From £1,808
Trusted and professional extension builder in WA11. Experienced in all extension buildering work and keeping within budget and on quote. M L R Buil...
From £1,864
Need an Extension Builder in WA11? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £1,424
MJ Barker & Son is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes for your work.
From £2,072
G. Finnigan Builders is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes for your wo...
From £2,000
Higher End Construction Limited is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes ...
From £2,000
Need to find an Extension Builder near you for all your extension buildering work?
J R Building Services provides a local, trusted extensio...
From £2,064
Need to find an Extension Builder near you for all your extension buildering work?
Maintenance Point provides a local, trusted extension bu...
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 £2,096
HIGHTOWN CONSTRUCTION LTD is an established extension buildering business in WA11. We come highly recommended and provide competitive quotes for yo...
From £1,920
Direct Building Services is an established and experienced local extension builder in WA11. Please contact us for a free, no obligation quote and c...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WA11 it ranges from £1,424 (MJ Barker & Son based in WA11) to £2,096 (HIGHTOWN CONSTRUCTION LTD based in L34).
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 WA11 by posting a job with HaMuch and we will send it to extension builders in WA11.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near St Helens | £31 | £224 |
| Install An RSJ near Ashton-in-Makerfield | £30 | £220 |
| Install An RSJ near Newton-le-Willows | £31 | £221 |
| Install An RSJ near Orrell | £29 | £214 |
| Install An RSJ near Prescot | £33 | £239 |
| Install An RSJ near Golborne | £30 | £222 |
| Install An RSJ near Knowsley | £32 | £236 |
| Install An RSJ near Skelmersdale | £29 | £211 |
| Install An RSJ near Wigan | £30 | £219 |
| Install An RSJ near Huyton with Roby | £33 | £240 |
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 - £17,205

Two storey extension - £87,557

Build a timber frame extension - £25,705

Build a swimming pool - £80,705

Single storey extension - £49,096

Side return extension - £38,179

Install an RSJ - £1,905

Outbuilding - £9,705

Build a Mansard loft conversion - £51,705

Loft conversion - £30,983

Build a kitchen extension - £41,705

Hip to gable loft conversion - £41,705

Granny annexe - £86,705

Garden office - £9,705

Convert a Garage - £15,705

Garage - £18,205

Build a flat roof extension - £21,705

Build a dormer loft conversion - £41,705

Concrete foundations - £5,955

Convert a bungalow loft - £28,705

Convert a basement - £34,179