From £21,736
Trusted and professional extension builder in CH41. Experienced in all extension buildering work and keeping within budget and on quote. MA Roofing...
From £21,904
Glassrooms is an established extension buildering business in CH41. We come highly recommended and provide competitive quotes for your work.
From £21,744
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,736
Need an Extension Builder in CH41? PK.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
From £21,896
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,664
Accro Building Services is an established extension buildering business in CH41. We come highly recommended and provide competitive quotes for your...
From £21,848
Need to find an Extension Builder near you for all your extension buildering work?
S.L.P Property Maintenance provides a local, trusted ext...
From £21,912
Need to find an Extension Builder near you for all your extension buildering work?
PropertyPro provides a local, trusted extension builderi...
From £21,968
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,696
Robuild - Waterwise is an established extension buildering business in CH41. We come highly recommended and provide competitive quotes for your wor...

A flat roof extension ranges from the cheapest of £21,664 (Accro Building Services based in CH44) to the dearest of £21,968 (Dbd based in L3), 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 CH41 by posting a job with HaMuch. We'll send it to extension builders in CH41.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Birkenhead | £31 | £219 |
| Build A Flat Roof Extension near Wallasey | £33 | £224 |
| Build A Flat Roof Extension near Liverpool | £31 | £222 |
| Build A Flat Roof Extension near Wirral | £31 | £219 |
| Build A Flat Roof Extension near Bebington | £31 | £222 |
| Build A Flat Roof Extension near Bootle | £32 | £223 |
| Build A Flat Roof Extension near Heswall | £30 | £213 |
| Build A Flat Roof Extension near Crosby | £34 | £223 |
| Build A Flat Roof Extension near Sefton | £34 | £221 |
| Build A Flat Roof Extension near Kirkby | £31 | £222 |
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 - £17,310

Two storey extension - £87,716

Build a timber frame extension - £25,810

Build a swimming pool - £80,810

Single storey extension - £51,208

Side return extension - £39,367

Install an RSJ - £2,010

Outbuilding - £9,810

Build a Mansard loft conversion - £51,810

Loft conversion - £31,973

Build a kitchen extension - £41,810

Hip to gable loft conversion - £41,810

Granny annexe - £86,810

Garden office - £9,810

Convert a Garage - £15,810

Garage - £18,310

Build a flat roof extension - £21,810

Build a dormer loft conversion - £41,810

Concrete foundations - £6,060

Convert a bungalow loft - £28,810

Convert a basement - £35,367