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Northallerton, DL6
S & K Windows are here to help customers who need an Extension Builder in Northallerton. We offer a competitive rate to complete all your extension...
From £2,072
Darren Collin
Northallerton, DL7
Hi I'm darren
I'm a fully qualified time served joiner I have been doing it for 30 years and have been self employed for 12 years ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Northallerton it ranges from £1,920 (S & K Windows based in DL6) to £2,072 (Darren Collin Joinery based in DL7).
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 Northallerton by posting a job with HaMuch and we will send it to extension builders in Northallerton.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ingleby Barwick | £41 | £228 |
| Install An RSJ near Thornaby-on-Tees | £42 | £231 |
| Install An RSJ near Darlington | £60 | £222 |
| Install An RSJ near Stockton-on-Tees | £41 | £228 |
| Install An RSJ near Middlesbrough | £43 | £236 |
| Install An RSJ near Eston | £42 | £241 |
| Install An RSJ near Billingham | £44 | £242 |
| Install An RSJ near Newton Aycliffe | £38 | £225 |
| Install An RSJ near Redcar & Cleveland | £43 | £254 |
| Install An RSJ near Redcar | £42 | £240 |
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 - £17,296

Two storey extension - £87,694

Build a timber frame extension - £25,796

Build a swimming pool - £80,796

Single storey extension - £50,920

Side return extension - £39,205

Install an RSJ - £1,996

Outbuilding - £9,796

Build a Mansard loft conversion - £51,796

Loft conversion - £31,838

Build a kitchen extension - £41,796

Hip to gable loft conversion - £41,796

Granny annexe - £86,796

Garden office - £9,796

Convert a Garage - £15,796

Garage - £18,296

Build a flat roof extension - £21,796

Build a dormer loft conversion - £41,796

Concrete foundations - £6,046

Convert a bungalow loft - £28,796

Convert a basement - £35,205