From £2,224
Field design & build ltd is an established and experienced local extension builder in Altrincham. Please contact us for a free, no obligation quote...
From £1,808
Altrincham, WA14
Experienced extension builder ready to quote for your work. DJ Brooks Construction is the best extension builder in Altrincham. No obligation free ...
From £1,816
Altrincham, WA14
T J BUILDERS is an established extension buildering business in Altrincham. We come highly recommended and provide competitive quotes for your wor...
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 £2,216
Relax... you have found a reliable extension builder in Altrincham. SupeRend is a friendly and reliable company based in Altrincham who consider no...
From £2,096
Willow Building & Resin Drives Ltd is an established and experienced local extension builder in Altrincham. Please contact us for a free, no obliga...
From £1,888
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 Altrincham. Experienced in all extension buildering work and keeping within budget and on quote. Just...
From £1,824
OLDFIELD BUILD & SHOPFIT LTD is a trusted extension builder serving customers in Altrincham and the surrounding area. Contact us to today to get a ...
From £2,136
Assured Building Solutions is an established extension buildering business in Altrincham. We come highly recommended and provide competitive quotes...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Altrincham 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 Altrincham by posting a job with HaMuch and we will send it to extension builders in Altrincham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Altrincham | £32 | £228 |
| Install An RSJ near Trafford | £32 | £235 |
| Install An RSJ near Sale | £32 | £235 |
| Install An RSJ near Wythenshawe | £31 | £229 |
| Install An RSJ near Urmston | £32 | £231 |
| Install An RSJ near Gatley | £31 | £230 |
| Install An RSJ near Irlam | £32 | £225 |
| Install An RSJ near Stretford | £32 | £235 |
| Install An RSJ near Old Trafford | £32 | £236 |
| Install An RSJ near Wilmslow | £31 | £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 - £17,290

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