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 £51,760
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 £52,064
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 £51,968
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £52,040
Need to find an Extension Builder near you for all your extension buildering work?
SBC (BUILDERS) LIMITED provides a local, trusted extensi...
From £51,880
J.collinson is an established and experienced local extension builder in County Durham. Please contact us for a free, no obligation quote and compe...

Mansard loft conversions range from the cheapest installation of £51,760 (K & J Property based in DH7) to the dearest of around £52,064 (Croft-Hill Building & Joinery based in DL15).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in County Durham by posting a job with HaMuch and we'll send it to extension builders in County Durham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Bishop Auckland | £39 | £247 |
| Build A Mansard Loft Conversion near Spennymoor | £38 | £248 |
| Build A Mansard Loft Conversion near Newton Aycliffe | £39 | £227 |
| Build A Mansard Loft Conversion near Durham | £47 | £267 |
| Build A Mansard Loft Conversion near Darlington | £60 | £222 |
| Build A Mansard Loft Conversion near Consett | £33 | £241 |
| Build A Mansard Loft Conversion near Stanley | £34 | £242 |
| Build A Mansard Loft Conversion near Chester-le-Street | £35 | £242 |
| Build A Mansard Loft Conversion near Peterlee | £36 | £230 |
| Build A Mansard Loft Conversion near Washington | £33 | £254 |
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 - £17,452

Two storey extension - £87,928

Build a timber frame extension - £25,952

Build a swimming pool - £80,952

Single storey extension - £54,040

Side return extension - £40,960

Install an RSJ - £2,152

Outbuilding - £9,952

Build a Mansard loft conversion - £51,952

Loft conversion - £33,300

Build a kitchen extension - £41,952

Hip to gable loft conversion - £41,952

Granny annexe - £86,952

Garden office - £9,952

Convert a Garage - £15,952

Garage - £18,452

Build a flat roof extension - £21,952

Build a dormer loft conversion - £41,952

Concrete foundations - £6,202

Convert a bungalow loft - £28,952

Convert a basement - £36,960