From £22,160
Kenmure Joinery Services are here to help customers who need an Extension Builder in G1. We offer a competitive rate to complete all your extension...
From £22,080
Adelphi Design & Construction Ltd is an established and experienced local extension builder in G1. Please contact us for a free, no obligation quot...
From £22,296
Need an Extension Builder in G1? Gman-Joinery & Builders has been helping local clients (20 mile radius) with their extension buildering jobs for m...
From £21,952
Relax... you have found a reliable extension builder in G1. DS Builders is a friendly and reliable company based in G1 who consider no job as too b...
From £21,928
J & J Property Services is an established extension buildering business in G1. We come highly recommended and provide competitive quotes for your w...
From £21,808
Boyle Construction Glasgow Ltd is a trusted extension builder serving customers in G1 and the surrounding area. Contact us to today to get a compet...
From £22,120
Relax... you have found a reliable extension builder in G1. Roughcasting is a friendly and reliable company based in G1 who consider no job as too ...
From £21,856
Need to find an Extension Builder near you for all your extension buildering work?
Montgomery Wet Trades provides a local, trusted extensio...
From £21,848
Need an Extension Builder in G1? Collum & Scott Roughcasting has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £22,008
Experienced extension builder ready to quote for your work. Gerry Doyle Building is the best extension builder in G1. No obligation free quotes and...

A flat roof extension ranges from the cheapest of £21,808 (Boyle Construction Glasgow Ltd based in G77) to the dearest of £22,296 (Gman-Joinery & Builders based in G13), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in G1 by posting a job with HaMuch. We'll send it to extension builders in G1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Glasgow | £35 | £259 |
| Build A Flat Roof Extension near Rutherglen | £34 | £255 |
| Build A Flat Roof Extension near Bishopbriggs | £35 | £262 |
| Build A Flat Roof Extension near Cambuslang | £34 | £250 |
| Build A Flat Roof Extension near Giffnock | £35 | £260 |
| Build A Flat Roof Extension near Bearsden | £34 | £263 |
| Build A Flat Roof Extension near Renfrew | £35 | £263 |
| Build A Flat Roof Extension near Blantyre | £33 | £240 |
| Build A Flat Roof Extension near Kirkintilloch | £35 | £259 |
| Build A Flat Roof Extension near Paisley | £34 | £259 |
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 - £17,506

Two storey extension - £88,008

Build a timber frame extension - £26,006

Build a swimming pool - £81,006

Single storey extension - £55,112

Side return extension - £41,563

Install an RSJ - £2,206

Outbuilding - £10,006

Build a Mansard loft conversion - £52,006

Loft conversion - £33,803

Build a kitchen extension - £42,006

Hip to gable loft conversion - £42,006

Granny annexe - £87,006

Garden office - £10,006

Convert a Garage - £16,006

Garage - £18,506

Build a flat roof extension - £22,006

Build a dormer loft conversion - £42,006

Concrete foundations - £6,256

Convert a bungalow loft - £29,006

Convert a basement - £37,563