From £1,840
Banbridge, BT32
With extensive extension buildering experience, we provide reliable, high-quality workmanship at competitive prices. G K Contracts Building & Joine...
From £1,648
Trusted and professional extension builder in Banbridge. Experienced in all extension buildering work and keeping within budget and on quote. The M...
From £1,560
Power Construction is an established and experienced local extension builder in Banbridge. 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 Banbridge. No obligation free quotes and ...
From £1,600
T.I Building is a trusted extension builder serving customers in Banbridge and the surrounding area. Contact us to today to get a competitive quote...
From £1,584
Relax... you have found a reliable extension builder in Banbridge. Finch Construction NI is a friendly and reliable company based in Banbridge who ...
From £1,712
N W Doyle & Son is a trusted extension builder serving customers in Banbridge and the surrounding area. Contact us to today to get a competitive qu...
From £1,336
Need to find an Extension Builder near you for all your extension buildering work?
Mount Oriel Conversions & Extensions provides a local, t...
From £1,536
Trusted and professional extension builder in Banbridge. Experienced in all extension buildering work and keeping within budget and on quote. Belfa...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Banbridge it ranges from £1,336 (Mount Oriel Conversions & Extensions based in BT8) 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 Banbridge by posting a job with HaMuch and we will send it to extension builders in Banbridge.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Banbridge | £29 | £205 |
| Install An RSJ near Waringstown | £23 | £167 |
| Install An RSJ near Craigavon | £23 | £181 |
| Install An RSJ near Hillsborough and Culcavy | £25 | £170 |
| Install An RSJ near Maghaberry | £31 | £205 |
| Install An RSJ near Lisburn | £24 | £164 |
| Install An RSJ near Ballynahinch | £19 | £189 |
| Install An RSJ near Saintfield | £23 | £162 |
| Install An RSJ near Carryduff | £23 | £158 |
| Install An RSJ near Crumlin | £26 | £194 |
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 - £17,031

Two storey extension - £87,297

Build a timber frame extension - £25,531

Build a swimming pool - £80,531

Single storey extension - £45,624

Side return extension - £36,226

Install an RSJ - £1,731

Outbuilding - £9,531

Build a Mansard loft conversion - £51,531

Loft conversion - £29,355

Build a kitchen extension - £41,531

Hip to gable loft conversion - £41,531

Granny annexe - £86,531

Garden office - £9,531

Convert a Garage - £15,531

Garage - £18,031

Build a flat roof extension - £21,531

Build a dormer loft conversion - £41,531

Concrete foundations - £5,781

Convert a bungalow loft - £28,531

Convert a basement - £32,226