From £2,224
Whyte homes are here to help customers who need an Extension Builder in G5. We offer a competitive rate to complete all your extension buildering j...
From £2,392
If you’ve been searching for ‘Builder’s near me’ then look no further than KB Contractors . As local Builders, we’ve established...
From £2,152
Relax... you have found a reliable extension builder in G5. Green Olive Projects LTD is a friendly and reliable company based in G5 who consider no...
From £2,480
Relax... you have found a reliable extension builder in G5. Arkiton is a friendly and reliable company based in G5 who consider no job as too big o...
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...
From £2,184
nest is an established extension buildering business in G5. We come highly recommended and provide competitive quotes for your work.
From £1,864
Need an Extension Builder in G5? J & S Autos (Glasgow) Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for...
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 £2,512
Passionate about creating special, unique property renovations.

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in G5 it ranges from £1,592 (Premier Roofing based in G32) to £2,512 (KFM Developments LTD based in G52).
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 G5 by posting a job with HaMuch and we will send it to extension builders in G5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Glasgow | £35 | £259 |
| Install An RSJ near Rutherglen | £34 | £255 |
| Install An RSJ near Giffnock | £35 | £260 |
| Install An RSJ near Cambuslang | £34 | £250 |
| Install An RSJ near Bishopbriggs | £35 | £262 |
| Install An RSJ near Blantyre | £33 | £240 |
| Install An RSJ near Bearsden | £34 | £263 |
| Install An RSJ near Renfrew | £35 | £264 |
| Install An RSJ near Newton Mearns | £35 | £263 |
| Install An RSJ near East Kilbride | £34 | £247 |
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 - £17,501

Two storey extension - £88,001

Build a timber frame extension - £26,001

Build a swimming pool - £81,001

Single storey extension - £55,016

Side return extension - £41,509

Install an RSJ - £2,201

Outbuilding - £10,001

Build a Mansard loft conversion - £52,001

Loft conversion - £33,758

Build a kitchen extension - £42,001

Hip to gable loft conversion - £42,001

Granny annexe - £87,001

Garden office - £10,001

Convert a Garage - £16,001

Garage - £18,501

Build a flat roof extension - £22,001

Build a dormer loft conversion - £42,001

Concrete foundations - £6,251

Convert a bungalow loft - £29,001

Convert a basement - £37,509