From £30,450
Glenavon Joinery & Construction Services Ltd is an established extension buildering business in Castlemilk. We come highly recommended and provide ...
From £34,050
Relax... you have found a reliable extension builder in Castlemilk. P & N Joiners & Builders is a friendly and reliable company based in Castlemilk...
From £35,250
Kenmure Joinery Services are here to help customers who need an Extension Builder in Castlemilk. We offer a competitive rate to complete all your e...
From £33,300
Relax... you have found a reliable extension builder in Castlemilk. DS Builders is a friendly and reliable company based in Castlemilk who consider...
From £33,825
Experienced extension builder ready to quote for your work. Gerry Doyle Building is the best extension builder in Castlemilk. No obligation free qu...
From £33,075
J & J Property Services is an established extension buildering business in Castlemilk. We come highly recommended and provide competitive quotes fo...
From £34,500
Adelphi Design & Construction Ltd is an established and experienced local extension builder in Castlemilk. Please contact us for a free, no obligat...
From £36,525
Need an Extension Builder in Castlemilk? Gman-Joinery & Builders has been helping local clients (20 mile radius) with their extension buildering jo...
From £31,950
Boyle Construction Glasgow Ltd is a trusted extension builder serving customers in Castlemilk and the surrounding area. Contact us to today to get ...
From £34,875
Relax... you have found a reliable extension builder in Castlemilk. Roughcasting is a friendly and reliable company based in Castlemilk who conside...

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in Castlemilk by posting your job to extension builders in Castlemilk.
"Attic conversion. Flooring, windows, insulation. 1950s terraced house in shawlands glasgow" - G41, job posted 01/01/70
"Loft conversion" - GLASGOW, job posted 07/08/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Rutherglen | £34 | £255 |
| Loft Conversion near Giffnock | £35 | £260 |
| Loft Conversion near Cambuslang | £34 | £250 |
| Loft Conversion near East Kilbride | £34 | £247 |
| Loft Conversion near Blantyre | £33 | £240 |
| Loft Conversion near Glasgow | £35 | £259 |
| Loft Conversion near Newton Mearns | £35 | £263 |
| Loft Conversion near Viewpark | £31 | £233 |
| Loft Conversion near Barrhead | £35 | £255 |
| Loft Conversion near Bishopbriggs | £35 | £262 |
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 - £17,503

Two storey extension - £88,005

Build a timber frame extension - £26,003

Build a swimming pool - £81,003

Single storey extension - £55,064

Side return extension - £41,536

Install an RSJ - £2,203

Outbuilding - £10,003

Build a Mansard loft conversion - £52,003

Loft conversion - £33,780

Build a kitchen extension - £42,003

Hip to gable loft conversion - £42,003

Granny annexe - £87,003

Garden office - £10,003

Convert a Garage - £16,003

Garage - £18,503

Build a flat roof extension - £22,003

Build a dormer loft conversion - £42,003

Concrete foundations - £6,253

Convert a bungalow loft - £29,003

Convert a basement - £37,536