From £3,816
Matt Minson
At MM and Co Roofing we specialise in all aspects of the roofing industry from moss removal to complete re-roofing. We are experienced in working o...
From £2,096
Paul Martyn
PAULMARTYN Construction are here to help customers who need an Extension Builder in GU6. We offer a competitive rate to complete all your extension...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in GU6 it ranges from £2,096 (PAULMARTYN Construction based in GU6) to £3,816 (MM and Co Roofing based in GU5).
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 GU6 by posting a job with HaMuch and we will send it to extension builders in GU6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Guildford | £53 | £298 |
| Install An RSJ near Waverley | £68 | £313 |
| Install An RSJ near Horsham | £38 | £265 |
| Install An RSJ near Great Bookham | £42 | £281 |
| Install An RSJ near Woking | £43 | £277 |
| Install An RSJ near Ash Vale | £41 | £277 |
| Install An RSJ near Reigate | £40 | £270 |
| Install An RSJ near Horley | £38 | £258 |
| Install An RSJ near Crawley | £38 | £255 |
| Install An RSJ near Aldershot | £41 | £275 |
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 - £18,256

Two storey extension - £89,134

Build a timber frame extension - £26,756

Build a swimming pool - £81,756

Single storey extension - £70,120

Side return extension - £50,005

Install an RSJ - £2,956

Outbuilding - £10,756

Build a Mansard loft conversion - £52,756

Loft conversion - £40,838

Build a kitchen extension - £42,756

Hip to gable loft conversion - £42,756

Granny annexe - £87,756

Garden office - £10,756

Convert a Garage - £16,756

Garage - £19,256

Build a flat roof extension - £22,756

Build a dormer loft conversion - £42,756

Concrete foundations - £7,006

Convert a bungalow loft - £29,756

Convert a basement - £46,005