From £1,600
T.I Building is a trusted extension builder serving customers in Hillsborough And Culcavy and the surrounding area. Contact us to today to get a co...
From £1,584
Relax... you have found a reliable extension builder in Hillsborough And Culcavy. Finch Construction NI is a friendly and reliable company based in...
From £1,536
Trusted and professional extension builder in Hillsborough And Culcavy. Experienced in all extension buildering work and keeping within budget and ...
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 £1,376
Trusted and professional extension builder in Hillsborough And Culcavy. Experienced in all extension buildering work and keeping within budget and ...
From £1,648
Trusted and professional extension builder in Hillsborough And Culcavy. Experienced in all extension buildering work and keeping within budget and ...
From £1,568
Relax... you have found a reliable extension builder in Hillsborough And Culcavy. SM Plumbing & Heating is a friendly and reliable company based in...
From £1,560
Power Construction is an established and experienced local extension builder in Hillsborough And Culcavy. Please contact us for a free, no obligati...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Hillsborough And Culcavy 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 Hillsborough And Culcavy by posting a job with HaMuch and we will send it to extension builders in Hillsborough And Culcavy.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Hillsborough and Culcavy | £25 | £170 |
| Install An RSJ near Lisburn | £24 | £164 |
| Install An RSJ near Maghaberry | £31 | £205 |
| Install An RSJ near Carryduff | £23 | £158 |
| Install An RSJ near Waringstown | £23 | £167 |
| Install An RSJ near Ballynahinch | £19 | £189 |
| Install An RSJ near Saintfield | £23 | £162 |
| Install An RSJ near Belfast | £23 | £161 |
| Install An RSJ near Crumlin | £26 | £194 |
| Install An RSJ near Banbridge | £29 | £205 |
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 - £16,966

Two storey extension - £87,198

Build a timber frame extension - £25,466

Build a swimming pool - £80,466

Single storey extension - £44,312

Side return extension - £35,488

Install an RSJ - £1,666

Outbuilding - £9,466

Build a Mansard loft conversion - £51,466

Loft conversion - £28,740

Build a kitchen extension - £41,466

Hip to gable loft conversion - £41,466

Granny annexe - £86,466

Garden office - £9,466

Convert a Garage - £15,466

Garage - £17,966

Build a flat roof extension - £21,466

Build a dormer loft conversion - £41,466

Concrete foundations - £5,716

Convert a bungalow loft - £28,466

Convert a basement - £31,488