From £1,840
With extensive extension buildering experience, we provide reliable, high-quality workmanship at competitive prices. G K Contracts Building & Joine...
From £1,560
Power Construction is an established and experienced local extension builder in Richhill. Please contact us for a free, no obligation quote and com...
From £2,216
Need to find an Extension Builder near you for all your extension buildering work?
GMC Construction provides a local, trusted extension bui...
From £1,736
Experienced extension builder ready to quote for your work. Terry Design is the best extension builder in Richhill. No obligation free quotes and m...
From £1,648
Trusted and professional extension builder in Richhill. Experienced in all extension buildering work and keeping within budget and on quote. The Me...
From £1,984
JP&S Construction Ltd is an established extension buildering business in Richhill. We come highly recommended and provide competitive quotes for yo...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Richhill it ranges from £1,560 (Power Construction based in BT65) to £2,760 (Build a Boiler based in BT67).
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 Richhill by posting a job with HaMuch and we will send it to extension builders in Richhill.
| 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 Coalisland | £27 | £223 |
| Install An RSJ near Dungannon | £30 | £238 |
| Install An RSJ near Maghaberry | £31 | £205 |
| 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 Magherafelt | £30 | £238 |
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 - £17,263

Two storey extension - £87,645

Build a timber frame extension - £25,763

Build a swimming pool - £80,763

Single storey extension - £50,269

Side return extension - £38,839

Install an RSJ - £1,963

Outbuilding - £9,763

Build a Mansard loft conversion - £51,763

Loft conversion - £31,532

Build a kitchen extension - £41,763

Hip to gable loft conversion - £41,763

Granny annexe - £86,763

Garden office - £9,763

Convert a Garage - £15,763

Garage - £18,263

Build a flat roof extension - £21,763

Build a dormer loft conversion - £41,763

Concrete foundations - £6,013

Convert a bungalow loft - £28,763

Convert a basement - £34,839