From £33,450
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £31,275
Need an Extension Builder in County Durham? Northern Roofline Solutions has been helping local clients (20 mile radius) with their extension builde...
From £33,000
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £34,350
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 £34,125
Need to find an Extension Builder near you for all your extension buildering work?
SBC (BUILDERS) LIMITED provides a local, trusted extensi...
From £32,625
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 £31,500
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 £33,750
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 £32,325
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 Loft conversion 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 of a loft conversion in County Durham by posting your job to extension builders in County Durham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Bishop Auckland | £39 | £247 |
| Loft Conversion near Spennymoor | £38 | £248 |
| Loft Conversion near Newton Aycliffe | £39 | £227 |
| Loft Conversion near Durham | £47 | £267 |
| Loft Conversion near Darlington | £60 | £222 |
| Loft Conversion near Consett | £33 | £241 |
| Loft Conversion near Stanley | £34 | £242 |
| Loft Conversion near Chester-le-Street | £35 | £242 |
| Loft Conversion near Peterlee | £35 | £222 |
| Loft Conversion 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