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Trusted and professional extension builder in LS20. Experienced in all extension buildering work and keeping within budget and on quote. Extend Rit...
Paul Bantock
Need to find an Extension Builder near you for all your extension buildering work?
full circle garden and design provides a local, trusted ...
From £1,832
Justin
Select Products are proud to be recognised as a Which? Trusted Trader. We provide a range of home improvements including high security windows and ...
From £2,048
We offer Concept Design ideas for you to see what your room, house, office space can look like.
From £2,264
RJB Construction and Joinery is a trusted extension builder serving customers in LS20 and the surrounding area. Contact us to today to get a compet...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in LS20 it ranges from £1,832 (Select Products Yorkshire Ltd based in LS13) to £2,264 (RJB Construction and Joinery based in LS20).
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 LS20 by posting a job with HaMuch and we will send it to extension builders in LS20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Shipley | £29 | £226 |
| Install An RSJ near Bingley | £30 | £229 |
| Install An RSJ near Pudsey | £30 | £227 |
| Install An RSJ near Bradford | £29 | £225 |
| Install An RSJ near Keighley | £30 | £226 |
| Install An RSJ near Leeds | £31 | £236 |
| Install An RSJ near Chapeltown | £30 | £232 |
| Install An RSJ near Beeston | £31 | £236 |
| Install An RSJ near Morley | £31 | £239 |
| Install An RSJ near Harrogate | £29 | £225 |
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 - £17,388

Two storey extension - £87,832

Build a timber frame extension - £25,888

Build a swimming pool - £80,888

Single storey extension - £52,760

Side return extension - £40,240

Install an RSJ - £2,088

Outbuilding - £9,888

Build a Mansard loft conversion - £51,888

Loft conversion - £32,700

Build a kitchen extension - £41,888

Hip to gable loft conversion - £41,888

Granny annexe - £86,888

Garden office - £9,888

Convert a Garage - £15,888

Garage - £18,388

Build a flat roof extension - £21,888

Build a dormer loft conversion - £41,888

Concrete foundations - £6,138

Convert a bungalow loft - £28,888

Convert a basement - £36,240