From £1,832
Partek Site Services is an established and experienced local extension builder in DL2. Please contact us for a free, no obligation quote and compet...
From £1,960
Trusted and professional extension builder in DL2. Experienced in all extension buildering work and keeping within budget and on quote. D & G Build...
From £2,408
Experienced extension builder ready to quote for your work. pidesigns is the best extension builder in DL2. No obligation free quotes and many happ...
From £2,024
Experienced extension builder ready to quote for your work. AW Building Projects North East Ltd is the best extension builder in DL2. No obligation...
From £2,048
Need to find an Extension Builder near you for all your extension buildering work?
ANWEN CONSTRUCTION provides a local, trusted extension b...
From £2,080
Relax... you have found a reliable extension builder in DL2. Under Pressure is a friendly and reliable company based in DL2 who consider no job as ...
From £1,936
Need an Extension Builder in DL2? Northern Roofline Solutions has been helping local clients (20 mile radius) with their extension buildering jobs ...
From £2,120
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,840
Lee Construction (LDG) Ltd is a trusted extension builder serving customers in DL2 and the surrounding area. Contact us to today to get a competiti...
From £1,928
GURKHA CONSTRUCTION SVCS LTD is a trusted extension builder serving customers in DL2 and the surrounding area. Contact us to today to get a competi...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DL2 it ranges from £1,832 (Partek Site Services based in DL2) 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 DL2 by posting a job with HaMuch and we will send it to extension builders in DL2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Darlington | £60 | £222 |
| Install An RSJ near Newton Aycliffe | £39 | £227 |
| Install An RSJ near Bishop Auckland | £39 | £247 |
| Install An RSJ near Stockton-on-Tees | £40 | £226 |
| Install An RSJ near Spennymoor | £38 | £248 |
| Install An RSJ near Ingleby Barwick | £41 | £227 |
| Install An RSJ near Thornaby-on-Tees | £41 | £230 |
| Install An RSJ near Billingham | £43 | £240 |
| Install An RSJ near Middlesbrough | £42 | £235 |
| Install An RSJ near Durham | £47 | £267 |
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 - £17,318

Two storey extension - £87,726

Build a timber frame extension - £25,818

Build a swimming pool - £80,818

Single storey extension - £51,352

Side return extension - £39,448

Install an RSJ - £2,018

Outbuilding - £9,818

Build a Mansard loft conversion - £51,818

Loft conversion - £32,040

Build a kitchen extension - £41,818

Hip to gable loft conversion - £41,818

Granny annexe - £86,818

Garden office - £9,818

Convert a Garage - £15,818

Garage - £18,318

Build a flat roof extension - £21,818

Build a dormer loft conversion - £41,818

Concrete foundations - £6,068

Convert a bungalow loft - £28,818

Convert a basement - £35,448