Local Durham extension builders & latest jobs
DHB Builders
£37/hour
£226/day
Trusted and professional extension builder in Durham. Experienced in all extension buildering work and keeping within budget and on quote. DHB Buil...
"Two storey extension" - DH1, job posted 27/01/26
LJP Roofing
£37/hour
£229/day
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...
"Two storey extension" - DURHAM, job posted 27/05/25
Radici Construction North East Ltd
£78/hour
£364/day
Durham, DH1
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
"Single storey extension" - DURHAM, job posted 04/05/25
P J N Builders
£39/hour
£237/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Hi I was hoping to get a quote for the renovation of an entire house. It’s about 60 years old. I would need: 1. potential plastering of walls, r 2. removal of an existing kitchen & fitting of new 3. Removal of 1 bathroom & fitting of 2 4. garage conversion 5. flooring & carpet, ..." - DH1, job posted 05/09/24
"Single storey extension" - DURHAM, job posted 30/03/24
AA Paving
£40/hour
£250/day
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...
L F BUILDING & JOINERY
£32/hour
£229/day
Experienced extension builder ready to quote for your work. L F BUILDING & JOINERY is the best extension builder in Durham. No obligation free quot...
Spacesaver Loft Storage
£35/hour
£239/day
Need an Extension Builder in Durham? Spacesaver Loft Storage has been helping local clients (20 mile radius) with their extension buildering jobs f...
K & J Property
£35/hour
£220/day
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...
RAINTON CONSTRUCTION LTD
£42/hour
£263/day
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...
Croft-Hill Building & Joinery
£43/hour
£258/day
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...
J T Lofts
£38/hour
£259/day
Homeowners look no further if you want a qualified extension builder to work in your home. J T Lofts are tidy and neat, providing a quality extensi...
The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.
Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.
To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;
- Get proper contact details and check them yourself
- Check if the company is verified on the Companies House website
- Get phone details, ideally a land line or 0800 number and check it
- Get a physical office address
Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;
- Agree expected quality of workmanship and materials in advance
- When will work start and when will project be finished, what happens if project over runs ?
- How long is the guarantee on work and materials eg 12 months
- Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
- Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job
Compare Durham extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Durham | £47 | £267 |
| Extension Builders near Chester-le-Street | £35 | £242 |
| Extension Builders near Spennymoor | £38 | £248 |
| Extension Builders near Washington | £33 | £254 |
| Extension Builders near Sunderland | £33 | £251 |
| Extension Builders near Stanley | £34 | £242 |
| Extension Builders near Seaham | £35 | £235 |
| Extension Builders near Bishop Auckland | £39 | £247 |
| Extension Builders near Peterlee | £36 | £230 |
| Extension Builders near Newton Aycliffe | £39 | £227 |
Job estimates from extension builders near you
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.
Build a timber frame extension - £26,040
Garden office - £10,040
Granny annexe - £87,040
Build a flat roof extension - £22,040
Convert a Garage - £16,040
Hip to gable loft conversion - £42,040
Convert a bungalow loft - £29,040
Build a dormer loft conversion - £42,040
Build a swimming pool - £81,040
Build a Mansard loft conversion - £52,040
Concrete foundations - £6,290
Underpin a building - £17,540
Two storey extension - £88,060
Convert a basement - £37,950
Side return extension - £41,950
Loft conversion - £34,125
Garage - £18,540
Single storey extension - £55,800
Outbuilding - £10,040
Install an RSJ - £2,240
Build a kitchen extension - £42,040
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