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G Wager Building Maintenance is a trusted extension builder serving customers in Neath Port Talbot and the surrounding area. Contact us to today to...
Relax... you have found a reliable extension builder in Neath Port Talbot. Cwtch Property Developments is a friendly and reliable company based in ...
Karina Lane Construction Ltd are here to help customers who need an Extension Builder in Neath Port Talbot. We offer a competitive rate to complete...
Evans Home Improvements are here to help customers who need an Extension Builder in Neath Port Talbot. We offer a competitive rate to complete all ...
Trusted and professional extension builder in Neath Port Talbot. Experienced in all extension buildering work and keeping within budget and on quot...
Need an Extension Builder in Neath Port Talbot? K.D.L Property Maintenance has been helping local clients (20 mile radius) with their extension bui...
Marin Hughes General Builders is a trusted extension builder serving customers in Neath Port Talbot and the surrounding area. Contact us to today t...
SS BUILDER are here to help customers who need an Extension Builder in Neath Port Talbot. We offer a competitive rate to complete all your extensio...
Trusted and professional extension builder in Neath Port Talbot. Experienced in all extension buildering work and keeping within budget and on quot...
A Room at the Top are here to help customers who need an Extension Builder in Neath Port Talbot. We offer a competitive rate to complete all your e...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Neath Port Talbot it ranges from £1,776 (Cwtch Property Developments based in CF34) to £2,176 (HALL & HARRIS CONSTRUCTION based in SA11).
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 Neath Port Talbot by posting a job with HaMuch and we will send it to extension builders in Neath Port Talbot.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Neath Port Talbot | £31 | £224 |
| Install An RSJ near Neath | £30 | £225 |
| Install An RSJ near Maesteg | £38 | £283 |
| Install An RSJ near Port Talbot | £31 | £227 |
| Install An RSJ near Swansea | £29 | £229 |
| Install An RSJ near Pyle | £34 | £262 |
| Install An RSJ near Aberdare | £32 | £212 |
| Install An RSJ near Rhondda, Cynon, Taff | £31 | £209 |
| Install An RSJ near Gorseinon | £29 | £228 |
| Install An RSJ near Rhondda | £31 | £206 |
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 - £17,306

Two storey extension - £87,708

Build a timber frame extension - £25,806

Build a swimming pool - £80,806

Single storey extension - £51,112

Side return extension - £39,313

Install an RSJ - £2,006

Outbuilding - £9,806

Build a Mansard loft conversion - £51,806

Loft conversion - £31,928

Build a kitchen extension - £41,806

Hip to gable loft conversion - £41,806

Granny annexe - £86,806

Garden office - £9,806

Convert a Garage - £15,806

Garage - £18,306

Build a flat roof extension - £21,806

Build a dormer loft conversion - £41,806

Concrete foundations - £6,056

Convert a bungalow loft - £28,806

Convert a basement - £35,313