From £1,808
Experienced extension builder ready to quote for your work. DJ Brooks Construction is the best extension builder in WA15. No obligation free quotes...
From £2,224
Field design & build ltd is an established and experienced local extension builder in WA15. Please contact us for a free, no obligation quote and c...
From £2,040
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,848
Trusted and professional extension builder in WA15. Experienced in all extension buildering work and keeping within budget and on quote. Just Conve...
From £2,216
Relax... you have found a reliable extension builder in WA15. SupeRend is a friendly and reliable company based in WA15 who consider no job as too ...
From £1,816
T J BUILDERS is an established extension buildering business in WA15. We come highly recommended and provide competitive quotes for your work.
...From £2,136
Assured Building Solutions is an established extension buildering business in WA15. We come highly recommended and provide competitive quotes for y...
From £2,096
Willow Building & Resin Drives Ltd is an established and experienced local extension builder in WA15. Please contact us for a free, no obligation q...
From £1,824
OLDFIELD BUILD & SHOPFIT LTD is a trusted extension builder serving customers in WA15 and the surrounding area. Contact us to today to get a compet...
From £1,888
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in WA15 it ranges from £1,808 (DJ Brooks Construction based in WA14) to £2,224 (Field design & build ltd based in Wa14).
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 WA15 by posting a job with HaMuch and we will send it to extension builders in WA15.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Altrincham | £27 | £196 |
| Install An RSJ near Sale | £28 | £203 |
| Install An RSJ near Wythenshawe | £27 | £198 |
| Install An RSJ near Trafford | £28 | £203 |
| Install An RSJ near Gatley | £27 | £200 |
| Install An RSJ near Stretford | £27 | £203 |
| Install An RSJ near Urmston | £27 | £201 |
| Install An RSJ near Cheadle Hulme | £27 | £201 |
| Install An RSJ near Old Trafford | £27 | £203 |
| Install An RSJ near Wilmslow | £27 | £201 |
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 - £17,290

Two storey extension - £87,684

Build a timber frame extension - £25,790

Build a swimming pool - £80,790

Single storey extension - £50,792

Side return extension - £39,133

Install an RSJ - £1,990

Outbuilding - £9,790

Build a Mansard loft conversion - £51,790

Loft conversion - £31,778

Build a kitchen extension - £41,790

Hip to gable loft conversion - £41,790

Granny annexe - £86,790

Garden office - £9,790

Convert a Garage - £15,790

Garage - £18,290

Build a flat roof extension - £21,790

Build a dormer loft conversion - £41,790

Concrete foundations - £6,040

Convert a bungalow loft - £28,790

Convert a basement - £35,133