Local BB12 extension builders & recently posted jobs
M.A Martins
£28/hour
£207/day
Need an Extension Builder in BB12? M.A Martins has been helping local clients (20 mile radius) with their extension buildering jobs for many years....
"30sqm single storey extension" - BB12, job posted 27/04/26
A M BUILDING MAINTAINANCE
£29/hour
£217/day
A M BUILDING MAINTAINANCE is an established extension buildering business in BB12. We come highly recommended and provide competitive quotes for yo...
"Single storey kitchen extension within permitted development 3.5 metres in length max" - BB9, job posted 24/02/26
CROSS CONSTRUCTION LTD
£28/hour
£205/day
Relax... you have found a reliable extension builder in BB12. CROSS CONSTRUCTION LTD is a friendly and reliable company based in BB12 who consider ...
"Kitchen extension" - BB12, job posted 10/02/26
Ray's Property Services
£34/hour
£254/day
Need to find an Extension Builder near you for all your extension buildering work?
Ray's Property Services provides a local, trusted extens...
"Garage conversion" - BB6, job posted 06/09/25
Garage Door Services Lancashire
£28/hour
£211/day
Experienced extension builder ready to quote for your work. Garage Door Services Lancashire is the best extension builder in BB12. No obligation fr...
"Underpinning" - ACCRINGTON, job posted 06/04/25
Renovasion badrom
£28/hour
£207/day
Hello So we do not work and almost any work and it works very well and qualitatively If you are interested we can work in the future
Usaim Builders
£29/hour
£213/day
Need to find an Extension Builder near you for all your extension buildering work?
Usaim Builders provides a local, trusted extension build...
Probuild Construction
£27/hour
£202/day
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Ken Thomas Property Repairs
£26/hour
£197/day
Need to find an Extension Builder near you for all your extension buildering work?
Ken Thomas Property Repairs provides a local, trusted ex...
Pennine Building Services
£34/hour
£244/day
Pennine Building Services are here to help customers who need an Extension Builder in BB12. We offer a competitive rate to complete all your extens...
RJ BUILDERS CONSTRUCTION
£24/hour
£240/day
RJ BUILDERS CONSTRUCTION - Loft Conversions and Plastering specialists
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 BB12 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Burnley | £29 | £219 |
| Extension Builders near Nelson | £27 | £214 |
| Extension Builders near Accrington | £33 | £245 |
| Extension Builders near Rawtenstall | £31 | £230 |
| Extension Builders near Blackburn | £34 | £247 |
| Extension Builders near Darwen | £34 | £253 |
| Extension Builders near Calderdale | £33 | £253 |
| Extension Builders near Rochdale | £30 | £221 |
| Extension Builders near Bury | £30 | £220 |
| Extension Builders near Heywood | £30 | £222 |
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 - £25,744
Garden office - £9,744
Granny annexe - £86,744
Build a flat roof extension - £21,744
Convert a Garage - £15,744
Hip to gable loft conversion - £41,744
Convert a bungalow loft - £28,744
Build a dormer loft conversion - £41,744
Build a swimming pool - £80,744
Build a Mansard loft conversion - £51,744
Concrete foundations - £5,994
Underpin a building - £17,244
Two storey extension - £87,616
Convert a basement - £34,620
Side return extension - £38,620
Loft conversion - £31,350
Garage - £18,244
Single storey extension - £49,880
Outbuilding - £9,744
Install an RSJ - £1,944
Build a kitchen extension - £41,744
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