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Power Construction is an established and experienced local extension builder in Craigavon. Please contact us for a free, no obligation quote and co...
From £1,736
Experienced extension builder ready to quote for your work. Terry Design is the best extension builder in Craigavon. No obligation free quotes and ...
From £1,648
Craigavon, BT66
Trusted and professional extension builder in Craigavon. Experienced in all extension buildering work and keeping within budget and on quote. The M...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Craigavon it ranges from £1,560 (Power Construction based in BT65) to £1,736 (Terry Design based in BT62).
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 Craigavon by posting a job with HaMuch and we will send it to extension builders in Craigavon.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Craigavon | £23 | £181 |
| Install An RSJ near Waringstown | £23 | £167 |
| Install An RSJ near Banbridge | £29 | £205 |
| Install An RSJ near Maghaberry | £31 | £205 |
| Install An RSJ near Coalisland | £27 | £223 |
| Install An RSJ near Hillsborough and Culcavy | £25 | £170 |
| Install An RSJ near Lisburn | £24 | £164 |
| Install An RSJ near Crumlin | £26 | £194 |
| Install An RSJ near Dungannon | £30 | £238 |
| Install An RSJ near Ballynahinch | £19 | £189 |
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 - £16,948

Two storey extension - £87,172

Build a timber frame extension - £25,448

Build a swimming pool - £80,448

Single storey extension - £43,960

Side return extension - £35,290

Install an RSJ - £1,648

Outbuilding - £9,448

Build a Mansard loft conversion - £51,448

Loft conversion - £28,575

Build a kitchen extension - £41,448

Hip to gable loft conversion - £41,448

Granny annexe - £86,448

Garden office - £9,448

Convert a Garage - £15,448

Garage - £17,948

Build a flat roof extension - £21,448

Build a dormer loft conversion - £41,448

Concrete foundations - £5,698

Convert a bungalow loft - £28,448

Convert a basement - £31,290