From £37,140
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £34,530
Need an Extension Builder in County Durham? Northern Roofline Solutions has been helping local clients (20 mile radius) with their extension builde...
From £36,600
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £38,220
Croft-Hill Building & Joinery is a trusted extension builder serving customers in County Durham and the surrounding area. Contact us to today to ge...
From £37,950
Need to find an Extension Builder near you for all your extension buildering work?
SBC (BUILDERS) LIMITED provides a local, trusted extensi...
From £36,150
J.collinson is an established and experienced local extension builder in County Durham. Please contact us for a free, no obligation quote and compe...
From £34,800
Need an Extension Builder in County Durham? K & J Property has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £37,500
Relax... you have found a reliable extension builder in County Durham. AA Paving is a friendly and reliable company based in County Durham who cons...
From £35,790
Need to find an Extension Builder near you for all your extension buildering work?
ANWEN CONSTRUCTION provides a local, trusted extension b...

Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in County Durham by posting a job with HaMuch and we will send it to extension builders in County Durham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Bishop Auckland | £39 | £247 |
| Convert A Basement near Spennymoor | £38 | £248 |
| Convert A Basement near Newton Aycliffe | £39 | £227 |
| Convert A Basement near Durham | £47 | £267 |
| Convert A Basement near Darlington | £60 | £222 |
| Convert A Basement near Consett | £33 | £241 |
| Convert A Basement near Stanley | £34 | £242 |
| Convert A Basement near Chester-le-Street | £35 | £242 |
| Convert A Basement near Peterlee | £35 | £222 |
| Convert A Basement near Washington | £33 | £251 |
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 - £17,448

Two storey extension - £87,922

Build a timber frame extension - £25,948

Build a swimming pool - £80,948

Single storey extension - £53,960

Side return extension - £40,915

Install an RSJ - £2,148

Outbuilding - £9,948

Build a Mansard loft conversion - £51,948

Loft conversion - £33,263

Build a kitchen extension - £41,948

Hip to gable loft conversion - £41,948

Granny annexe - £86,948

Garden office - £9,948

Convert a Garage - £15,948

Garage - £18,448

Build a flat roof extension - £21,948

Build a dormer loft conversion - £41,948

Concrete foundations - £6,198

Convert a bungalow loft - £28,948

Convert a basement - £36,915