Trusted and professional extension builder in BL6. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...
Peter Gallagher
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in BL6. No obligation free quotes...
Liverpool Builder is an established extension buildering business in BL6. We come highly recommended and provide competitive quotes for your work.<...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Relax... you have found a reliable extension builder in BL6. KM Building Services is a friendly and reliable company based in BL6 who consider no j...
Paul Foran
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Sasho Mitev
Hello So we do not work and almost any work and it works very well and qualitatively If you are interested we can work in the future
Relax... you have found a reliable extension builder in BL6. David Anderson Builders is a friendly and reliable company based in BL6 who consider n...
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...
Jonathan
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...

A flat roof extension ranges from the cheapest of £20,960 (Aquatec Builder based in OL10) to the dearest of £21,960 (ESBP Specialists Ltd based in M26), 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 BL6 by posting a job with HaMuch. We'll send it to extension builders in BL6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Horwich | £30 | £219 |
| Build A Flat Roof Extension near Westhoughton | £31 | £222 |
| Build A Flat Roof Extension near Hindley | £30 | £219 |
| Build A Flat Roof Extension near Bolton | £31 | £219 |
| Build A Flat Roof Extension near Atherton | £31 | £223 |
| Build A Flat Roof Extension near Wigan | £30 | £220 |
| Build A Flat Roof Extension near Chorley | £30 | £221 |
| Build A Flat Roof Extension near Little Hulton | £30 | £220 |
| Build A Flat Roof Extension near Farnworth | £30 | £219 |
| Build A Flat Roof Extension near Leigh | £31 | £224 |
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 - £17,158

Two storey extension - £87,486

Build a timber frame extension - £25,658

Build a swimming pool - £80,658

Single storey extension - £48,152

Side return extension - £37,648

Install an RSJ - £1,858

Outbuilding - £9,658

Build a Mansard loft conversion - £51,658

Loft conversion - £30,540

Build a kitchen extension - £41,658

Hip to gable loft conversion - £41,658

Granny annexe - £86,658

Garden office - £9,658

Convert a Garage - £15,658

Garage - £18,158

Build a flat roof extension - £21,658

Build a dormer loft conversion - £41,658

Concrete foundations - £5,908

Convert a bungalow loft - £28,658

Convert a basement - £33,648