Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £1,800
Craig Ross
Trusted and professional extension builder in Inverclyde. Experienced in all extension buildering work and keeping within budget and on quote. CR J...
From £2,808
MARTIN POWER BUILDERS are here to help customers who need an Extension Builder in Inverclyde. We offer a competitive rate to complete all your exte...
From £2,312
Inverclyde, PA16
Need to find an Extension Builder near you for all your extension buildering work?
Price It Cost Consultants Ltd provides a local, trusted ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Inverclyde it ranges from £1,800 (CR Joiners based in G82) to £2,808 (MARTIN POWER BUILDERS based in PA16).
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 Inverclyde by posting a job with HaMuch and we will send it to extension builders in Inverclyde.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Port Glasgow | £32 | £250 |
| Install An RSJ near Greenock | £30 | £243 |
| Install An RSJ near Dumbarton | £29 | £232 |
| Install An RSJ near Renfrewshire | £54 | £398 |
| Install An RSJ near Johnstone | £52 | £381 |
| Install An RSJ near Erskine | £34 | £258 |
| Install An RSJ near Clydebank | £35 | £264 |
| Install An RSJ near Paisley | £34 | £259 |
| Install An RSJ near Renfrew | £35 | £263 |
| Install An RSJ near Barrhead | £35 | £255 |
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 - £17,652

Two storey extension - £88,228

Build a timber frame extension - £26,152

Build a swimming pool - £81,152

Single storey extension - £58,040

Side return extension - £43,210

Install an RSJ - £2,352

Outbuilding - £10,152

Build a Mansard loft conversion - £52,152

Loft conversion - £35,175

Build a kitchen extension - £42,152

Hip to gable loft conversion - £42,152

Granny annexe - £87,152

Garden office - £10,152

Convert a Garage - £16,152

Garage - £18,652

Build a flat roof extension - £22,152

Build a dormer loft conversion - £42,152

Concrete foundations - £6,402

Convert a bungalow loft - £29,152

Convert a basement - £39,210