From £1,904
Need to find an Extension Builder near you for all your extension buildering work?
NJD Joinery provides a local, trusted extension builderi...
From £2,184
Trusted and professional extension builder in WN6. Experienced in all extension buildering work and keeping within budget and on quote. JCR Constru...
From £1,408
Need an Extension Builder in WN6? MND Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering jobs fo...
From £1,976
Relax... you have found a reliable extension builder in WN6. Jc Properties is a friendly and reliable company based in WN6 who consider no job as t...
From £1,800
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,976
Trusted and professional extension builder in WN6. Experienced in all extension buildering work and keeping within budget and on quote. Holden Reno...
From £2,224
Our passion at Holden Renovations is to modernising tired spaces with exciting materials and different colours and to create unique results every t...
From £1,920
Direct Building Services is an established and experienced local extension builder in WN6. Please contact us for a free, no obligation quote and co...
From £2,000
Higher End Construction Limited is an established extension buildering business in WN6. We come highly recommended and provide competitive quotes f...
From £1,888
Experienced extension builder ready to quote for your work. BURGHWOOD CONSTRUCTION LTD is the best extension builder in WN6. No obligation free quo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WN6 it ranges from £1,408 (MND Building Services Ltd based in WN6) to £2,224 (Holden Renovations LTD based in PR7).
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 WN6 by posting a job with HaMuch and we will send it to extension builders in WN6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Wigan | £30 | £219 |
| Install An RSJ near Orrell | £29 | £214 |
| Install An RSJ near Skelmersdale | £29 | £211 |
| Install An RSJ near Hindley | £30 | £220 |
| Install An RSJ near Horwich | £31 | £220 |
| Install An RSJ near Ashton-in-Makerfield | £30 | £220 |
| Install An RSJ near Westhoughton | £31 | £223 |
| Install An RSJ near Chorley | £31 | £222 |
| Install An RSJ near Golborne | £30 | £222 |
| Install An RSJ near West Lancashire | £28 | £203 |
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 - £17,228

Two storey extension - £87,592

Build a timber frame extension - £25,728

Build a swimming pool - £80,728

Single storey extension - £49,560

Side return extension - £38,440

Install an RSJ - £1,928

Outbuilding - £9,728

Build a Mansard loft conversion - £51,728

Loft conversion - £31,200

Build a kitchen extension - £41,728

Hip to gable loft conversion - £41,728

Granny annexe - £86,728

Garden office - £9,728

Convert a Garage - £15,728

Garage - £18,228

Build a flat roof extension - £21,728

Build a dormer loft conversion - £41,728

Concrete foundations - £5,978

Convert a bungalow loft - £28,728

Convert a basement - £34,440