RSJs support your new extension or other construction to ensure that your property is structurally sound. They are crucial parts of your building work that mustn't be ignored, and must be installed by a professional.
How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CA12 it ranges from £1,400 (Ian Groves based in CA12) to £1,800 (STAN MARTIN T/A based in CA26).
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 CA12 by posting a job with HaMuch and we will send it to extension builders in CA12.

| Business name | RSJ installation cost |
|---|---|
| Ian Groves, Penrith , CA12 | £1,400 |
| M & K BUILDERS KESWICK LIMITED, Keswick, CA12 | £1,512 |
| STAN MARTIN T/A, Frizington, CA26 | £1,800 |
| PAUL LITTLE BUILDING MAINT, Wigton, CA7 | £1,424 |
| ASKEW CONSTRUCTION, Wetheral, CA4 | £1,400 |
| William king Construction, Jacktrees Road, Cleator moor, Cumbria CA25 5B, CA25 | £1,584 |
| J R S BUILDING, Windermere, LA23 | £1,712 |
| Sc brickwork, Cumbria, CA22 | £1,648 |
| M c trading, Cumbria, Ca2 | £1,512 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| RSJ Installation near Whitehaven | £18 | £185 |
| RSJ Installation near Carlisle | £21 | £175 |
| RSJ Installation near Kendal | £24 | £200 |