From £36,330
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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...
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 £35,520
Experienced extension builder ready to quote for your work. AW Building Projects North East Ltd is the best extension builder in DL17. No obligatio...
From £34,800
Need an Extension Builder in DL17? K & J Property has been helping local clients (20 mile radius) with their extension buildering jobs for many yea...
From £34,530
Need an Extension Builder in DL17? Northern Roofline Solutions has been helping local clients (20 mile radius) with their extension buildering jobs...
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 £38,220
Croft-Hill Building & Joinery is a trusted extension builder serving customers in DL17 and the surrounding area. Contact us to today to get a compe...
From £38,670
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in DL17. Please contact us for a free, no obligation quote and c...

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 DL17 by posting a job with HaMuch and we will send it to extension builders in DL17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Convert A Basement near Spennymoor | £38 | £248 |
| Convert A Basement near Newton Aycliffe | £39 | £227 |
| Convert A Basement near Bishop Auckland | £39 | £247 |
| Convert A Basement near Durham | £47 | £267 |
| Convert A Basement near Peterlee | £35 | £222 |
| Convert A Basement near Darlington | £60 | £222 |
| Convert A Basement near Stockton-on-Tees | £40 | £226 |
| Convert A Basement near Billingham | £43 | £240 |
| Convert A Basement near Chester-le-Street | £35 | £242 |
| Convert A Basement near Seaham | £34 | £229 |
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 - £17,438

Two storey extension - £87,908

Build a timber frame extension - £25,938

Build a swimming pool - £80,938

Single storey extension - £53,768

Side return extension - £40,807

Install an RSJ - £2,138

Outbuilding - £9,938

Build a Mansard loft conversion - £51,938

Loft conversion - £33,173

Build a kitchen extension - £41,938

Hip to gable loft conversion - £41,938

Granny annexe - £86,938

Garden office - £9,938

Convert a Garage - £15,938

Garage - £18,438

Build a flat roof extension - £21,938

Build a dormer loft conversion - £41,938

Concrete foundations - £6,188

Convert a bungalow loft - £28,938

Convert a basement - £36,807