
A flat roof extension ranges from the cheapest of £0 ( based in 0) to the dearest of £0 ( based in 0), 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 DN7 by posting a job with HaMuch. We'll send it to extension builders in DN7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Doncaster | £29 | £238 |
| Build A Flat Roof Extension near Goole | £26 | £217 |
| Build A Flat Roof Extension near Pontefract | £30 | £228 |
| Build A Flat Roof Extension near Selby | £30 | £240 |
| Build A Flat Roof Extension near Scunthorpe | £26 | £207 |
| Build A Flat Roof Extension near Wickersley | £33 | £257 |
| Build A Flat Roof Extension near Gainsborough | £30 | £234 |
| Build A Flat Roof Extension near Bassetlaw | £31 | £243 |
| Build A Flat Roof Extension near Castleford | £30 | £225 |
| Build A Flat Roof Extension near Rotherham | £33 | £257 |
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 - £15,500

Two storey extension - £85,000

Build a timber frame extension - £24,000

Build a swimming pool - £79,000

Single storey extension - £15,000

Side return extension - £19,000

Install an RSJ - £200

Outbuilding - £8,000

Build a Mansard loft conversion - £50,000

Loft conversion - £15,000

Build a kitchen extension - £40,000

Hip to gable loft conversion - £40,000

Granny annexe - £85,000

Garden office - £8,000

Convert a Garage - £14,000

Garage - £16,500

Build a flat roof extension - £20,000

Build a dormer loft conversion - £40,000

Concrete foundations - £4,250

Convert a bungalow loft - £27,000

Convert a basement - £15,000