Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Totally unreliable, takes your money and doesn't finish the job." - NORTH EAST,reviewed 04/10/17, L S
Trusted and professional extension builder in Sedgefield. Experienced in all extension buildering work and keeping within budget and on quote. D & ...
Trusted and professional extension builder in Sedgefield. Experienced in all extension buildering work and keeping within budget and on quote. Empi...
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 £2,408
Experienced extension builder ready to quote for your work. pidesigns is the best extension builder in Sedgefield. No obligation free quotes and ma...
From £2,136
Design Consultancy & Construction Services Ltd are here to help customers who need an Extension Builder in Sedgefield. We offer a competitive rate ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Sedgefield it ranges from £1,944 (Empire Building Contracts based in TS18) to £2,464 (Heritage NE Ltd based in DL17).
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 Sedgefield by posting a job with HaMuch and we will send it to extension builders in Sedgefield.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Stockton-on-Tees | £41 | £228 |
| Install An RSJ near Billingham | £44 | £242 |
| Install An RSJ near Newton Aycliffe | £38 | £225 |
| Install An RSJ near Thornaby-on-Tees | £42 | £231 |
| Install An RSJ near Middlesbrough | £43 | £236 |
| Install An RSJ near Ingleby Barwick | £41 | £228 |
| Install An RSJ near Spennymoor | £37 | £249 |
| Install An RSJ near Darlington | £60 | £222 |
| Install An RSJ near Hartlepool | £40 | £236 |
| Install An RSJ near Peterlee | £36 | £230 |
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 - £17,451

Two storey extension - £87,926

Build a timber frame extension - £25,951

Build a swimming pool - £80,951

Single storey extension - £54,017

Side return extension - £40,947

Install an RSJ - £2,151

Outbuilding - £9,951

Build a Mansard loft conversion - £51,951

Loft conversion - £33,289

Build a kitchen extension - £41,951

Hip to gable loft conversion - £41,951

Granny annexe - £86,951

Garden office - £9,951

Convert a Garage - £15,951

Garage - £18,451

Build a flat roof extension - £21,951

Build a dormer loft conversion - £41,951

Concrete foundations - £6,201

Convert a bungalow loft - £28,951

Convert a basement - £36,947