From £22,000
Long Hill Design Studios is an established and experienced local extension builder in SK23. Please contact us for a free, no obligation quote and c...

A flat roof extension ranges from the cheapest of £22,000 (Long Hill Design Studios based in SK17) to the dearest of £22,000 (Long Hill Design Studios based in SK17), 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 SK23 by posting a job with HaMuch. We'll send it to extension builders in SK23.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Buxton | £32 | £250 |
| Build A Flat Roof Extension near Hazel Grove | £32 | £233 |
| Build A Flat Roof Extension near Macclesfield | £32 | £239 |
| Build A Flat Roof Extension near Stockport | £35 | £234 |
| Build A Flat Roof Extension near Hyde | £36 | £227 |
| Build A Flat Roof Extension near Cheadle Hulme | £31 | £232 |
| Build A Flat Roof Extension near Denton | £35 | £234 |
| Build A Flat Roof Extension near Dukinfield | £35 | £232 |
| Build A Flat Roof Extension near Reddish | £34 | £236 |
| Build A Flat Roof Extension near Wilmslow | £31 | £230 |
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 - £17,500

Two storey extension - £88,000

Build a timber frame extension - £26,000

Build a swimming pool - £81,000

Single storey extension - £55,000

Side return extension - £41,500

Install an RSJ - £2,200

Outbuilding - £10,000

Build a Mansard loft conversion - £52,000

Loft conversion - £33,750

Build a kitchen extension - £42,000

Hip to gable loft conversion - £42,000

Granny annexe - £87,000

Garden office - £10,000

Convert a Garage - £16,000

Garage - £18,500

Build a flat roof extension - £22,000

Build a dormer loft conversion - £42,000

Concrete foundations - £6,250

Convert a bungalow loft - £29,000

Convert a basement - £37,500