From £2,384
Our building services company JB All Trades Ltd has thirty-three years experience and we have been helping customers in Glasgow and the surrounding...
From £2,456
We are a full design & build consultancy offering project management services targeting small to medium residential projects such as kitchen & bath...
From £2,168
RADICAL CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in Castlemilk. We offer a competitive rate to complete all yo...
From £2,152
Relax... you have found a reliable extension builder in Castlemilk. Green Olive Projects LTD is a friendly and reliable company based in Castlemilk...
From £1,984
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in Castlem...
From £2,016
Trusted and professional extension builder in Castlemilk. Experienced in all work and keeping within budget and on quote. Reid Builders have many ...
From £2,216
Trusted and professional extension builder in Castlemilk. Experienced in all work and keeping within budget and on quote. Sdh Builders & Joiners h...
From £2,480
Relax... you have found a reliable extension builder in Castlemilk. Arkiton is a friendly and reliable company based in Castlemilk who consider no ...
From £2,152
Arkiton is one of the first combined architecture and construction companies in Glasgow, founded in 2017 by our in-house architect. Our aim is to s...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in Castlemilk it ranges from £1,592 (Premier Roofing based in G32) to £2,480 (Arkiton based in G1).
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 Castlemilk by posting a job with HaMuch and we will send it to extension builders in Castlemilk.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Rutherglen | £29 | £218 |
| Install An RSJ near Giffnock | £30 | £223 |
| Install An RSJ near Cambuslang | £29 | £213 |
| Install An RSJ near East Kilbride | £29 | £207 |
| Install An RSJ near Blantyre | £28 | £207 |
| Install An RSJ near Glasgow | £29 | £221 |
| Install An RSJ near Newton Mearns | £30 | £224 |
| Install An RSJ near Viewpark | £27 | £202 |
| Install An RSJ near Barrhead | £31 | £223 |
| Install An RSJ near Bishopbriggs | £30 | £223 |
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 - £17,460

Two storey extension - £87,940

Build a timber frame extension - £25,960

Build a swimming pool - £80,960

Single storey extension - £54,200

Side return extension - £41,050

Install an RSJ - £2,160

Outbuilding - £9,960

Build a Mansard loft conversion - £51,960

Loft conversion - £33,375

Build a kitchen extension - £41,960

Hip to gable loft conversion - £41,960

Granny annexe - £86,960

Garden office - £9,960

Convert a Garage - £15,960

Garage - £18,460

Build a flat roof extension - £21,960

Build a dormer loft conversion - £41,960

Concrete foundations - £6,210

Convert a bungalow loft - £28,960

Convert a basement - £37,050