From £2,192
Need to find an Extension Builder near you for all your extension buildering work?
BAIN BUILDING COMPANY provides a local, trusted extensio...
From £2,200
Spear Renovations is a trusted extension builder serving customers in Duns and the surrounding area. Contact us to today to get a competitive quote...
From £1,584
We are a small but modern family run Buisness with several Employee's and we pay great attention to people's needs on every job we carry out, as if...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Duns it ranges from £1,584 (R MILLS ROOFING based in EH41) to £2,200 (Spear Renovations based in TD13).
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 Duns by posting a job with HaMuch and we will send it to extension builders in Duns.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Haddington | £35 | £255 |
| Install An RSJ near Scottish Borders | £35 | £287 |
| Install An RSJ near Dalkeith | £35 | £256 |
| Install An RSJ near Musselburgh | £36 | £262 |
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 - £17,292

Two storey extension - £87,688

Build a timber frame extension - £25,792

Build a swimming pool - £80,792

Single storey extension - £50,840

Side return extension - £39,160

Install an RSJ - £1,992

Outbuilding - £9,792

Build a Mansard loft conversion - £51,792

Loft conversion - £31,800

Build a kitchen extension - £41,792

Hip to gable loft conversion - £41,792

Granny annexe - £86,792

Garden office - £9,792

Convert a Garage - £15,792

Garage - £18,292

Build a flat roof extension - £21,792

Build a dormer loft conversion - £41,792

Concrete foundations - £6,042

Convert a bungalow loft - £28,792

Convert a basement - £35,160