New Haven Construction Group Ltd is an established extension buildering business in NP16. We come highly recommended and provide competitive quotes...
From £2,000
Need to find an Extension Builder near you for all your extension buildering work?
R & G Taylor Builders provides a local, trusted extensio...
From £2,064
Need an Extension Builder in NP16? Milliner Construction has been helping local clients (20 mile radius) with their extension buildering jobs for m...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in NP16 it ranges from £2,000 (R & G Taylor Builders based in NP16) to £2,072 (New Haven Construction Group Ltd based in NP16).
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 NP16 by posting a job with HaMuch and we will send it to extension builders in NP16.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Bradley Stoke | £34 | £259 |
| Install An RSJ near Portishead | £33 | £247 |
| Install An RSJ near South Gloucestershire | £34 | £260 |
| Install An RSJ near Clifton | £33 | £255 |
| Install An RSJ near Yate | £34 | £263 |
| Install An RSJ near Newport | £41 | £233 |
| Install An RSJ near Bristol | £33 | £255 |
| Install An RSJ near Cwmbran | £43 | £219 |
| Install An RSJ near Kingswood | £34 | £257 |
| Install An RSJ near Pontypool | £30 | £210 |
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 - £17,345

Two storey extension - £87,768

Build a timber frame extension - £25,845

Build a swimming pool - £80,845

Single storey extension - £51,907

Side return extension - £39,760

Install an RSJ - £2,045

Outbuilding - £9,845

Build a Mansard loft conversion - £51,845

Loft conversion - £32,300

Build a kitchen extension - £41,845

Hip to gable loft conversion - £41,845

Granny annexe - £86,845

Garden office - £9,845

Convert a Garage - £15,845

Garage - £18,345

Build a flat roof extension - £21,845

Build a dormer loft conversion - £41,845

Concrete foundations - £6,095

Convert a bungalow loft - £28,845

Convert a basement - £35,760