligation free quote...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Lymington it ranges from £1,776 (ALWYN DOMINEY based in BH12) to £2,784 (RNTP ltd based in BH14).
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 Lymington by posting a job with HaMuch and we will send it to extension builders in Lymington.
| 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 Totton | £34 | £243 |
| Install An RSJ near Isle of Wight | £34 | £246 |
| Install An RSJ near Southampton | £34 | £243 |
| Install An RSJ near Bournemouth | £38 | £257 |
| Install An RSJ near Locks Heath | £33 | £240 |
| Install An RSJ near Hedge End | £34 | £244 |
| Install An RSJ near Lee-on-the-Solent | £35 | £249 |
| Install An RSJ near Romsey | £32 | £230 |
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 - £17,608

Two storey extension - £88,162

Build a timber frame extension - £26,108

Build a swimming pool - £81,108

Single storey extension - £57,160

Side return extension - £42,715

Install an RSJ - £2,308

Outbuilding - £10,108

Build a Mansard loft conversion - £52,108

Loft conversion - £34,763

Build a kitchen extension - £42,108

Hip to gable loft conversion - £42,108

Granny annexe - £87,108

Garden office - £10,108

Convert a Garage - £16,108

Garage - £18,608

Build a flat roof extension - £22,108

Build a dormer loft conversion - £42,108

Concrete foundations - £6,358

Convert a bungalow loft - £29,108

Convert a basement - £38,715