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Lee Jones
Jones Masonry Ltd is a trusted extension builder serving customers in Allerton and the surrounding area. Contact us to today to get a competitive q...
C Wilcock Builders is an established extension buildering business in Allerton. We come highly recommended and provide competitive quotes for your ...
Dave Harrison
DAVID HARRISON BUILDING are here to help customers who need an Extension Builder in Allerton. We offer a competitive rate to complete all your exte...
Experienced extension builder ready to quote for your work. L J Robson (Contracts) Ltd is the best extension builder in Allerton. No obligation fre...
Need to find an Extension Builder near you for all your extension buildering work?
Robbie Robinson provides a local, trusted extension buil...
Need to find an Extension Builder near you for all your extension buildering work?
MEP Building Services provides a local, trusted extensio...
Robert Gladwin
RG Decorators is an established and experienced local extension builder in Allerton. Please contact us for a free, no obligation quote and competit...
Benchmark Builders is a trusted extension builder serving customers in Allerton and the surrounding area. Contact us to today to get a competitive ...
Need an Extension Builder in Allerton? LRS Maintenance & Property Renovators has been helping local clients (20 mile radius) with their extension b...
Relax... you have found a reliable extension builder in Allerton. MS General is a friendly and reliable company based in Allerton who consider no j...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Allerton it ranges from £1,848 (Robbie Robinson based in HX2) to £2,512 (Jones Masonry Ltd based in BD19).
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 Allerton by posting a job with HaMuch and we will send it to extension builders in Allerton.
"RSJ installation" - BD6, job posted 01/01/70
"RSJ installation on 2 semi detached Properties at Rear Mobile Number:0740 565x xx" - BRADFORD, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Bingley | £30 | £229 |
| Install An RSJ near Bradford | £29 | £225 |
| Install An RSJ near Shipley | £29 | £226 |
| Install An RSJ near Keighley | £30 | £226 |
| Install An RSJ near Halifax | £32 | £243 |
| Install An RSJ near Pudsey | £30 | £227 |
| Install An RSJ near Brighouse | £30 | £230 |
| Install An RSJ near Calderdale | £33 | £253 |
| Install An RSJ near Batley | £32 | £239 |
| Install An RSJ near Mirfield | £31 | £236 |
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 - £17,412

Two storey extension - £87,868

Build a timber frame extension - £25,912

Build a swimming pool - £80,912

Single storey extension - £53,240

Side return extension - £40,510

Install an RSJ - £2,112

Outbuilding - £9,912

Build a Mansard loft conversion - £51,912

Loft conversion - £32,925

Build a kitchen extension - £41,912

Hip to gable loft conversion - £41,912

Granny annexe - £86,912

Garden office - £9,912

Convert a Garage - £15,912

Garage - £18,412

Build a flat roof extension - £21,912

Build a dormer loft conversion - £41,912

Concrete foundations - £6,162

Convert a bungalow loft - £28,912

Convert a basement - £36,510