From £22,032
Col-In the Builder is a trusted extension builder serving customers in Renfrewshire and the surrounding area. Contact us to today to get a competit...
From £22,160
Kenmure Joinery Services are here to help customers who need an Extension Builder in Renfrewshire. We offer a competitive rate to complete all your...
From £22,080
Adelphi Design & Construction Ltd is an established and experienced local extension builder in Renfrewshire. Please contact us for a free, no oblig...
From £22,296
Need an Extension Builder in Renfrewshire? Gman-Joinery & Builders has been helping local clients (20 mile radius) with their extension buildering ...
From £21,952
Relax... you have found a reliable extension builder in Renfrewshire. DS Builders is a friendly and reliable company based in Renfrewshire who cons...
From £21,928
J & J Property Services is an established extension buildering business in Renfrewshire. We come highly recommended and provide competitive quotes ...
From £21,808
Boyle Construction Glasgow Ltd is a trusted extension builder serving customers in Renfrewshire and the surrounding area. Contact us to today to ge...
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 £22,008
Experienced extension builder ready to quote for your work. Gerry Doyle Building is the best extension builder in Renfrewshire. No obligation free ...
From £22,016
Trusted and professional extension builder in Renfrewshire. Experienced in all extension buildering work and keeping within budget and on quote. Sd...

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 Renfrewshire by posting a job with HaMuch. We'll send it to extension builders in Renfrewshire.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Renfrewshire | £54 | £398 |
| Build A Flat Roof Extension near Johnstone | £52 | £381 |
| Build A Flat Roof Extension near Paisley | £34 | £259 |
| Build A Flat Roof Extension near Erskine | £34 | £258 |
| Build A Flat Roof Extension near Renfrew | £35 | £263 |
| Build A Flat Roof Extension near Barrhead | £35 | £255 |
| Build A Flat Roof Extension near Clydebank | £35 | £264 |
| Build A Flat Roof Extension near Dumbarton | £29 | £232 |
| Build A Flat Roof Extension near Greenock | £30 | £243 |
| Build A Flat Roof Extension near Port Glasgow | £32 | £250 |
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 - £17,514

Two storey extension - £88,020

Build a timber frame extension - £26,014

Build a swimming pool - £81,014

Single storey extension - £55,272

Side return extension - £41,653

Install an RSJ - £2,214

Outbuilding - £10,014

Build a Mansard loft conversion - £52,014

Loft conversion - £33,878

Build a kitchen extension - £42,014

Hip to gable loft conversion - £42,014

Granny annexe - £87,014

Garden office - £10,014

Convert a Garage - £16,014

Garage - £18,514

Build a flat roof extension - £22,014

Build a dormer loft conversion - £42,014

Concrete foundations - £6,264

Convert a bungalow loft - £29,014

Convert a basement - £37,653