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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...
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 Hillsborough And Culcavy. Experienced in all extension buildering work and keeping within budget and ...
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...

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 - £17,063

Two storey extension - £87,345

Build a timber frame extension - £25,563

Build a swimming pool - £80,563

Single storey extension - £46,264

Side return extension - £36,586

Install an RSJ - £1,763

Outbuilding - £9,563

Build a Mansard loft conversion - £51,563

Loft conversion - £29,655

Build a kitchen extension - £41,563

Hip to gable loft conversion - £41,563

Granny annexe - £86,563

Garden office - £9,563

Convert a Garage - £15,563

Garage - £18,063

Build a flat roof extension - £21,563

Build a dormer loft conversion - £41,563

Concrete foundations - £5,813

Convert a bungalow loft - £28,563

Convert a basement - £32,586