From £1,944
Trusted and professional extension builder in Thornaby-on-tees. Experienced in all extension buildering work and keeping within budget and on quote...
From £2,136
Design Consultancy & Construction Services Ltd are here to help customers who need an Extension Builder in Thornaby-on-tees. We offer a competitive...
From £2,176
Need an Extension Builder in Thornaby-on-tees? M&K BEDROOM DESIGNS has been helping local clients (20 mile radius) with their extension buildering ...
From £2,080
Relax... you have found a reliable extension builder in Thornaby-on-tees. Under Pressure is a friendly and reliable company based in Thornaby-on-te...
From £2,408
Experienced extension builder ready to quote for your work. pidesigns is the best extension builder in Thornaby-on-tees. No obligation free quotes ...
From £2,328
Trusted and professional extension builder in Thornaby-on-tees. Experienced in all extension buildering work and keeping within budget and on quote...
From £2,016
Need an Extension Builder in Thornaby-on-tees? CHERRYBURN CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension bui...
From £2,384
Over a Decade of Property Maintenance. Military Maintenance has years of experience in the construction and development industry, our expertise ran...
From £1,640
Trusted and professional extension builder in Thornaby-on-tees. Experienced in all extension buildering work and keeping within budget and on quote...
From £1,960
Trusted and professional extension builder in Thornaby-on-tees. Experienced in all extension buildering work and keeping within budget and on quote...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Thornaby-on-tees it ranges from £1,640 (Marshall & Son Builders based in TS14) to £2,408 (Pidesigns based in DL1).
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 Thornaby-on-tees by posting a job with HaMuch and we will send it to extension builders in Thornaby-on-tees.
"Removing a structural wall between the kitchen and dining room. We have sent off the structural drawings to building control. We have also specified via 1:10 details a hidden beam detail which sits within the floor void. This would mean cutting the timber joist overhangs and install joist hangers..." - STOCKTON-ON-TEES, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Thornaby-on-Tees | £42 | £231 |
| Install An RSJ near Ingleby Barwick | £41 | £228 |
| 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 Redcar & Cleveland | £43 | £254 |
| Install An RSJ near Redcar | £42 | £240 |
| Install An RSJ near Darlington | £60 | £222 |
| Install An RSJ near Hartlepool | £40 | £236 |
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 - £17,407

Two storey extension - £87,861

Build a timber frame extension - £25,907

Build a swimming pool - £80,907

Single storey extension - £53,144

Side return extension - £40,456

Install an RSJ - £2,107

Outbuilding - £9,907

Build a Mansard loft conversion - £51,907

Loft conversion - £32,880

Build a kitchen extension - £41,907

Hip to gable loft conversion - £41,907

Granny annexe - £86,907

Garden office - £9,907

Convert a Garage - £15,907

Garage - £18,407

Build a flat roof extension - £21,907

Build a dormer loft conversion - £41,907

Concrete foundations - £6,157

Convert a bungalow loft - £28,907

Convert a basement - £36,456