We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
Relax... you have found a reliable extension builder in CF72. WESTGATE BUILDING SERVICES LTD is a friendly and reliable company based in CF72 who c...
S J S Services (Wales) Ltd is a trusted extension builder serving customers in CF72 and the surrounding area. Contact us to today to get a competit...
From £1,816
Excel Home Design Ltd is an established extension buildering business in CF72. We come highly recommended and provide competitive quotes for your w...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in CF72 it ranges from £1,816 (Excel Home Design Ltd based in CF39) to £1,992 (J.S. Builders based in CF39).
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 CF72 by posting a job with HaMuch and we will send it to extension builders in CF72.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Church Village | £34 | £214 |
| Install An RSJ near Pontypridd | £33 | £211 |
| Install An RSJ near Rhondda | £31 | £206 |
| Install An RSJ near Bridgend | £32 | £200 |
| Install An RSJ near Rhondda, Cynon, Taff | £31 | £209 |
| Install An RSJ near Caerphilly | £33 | £208 |
| Install An RSJ near Vale of Glamorgan | £29 | £217 |
| Install An RSJ near Barry | £33 | £223 |
| Install An RSJ near Cardiff | £34 | £219 |
| Install An RSJ near Penarth | £35 | £219 |
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 - £17,228

Two storey extension - £87,592

Build a timber frame extension - £25,728

Build a swimming pool - £80,728

Single storey extension - £49,560

Side return extension - £38,440

Install an RSJ - £1,928

Outbuilding - £9,728

Build a Mansard loft conversion - £51,728

Loft conversion - £31,200

Build a kitchen extension - £41,728

Hip to gable loft conversion - £41,728

Granny annexe - £86,728

Garden office - £9,728

Convert a Garage - £15,728

Garage - £18,228

Build a flat roof extension - £21,728

Build a dormer loft conversion - £41,728

Concrete foundations - £5,978

Convert a bungalow loft - £28,728

Convert a basement - £34,440