From £21,848
Need to find an Extension Builder near you for all your extension buildering work?
ANWEN CONSTRUCTION provides a local, trusted extension b...

A flat roof extension ranges from the cheapest of £21,848 (ANWEN CONSTRUCTION based in DL5) to the dearest of £21,848 (ANWEN CONSTRUCTION based in DL5), 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 DL5 by posting a job with HaMuch. We'll send it to extension builders in DL5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Newton Aycliffe | £38 | £225 |
| Build A Flat Roof Extension near Bishop Auckland | £38 | £248 |
| Build A Flat Roof Extension near Spennymoor | £37 | £249 |
| Build A Flat Roof Extension near Darlington | £60 | £222 |
| Build A Flat Roof Extension near Stockton-on-Tees | £41 | £228 |
| Build A Flat Roof Extension near Durham | £47 | £267 |
| Build A Flat Roof Extension near Billingham | £44 | £242 |
| Build A Flat Roof Extension near Thornaby-on-Tees | £42 | £231 |
| Build A Flat Roof Extension near Ingleby Barwick | £41 | £228 |
| Build A Flat Roof Extension near Middlesbrough | £43 | £236 |
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 - £17,348

Two storey extension - £87,772

Build a timber frame extension - £25,848

Build a swimming pool - £80,848

Single storey extension - £51,960

Side return extension - £39,790

Install an RSJ - £2,048

Outbuilding - £9,848

Build a Mansard loft conversion - £51,848

Loft conversion - £32,325

Build a kitchen extension - £41,848

Hip to gable loft conversion - £41,848

Granny annexe - £86,848

Garden office - £9,848

Convert a Garage - £15,848

Garage - £18,348

Build a flat roof extension - £21,848

Build a dormer loft conversion - £41,848

Concrete foundations - £6,098

Convert a bungalow loft - £28,848

Convert a basement - £35,790