From £21,760
CJ Construction are here to help customers who need an Extension Builder in WA9. We offer a competitive rate to complete all your extension builder...
From £21,608
Relax... you have found a reliable extension builder in WA9. R A C Gas is a friendly and reliable company based in WA9 who consider no job as too b...
From £21,552
Liverpool Builder is an established extension buildering business in WA9. We come highly recommended and provide competitive quotes for your work.<...
From £21,672
J.M.C Building Services is a trusted extension builder serving customers in WA9 and the surrounding area. Contact us to today to get a competitive ...
From £21,704
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,768
Relax... you have found a reliable extension builder in WA9. KM Building Services is a friendly and reliable company based in WA9 who consider no j...
From £21,472
Trusted and professional extension builder in WA9. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...
From £21,976
Nathan Thomas Plumbing is an established extension buildering business in WA9. We come highly recommended and provide competitive quotes for your w...
From £21,776
Relax... you have found a reliable extension builder in WA9. David Anderson Builders is a friendly and reliable company based in WA9 who consider n...
From £21,792
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...

A flat roof extension ranges from the cheapest of £21,472 (Jones Landscaping based in L30) to the dearest of £21,976 (Nathan Thomas Plumbing based in L19), 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 WA9 by posting a job with HaMuch. We'll send it to extension builders in WA9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near St Helens | £31 | £224 |
| Build A Flat Roof Extension near Newton-le-Willows | £31 | £221 |
| Build A Flat Roof Extension near Prescot | £31 | £223 |
| Build A Flat Roof Extension near Knowsley | £31 | £222 |
| Build A Flat Roof Extension near Widnes | £31 | £220 |
| Build A Flat Roof Extension near Huyton with Roby | £31 | £225 |
| Build A Flat Roof Extension near Ashton-in-Makerfield | £30 | £220 |
| Build A Flat Roof Extension near Halton | £31 | £220 |
| Build A Flat Roof Extension near Golborne | £30 | £222 |
| Build A Flat Roof Extension near Warrington | £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 - £17,208

Two storey extension - £87,562

Build a timber frame extension - £25,708

Build a swimming pool - £80,708

Single storey extension - £49,160

Side return extension - £38,215

Install an RSJ - £1,908

Outbuilding - £9,708

Build a Mansard loft conversion - £51,708

Loft conversion - £31,013

Build a kitchen extension - £41,708

Hip to gable loft conversion - £41,708

Granny annexe - £86,708

Garden office - £9,708

Convert a Garage - £15,708

Garage - £18,208

Build a flat roof extension - £21,708

Build a dormer loft conversion - £41,708

Concrete foundations - £5,958

Convert a bungalow loft - £28,708

Convert a basement - £34,215