From £1,992
Shane Griffiths & Son Ltd is a trusted extension builder serving customers in Llangybi and the surrounding area. Contact us to today to get a compe...
From £1,496
Hi my name is Deri
I'm a friendly and reliable and have over 20 yes experience in the building trade. And also come from a family backgr...
From £1,912
Chartered construction manager with thirty five years in the construction industry. High standards of workmanship, customer focused. Honest, reliab...
From £1,816
Experienced extension builder ready to quote for your work. DRAGON CONSTRUCTION T/A is the best extension builder in Llangybi. No obligation free q...
From £1,872
SC CONSTRUCTION is an established and experienced local extension builder in Llangybi. Please contact us for a free, no obligation quote and compet...
From £1,808
Our building services company SP Coupland Ltd have thirty-eight years’ experience and have been helping customers in Sir Ceredigion and the surro...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Llangybi it ranges from £1,496 (DERI BROWN T/A D Brown Building Services based in SA44) to £1,992 (Shane Griffiths & Son Ltd based in SA44).
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 Llangybi by posting a job with HaMuch and we will send it to extension builders in Llangybi.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Carmarthen | £26 | £205 |
| Install An RSJ near Carmarthenshire | £26 | £205 |
| Install An RSJ near Aberdare | £32 | £212 |
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 - £17,116

Two storey extension - £87,424

Build a timber frame extension - £25,616

Build a swimming pool - £80,616

Single storey extension - £47,320

Side return extension - £37,180

Install an RSJ - £1,816

Outbuilding - £9,616

Build a Mansard loft conversion - £51,616

Loft conversion - £30,150

Build a kitchen extension - £41,616

Hip to gable loft conversion - £41,616

Granny annexe - £86,616

Garden office - £9,616

Convert a Garage - £15,616

Garage - £18,116

Build a flat roof extension - £21,616

Build a dormer loft conversion - £41,616

Concrete foundations - £5,866

Convert a bungalow loft - £28,616

Convert a basement - £33,180