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S & A W Joinery & Construction is a trusted extension builder serving customers in DH9 and the surrounding area. Contact us to today to get a compe...
Need to find an Extension Builder near you for all your extension buildering work?
Derwent View Roofing provides a local, trusted extension...
Experienced extension builder ready to quote for your work. L F BUILDING & JOINERY is the best extension builder in DH9. No obligation free quotes ...
From £2,112
Need an Extension Builder in DH9? Spacesaver Loft Storage has been helping local clients (20 mile radius) with their extension buildering jobs for ...
From £2,472
Paul Curry
We have 20+ years experience through all trades supplied.
Yes, we are an Advanced Vaillant installer.
Yes we are members of S...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DH9 it ranges from £2,032 (L F BUILDING & JOINERY based in DH2) to £2,472 (Lighthouse North East Limited based in DH9).
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 DH9 by posting a job with HaMuch and we will send it to extension builders in DH9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Stanley | £34 | £242 |
| Install An RSJ near Chester-le-Street | £35 | £242 |
| Install An RSJ near Consett | £33 | £241 |
| Install An RSJ near Gateshead | £33 | £236 |
| Install An RSJ near Washington | £33 | £254 |
| Install An RSJ near Durham | £47 | £267 |
| Install An RSJ near Newcastle Upon Tyne | £33 | £236 |
| Install An RSJ near Sunderland | £33 | £251 |
| Install An RSJ near Hebburn | £34 | £246 |
| Install An RSJ near Longbenton | £34 | £234 |
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 - £17,514

Two storey extension - £88,022

Build a timber frame extension - £26,014

Build a swimming pool - £81,014

Single storey extension - £55,288

Side return extension - £41,662

Install an RSJ - £2,214

Outbuilding - £10,014

Build a Mansard loft conversion - £52,014

Loft conversion - £33,885

Build a kitchen extension - £42,014

Hip to gable loft conversion - £42,014

Granny annexe - £87,014

Garden office - £10,014

Convert a Garage - £16,014

Garage - £18,514

Build a flat roof extension - £22,014

Build a dormer loft conversion - £42,014

Concrete foundations - £6,264

Convert a bungalow loft - £29,014

Convert a basement - £37,662