From £21,744
ABG Resin Bond & Landscaping Ltd have been transforming driveways for many years, laying tarmac and installing block-paving, fence...
From £21,648
Glenavon Joinery & Construction Services Ltd is an established extension buildering business in Cumnock. We come highly recommended and provide com...
From £21,936
H & C JOINERS & BUILDERS LTD is an established and experienced local extension builder in Cumnock. Please contact us for a free, no obligation quot...
From £22,288
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,112
Trusted and professional extension builder in Cumnock. Experienced in all extension buildering work and keeping within budget and on quote. Murdoch...
From £21,776
BURNSIDE DESIGN & BUILD LTD is a trusted extension builder serving customers in Cumnock and the surrounding area. Contact us to today to get a comp...
From £22,000
SKED CONSTRUCTION LTD are here to help customers who need an Extension Builder in Cumnock. We offer a competitive rate to complete all your extensi...
From £22,160
Need to find an Extension Builder near you for all your extension buildering work?
Shire Design & Build Ltd. provides a local, trusted exte...
From £21,920
Andrew Wright Windows Ltd -Independent Network Installer is a trusted extension builder serving customers in Cumnock and the surrounding area. Cont...
From £21,904
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 £21,648 (Glenavon Joinery & Construction Services Ltd based in ML10) to the dearest of £22,288 (BMB BUILDERS based in KA3), 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 Cumnock by posting a job with HaMuch. We'll send it to extension builders in Cumnock.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Kilmarnock | £36 | £271 |
| Build A Flat Roof Extension near Prestwick | £24 | £180 |
| Build A Flat Roof Extension near Ayr | £25 | £190 |
| Build A Flat Roof Extension near South Ayrshire | £25 | £190 |
| Build A Flat Roof Extension near Troon | £32 | £241 |
| Build A Flat Roof Extension near Irvine | £35 | £253 |
| Build A Flat Roof Extension near Larkhall | £31 | £237 |
| Build A Flat Roof Extension near East Kilbride | £34 | £247 |
| Build A Flat Roof Extension near Newton Mearns | £35 | £263 |
| Build A Flat Roof Extension near Kilwinning | £33 | £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 - £17,449

Two storey extension - £87,923

Build a timber frame extension - £25,949

Build a swimming pool - £80,949

Single storey extension - £53,976

Side return extension - £40,924

Install an RSJ - £2,149

Outbuilding - £9,949

Build a Mansard loft conversion - £51,949

Loft conversion - £33,270

Build a kitchen extension - £41,949

Hip to gable loft conversion - £41,949

Granny annexe - £86,949

Garden office - £9,949

Convert a Garage - £15,949

Garage - £18,449

Build a flat roof extension - £21,949

Build a dormer loft conversion - £41,949

Concrete foundations - £6,199

Convert a bungalow loft - £28,949

Convert a basement - £36,924