From £38,670
Durham, DH1
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Durham. Please contact us for a free, no obligation quote and...
From £47,760
Durham, DH1
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £34,800
Need an Extension Builder in Durham? K & J Property has been helping local clients (20 mile radius) with their extension buildering jobs for many y...
From £37,500
Relax... you have found a reliable extension builder in Durham. AA Paving is a friendly and reliable company based in Durham who consider no job as...
From £35,610
LJP Roofing are here to help customers who need an Extension Builder in Durham. We offer a competitive rate to complete all your extension builderi...
From £28,050
Durham, DH6
We provide expert advice on building defects and cost effective environmental friendly solutions throughout the North East of England. Our bu...
From £35,610
Experienced extension builder ready to quote for your work. L F BUILDING & JOINERY is the best extension builder in Durham. No obligation free quot...
From £38,220
Croft-Hill Building & Joinery is a trusted extension builder serving customers in Durham and the surrounding area. Contact us to today to get a com...
From £35,340
Trusted and professional extension builder in Durham. Experienced in all extension buildering work and keeping within budget and on quote. DHB Buil...

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 Durham by posting a job with HaMuch and we will send it to extension builders in Durham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Durham | £47 | £267 |
| Convert A Basement near Chester-le-Street | £35 | £242 |
| Convert A Basement near Spennymoor | £38 | £248 |
| Convert A Basement near Washington | £33 | £251 |
| Convert A Basement near Sunderland | £33 | £251 |
| Convert A Basement near Stanley | £34 | £242 |
| Convert A Basement near Seaham | £34 | £229 |
| Convert A Basement near Bishop Auckland | £39 | £247 |
| Convert A Basement near Peterlee | £35 | £222 |
| Convert A Basement near Newton Aycliffe | £39 | £227 |
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 - £17,474

Two storey extension - £87,960

Build a timber frame extension - £25,974

Build a swimming pool - £80,974

Single storey extension - £54,472

Side return extension - £41,203

Install an RSJ - £2,174

Outbuilding - £9,974

Build a Mansard loft conversion - £51,974

Loft conversion - £33,503

Build a kitchen extension - £41,974

Hip to gable loft conversion - £41,974

Granny annexe - £86,974

Garden office - £9,974

Convert a Garage - £15,974

Garage - £18,474

Build a flat roof extension - £21,974

Build a dormer loft conversion - £41,974

Concrete foundations - £6,224

Convert a bungalow loft - £28,974

Convert a basement - £37,203