Albert Radici
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in DH1. Please contact us for a free, no obligation quote and co...
From £21,760
Need an Extension Builder in DH1? K & J Property has been helping local clients (20 mile radius) with their extension buildering jobs for many year...

A flat roof extension ranges from the cheapest of £21,760 (K & J Property based in DH7) to the dearest of £22,912 (Radici Construction North East Ltd based in DH1), 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 DH1 by posting a job with HaMuch. We'll send it to extension builders in DH1.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Durham | £47 | £267 |
| Build A Flat Roof Extension near Chester-le-Street | £35 | £242 |
| Build A Flat Roof Extension near Spennymoor | £37 | £249 |
| Build A Flat Roof Extension near Washington | £33 | £254 |
| Build A Flat Roof Extension near Sunderland | £33 | £251 |
| Build A Flat Roof Extension near Stanley | £34 | £242 |
| Build A Flat Roof Extension near Seaham | £35 | £235 |
| Build A Flat Roof Extension near Bishop Auckland | £38 | £248 |
| Build A Flat Roof Extension near Peterlee | £36 | £230 |
| Build A Flat Roof Extension near Newton Aycliffe | £38 | £225 |
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 - £17,759

Two storey extension - £88,388

Build a timber frame extension - £26,259

Build a swimming pool - £81,259

Single storey extension - £60,173

Side return extension - £44,410

Install an RSJ - £2,459

Outbuilding - £10,259

Build a Mansard loft conversion - £52,259

Loft conversion - £36,175

Build a kitchen extension - £42,259

Hip to gable loft conversion - £42,259

Granny annexe - £87,259

Garden office - £10,259

Convert a Garage - £16,259

Garage - £18,759

Build a flat roof extension - £22,259

Build a dormer loft conversion - £42,259

Concrete foundations - £6,509

Convert a bungalow loft - £29,259

Convert a basement - £40,410