From £1,728
Experienced extension builder ready to quote for your work. KIETH GRAY ROOFING & BUILDING is the best extension builder in Yarm. No obligation free...
From £2,008
Trusted and professional extension builder in Yarm. Experienced in all extension buildering work and keeping within budget and on quote. DHB Builde...
From £1,944
Trusted and professional extension builder in Yarm. Experienced in all extension buildering work and keeping within budget and on quote. Empire Bui...
From £2,080
Relax... you have found a reliable extension builder in Yarm. Under Pressure is a friendly and reliable company based in Yarm who consider no job a...
From £1,960
Trusted and professional extension builder in Yarm. Experienced in all extension buildering work and keeping within budget and on quote. D & G Buil...
From £2,328
Need an Extension Builder in Yarm? Holvey Home Improvements has been helping local clients (20 mile radius) with their extension buildering jobs fo...
From £1,984
Plant to Build Northern is an established and experienced local extension builder in Yarm. Please contact us for a free, no obligation quote and co...
From £2,096
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,920
S & K Windows are here to help customers who need an Extension Builder in Yarm. We offer a competitive rate to complete all your extension builderi...
From £2,048
Need to find an Extension Builder near you for all your extension buildering work?
Victory Procurement Solutions provides a local, trusted...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Yarm it ranges from £1,728 (KIETH GRAY ROOFING & BUILDING based in TS24) to £2,328 (Holvey Home Improvements based in TS12).
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 Yarm by posting a job with HaMuch and we will send it to extension builders in Yarm.
| 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 Stockton-on-Tees | £41 | £228 |
| Install An RSJ near Middlesbrough | £43 | £236 |
| Install An RSJ near Billingham | £44 | £242 |
| Install An RSJ near Eston | £42 | £241 |
| Install An RSJ near Darlington | £60 | £222 |
| Install An RSJ near Redcar & Cleveland | £43 | £254 |
| Install An RSJ near Newton Aycliffe | £39 | £227 |
| 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 - £17,310

Two storey extension - £87,714

Build a timber frame extension - £25,810

Build a swimming pool - £80,810

Single storey extension - £51,192

Side return extension - £39,358

Install an RSJ - £2,010

Outbuilding - £9,810

Build a Mansard loft conversion - £51,810

Loft conversion - £31,965

Build a kitchen extension - £41,810

Hip to gable loft conversion - £41,810

Granny annexe - £86,810

Garden office - £9,810

Convert a Garage - £15,810

Garage - £18,310

Build a flat roof extension - £21,810

Build a dormer loft conversion - £41,810

Concrete foundations - £6,060

Convert a bungalow loft - £28,810

Convert a basement - £35,358