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...
From £1,856
David Wood Building Kitchens And Bathrooms is a trusted extension builder serving customers in LS20 and the surrounding area. Contact us to today t...
From £1,520
L & D Builders & Joiners is a trusted extension builder serving customers in LS20 and the surrounding area. Contact us to today to get a competitiv...
From £2,256
Trusted and professional extension builder in LS20. Experienced in all extension buildering work and keeping within budget and on quote. Extend Rit...
From £1,832
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 £2,040
Need to find an Extension Builder near you for all your extension buildering work?
full circle garden and design provides a local, trusted ...
From £2,112
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,264
We are a Leeds based roofing contractor covering the domestic and commercial sectors. We specialise in a number of flat roofing systems with long l...
From £2,096
Need an Extension Builder in LS20? LRS Maintenance & Property Renovators has been helping local clients (20 mile radius) with their extension build...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in LS20 it ranges from £1,520 (L & D Builders & Joiners based in BD18) 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 | £224 |
| Install An RSJ near Bingley | £30 | £226 |
| Install An RSJ near Pudsey | £29 | £225 |
| Install An RSJ near Bradford | £29 | £223 |
| 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 - £17,329

Two storey extension - £87,743

Build a timber frame extension - £25,829

Build a swimming pool - £80,829

Single storey extension - £51,576

Side return extension - £39,574

Install an RSJ - £2,029

Outbuilding - £9,829

Build a Mansard loft conversion - £51,829

Loft conversion - £32,145

Build a kitchen extension - £41,829

Hip to gable loft conversion - £41,829

Granny annexe - £86,829

Garden office - £9,829

Convert a Garage - £15,829

Garage - £18,329

Build a flat roof extension - £21,829

Build a dormer loft conversion - £41,829

Concrete foundations - £6,079

Convert a bungalow loft - £28,829

Convert a basement - £35,574