From £2,192
Need to find an Extension Builder near you for all your extension buildering work?
A B Building Roofing Services provides a local, trusted ...
From £1,520
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,152
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,152
We offer a range of building services that are tailored to meet the specific needs of our clients. Whether you are looking to extend your home, con...
From £2,240
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,200
Honest, reliable, experienced building/civil engineering contractor established in 2001.
From £2,224
JG Design & Build is an established extension buildering business in DE56. We come highly recommended and provide competitive quotes for your work....
From £2,056
Relax... you have found a reliable extension builder in DE56. Bennett Damp Proofing & Timber is a friendly and reliable company based in DE56 who c...
From £2,088
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,136
Need an Extension Builder in DE56? Patrick David Building Services Limited has been helping local clients (20 mile radius) with their extension bui...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in DE56 it ranges from £1,200 (HUSKINSON CONSTR SRVCS LTD based in NG16) to £2,240 (IH Properties Ltd based in LE67).
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 DE56 by posting a job with HaMuch and we will send it to extension builders in DE56.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Belper | £32 | £244 |
| Install An RSJ near Amber Valley | £32 | £244 |
| Install An RSJ near Ripley | £32 | £246 |
| Install An RSJ near Heanor | £31 | £236 |
| Install An RSJ near Derby | £29 | £227 |
| Install An RSJ near Alfreton | £34 | £261 |
| Install An RSJ near Ilkeston | £31 | £236 |
| Install An RSJ near Erewash | £31 | £234 |
| Install An RSJ near Broxtowe | £34 | £240 |
| Install An RSJ near Ashfield | £34 | £270 |
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