Gary Mc cann
Dungannon, BT70
Need to find an Extension Builder near you for all your extension buildering work?
GMC Construction provides a local, trusted extension bui...
From £1,984
JP&S Construction Ltd is an established extension buildering business in Dungannon. We come highly recommended and provide competitive quotes for y...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Dungannon it ranges from £1,984 (JP&S Construction Ltd based in BT70) to £2,216 (GMC Construction based in BT70).
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 Dungannon by posting a job with HaMuch and we will send it to extension builders in Dungannon.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Dungannon | £30 | £238 |
| Install An RSJ near Coalisland | £27 | £223 |
| Install An RSJ near Craigavon | £23 | £181 |
| Install An RSJ near Magherafelt | £30 | £238 |
| Install An RSJ near Waringstown | £23 | £167 |
| Install An RSJ near Maghaberry | £31 | £205 |
| Install An RSJ near Dungiven | £22 | £190 |
| Install An RSJ near Banbridge | £29 | £205 |
| Install An RSJ near Crumlin | £26 | £194 |
| Install An RSJ near Strabane | £30 | £240 |
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 - £17,400

Two storey extension - £87,850

Build a timber frame extension - £25,900

Build a swimming pool - £80,900

Single storey extension - £53,000

Side return extension - £40,375

Install an RSJ - £2,100

Outbuilding - £9,900

Build a Mansard loft conversion - £51,900

Loft conversion - £32,813

Build a kitchen extension - £41,900

Hip to gable loft conversion - £41,900

Granny annexe - £86,900

Garden office - £9,900

Convert a Garage - £15,900

Garage - £18,400

Build a flat roof extension - £21,900

Build a dormer loft conversion - £41,900

Concrete foundations - £6,150

Convert a bungalow loft - £28,900

Convert a basement - £36,375