From £1,632
We have over 25 years experience in all building work and renowned for good workmanship All jobs small and large taken on
From £1,696
Trusted and professional extension builder in Cargan. Experienced in all work and keeping within budget and on quote. purdy build have many happy ...
From £1,496
Been in business as 18 years alway put clients first and never had any combacks
From £1,176
Have worked in building industry for over 30 years contracts from government to private sector.
From £1,576
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Cargan ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Cargan it ranges from £1,176 (Anak based in BT40) to £1,696 (Purdy build based in bt53).
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 Cargan by posting a job with HaMuch and we will send it to extension builders in Cargan.
"RSJ installation, I am looking for a price to source and install two beams, photos attached of measurements. Thanks." - BT43
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Ballyclare | £17 | £110 |
| Install An RSJ near Ballymoney | £18 | £163 |
| Install An RSJ near Magherafelt | £25 | £200 |
| Install An RSJ near Larne | £15 | £120 |
| Install An RSJ near Crumlin | £22 | £168 |
| Install An RSJ near Coleraine | £21 | £181 |
| Install An RSJ near Greenisland | £20 | £134 |
| Install An RSJ near Carrickfergus | £21 | £145 |
| Install An RSJ near Belfast | £20 | £137 |
| Install An RSJ near Holywood | £20 | £138 |
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 - £16,815

Two storey extension - £86,973

Build a timber frame extension - £25,315

Build a swimming pool - £80,315

Single storey extension - £41,304

Side return extension - £33,796

Install an RSJ - £1,515

Outbuilding - £9,315

Build a Mansard loft conversion - £51,315

Loft conversion - £27,330

Build a kitchen extension - £41,315

Hip to gable loft conversion - £41,315

Granny annexe - £86,315

Garden office - £9,315

Convert a Garage - £15,315

Garage - £17,815

Build a flat roof extension - £21,315

Build a dormer loft conversion - £41,315

Concrete foundations - £5,565

Convert a bungalow loft - £28,315

Convert a basement - £29,796