From £2,232
Col-In the Builder is a trusted extension builder serving customers in Wemyss Bay and the surrounding area. Contact us to today to get a competitiv...
From £1,576
Experienced extension builder ready to quote for your work. Glencroft Builders Ltd is the best extension builder in Wemyss Bay. No obligation free ...
From £2,512
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,192
Relax... you have found a reliable extension builder in Wemyss Bay. Adrian K Wilson Roofing Specialist is a friendly and reliable company based in ...
From £2,472
LOCHNAGAR CONSTRUCTION LTD is a trusted extension builder serving customers in Wemyss Bay and the surrounding area. Contact us to today to get a co...
From £2,304
DRUMKINNON JOINERY & BUILDING is a trusted extension builder serving customers in Wemyss Bay and the surrounding area. Contact us to today to get a...
From £2,336
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,488
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £2,328
LAKE BUILDERS LTD is an established extension buildering business in Wemyss Bay. We come highly recommended and provide competitive quotes for your...
From £2,384
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Wemyss Bay it ranges from £1,576 (Glencroft Builders Ltd based in G81) to £2,512 (Unibuild Property Services based in KA20).
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 Wemyss Bay by posting a job with HaMuch and we will send it to extension builders in Wemyss Bay.
| 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 Kilwinning | £33 | £250 |
| Install An RSJ near North Ayrshire | £33 | £250 |
| Install An RSJ near Paisley | £34 | £259 |
| Install An RSJ near Clydebank | £35 | £264 |
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 - £17,582

Two storey extension - £88,124

Build a timber frame extension - £26,082

Build a swimming pool - £81,082

Single storey extension - £56,648

Side return extension - £42,427

Install an RSJ - £2,282

Outbuilding - £10,082

Build a Mansard loft conversion - £52,082

Loft conversion - £34,523

Build a kitchen extension - £42,082

Hip to gable loft conversion - £42,082

Granny annexe - £87,082

Garden office - £10,082

Convert a Garage - £16,082

Garage - £18,582

Build a flat roof extension - £22,082

Build a dormer loft conversion - £42,082

Concrete foundations - £6,332

Convert a bungalow loft - £29,082

Convert a basement - £38,427