From £22,160
Kenmure Joinery Services are here to help customers who need an Extension Builder in Port Glasgow. 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 Port Glasgow. Please contact us for a free, no oblig...
From £22,296
Need an Extension Builder in Port Glasgow? 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 Port Glasgow. DS Builders is a friendly and reliable company based in Port Glasgow who cons...
From £21,928
J & J Property Services is an established extension buildering business in Port Glasgow. We come highly recommended and provide competitive quotes ...
From £21,808
Boyle Construction Glasgow Ltd is a trusted extension builder serving customers in Port Glasgow and the surrounding area. Contact us to today to ge...
From £21,376
Experienced extension builder ready to quote for your work. Glencroft Builders Ltd is the best extension builder in Port Glasgow. No obligation fre...
From £22,312
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,992
Relax... you have found a reliable extension builder in Port Glasgow. Adrian K Wilson Roofing Specialist is a friendly and reliable company based i...
From £22,288
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

A flat roof extension ranges from the cheapest of £21,376 (Glencroft Builders Ltd based in G81) to the dearest of £22,312 (Unibuild Property Services based in KA20), 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 Port Glasgow by posting a job with HaMuch. We'll send it to extension builders in Port Glasgow.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Port Glasgow | £32 | £250 |
| Build A Flat Roof Extension near Greenock | £30 | £243 |
| Build A Flat Roof Extension near Dumbarton | £29 | £232 |
| Build A Flat Roof Extension near Renfrewshire | £54 | £398 |
| Build A Flat Roof Extension near Erskine | £34 | £258 |
| Build A Flat Roof Extension near Johnstone | £52 | £381 |
| Build A Flat Roof Extension near Clydebank | £35 | £264 |
| Build A Flat Roof Extension near Renfrew | £35 | £263 |
| Build A Flat Roof Extension near Paisley | £34 | £259 |
| Build A Flat Roof Extension near Bearsden | £34 | £263 |
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 - £17,519

Two storey extension - £88,029

Build a timber frame extension - £26,019

Build a swimming pool - £81,019

Single storey extension - £55,384

Side return extension - £41,716

Install an RSJ - £2,219

Outbuilding - £10,019

Build a Mansard loft conversion - £52,019

Loft conversion - £33,930

Build a kitchen extension - £42,019

Hip to gable loft conversion - £42,019

Granny annexe - £87,019

Garden office - £10,019

Convert a Garage - £16,019

Garage - £18,519

Build a flat roof extension - £22,019

Build a dormer loft conversion - £42,019

Concrete foundations - £6,269

Convert a bungalow loft - £29,019

Convert a basement - £37,716