From £1,576
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,464
Trusted and professional extension builder in Ballyclare. Experienced in all extension buildering work and keeping within budget and on quote. DGA ...
From £1,496
Ballantine building solutions is an established extension buildering business in Ballyclare. We come highly recommended and provide competitive quo...
From £1,584
Designco Ltd is an established extension buildering business in Ballyclare. We come highly recommended and provide competitive quotes for your work...
From £1,176
Have worked in building industry for over 30 years contracts from government to private sector.
From £1,568
Relax... you have found a reliable extension builder in Ballyclare. SM Plumbing & Heating is a friendly and reliable company based in Ballyclare wh...
From £1,376
Trusted and professional extension builder in Ballyclare. Experienced in all extension buildering work and keeping within budget and on quote. Exte...
From £1,408
Need an Extension Builder in Ballyclare? MIRKOW has been helping local clients (20 mile radius) with their extension buildering jobs for many years...
From £1,536
Trusted and professional extension builder in Ballyclare. Experienced in all extension buildering work and keeping within budget and on quote. Belf...
From £1,536
Need an Extension Builder in Ballyclare? H.M.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Ballyclare it ranges from £1,176 (Anak based in BT40) to £1,584 (Designco Ltd based in BT36).
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 Ballyclare by posting a job with HaMuch and we will send it to extension builders in Ballyclare.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ballyclare | £20 | £124 |
| Install An RSJ near Greenisland | £23 | £153 |
| Install An RSJ near Carrickfergus | £23 | £158 |
| Install An RSJ near Larne | £15 | £122 |
| Install An RSJ near Holywood | £23 | £159 |
| Install An RSJ near Belfast | £23 | £161 |
| Install An RSJ near Crumlin | £26 | £194 |
| Install An RSJ near Carryduff | £23 | £158 |
| Install An RSJ near Bangor | £24 | £183 |
| Install An RSJ near Bangor | £24 | £183 |
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 - £16,772

Two storey extension - £86,908

Build a timber frame extension - £25,272

Build a swimming pool - £80,272

Single storey extension - £40,440

Side return extension - £33,310

Install an RSJ - £1,472

Outbuilding - £9,272

Build a Mansard loft conversion - £51,272

Loft conversion - £26,925

Build a kitchen extension - £41,272

Hip to gable loft conversion - £41,272

Granny annexe - £86,272

Garden office - £9,272

Convert a Garage - £15,272

Garage - £17,772

Build a flat roof extension - £21,272

Build a dormer loft conversion - £41,272

Concrete foundations - £5,522

Convert a bungalow loft - £28,272

Convert a basement - £29,310