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D Parker Design & Build
Need to find an Extension Builder near you for all your extension buildering work?
D Parker Design & Build provides a local, trusted extens...
"Loft conversion" - BB1, job posted 26/05/26
WM Brickwork & Pointing
WM Brickwork & Pointing are here to help customers who need an Extension Builder in BB5. We offer a competitive rate to complete all your extension...
"30sqm single storey extension" - BB12, job posted 27/04/26
Darren Gaynor
Darren Gaynor is a trusted extension builder serving customers in BB5 and the surrounding area. Contact us to today to get a competitive quote for ...
"Kitchen extension" - BB12, job posted 10/02/26
Garry Ryan Property Repairs
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Garage conversion" - BB6, job posted 06/09/25
SMH Joinery & Building
Experienced extension builder ready to quote for your work. SMH Joinery & Building is the best extension builder in BB5. No obligation free quotes ...
"Loft conversion" - BLACKBURN, job posted 24/07/25
J. Grimshaw
Need to find an Extension Builder near you for all your extension buildering work?
J. Grimshaw provides a local, trusted extension builderi...
"Loft conversion need a quote" - BLACKBURN, job posted 17/05/25
Garage Conversions by Joe Hanlon
Garage Conversions by Joe Hanlon is a trusted extension builder serving customers in BB5 and the surrounding area. Contact us to today to get a com...
"Underpinning" - ACCRINGTON, job posted 06/04/25
Compare BB5 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Accrington | £33 | £244 |
| Extension Builders near Blackburn | £33 | £247 |
| Extension Builders near Rawtenstall | £29 | £213 |
| Extension Builders near Burnley | £29 | £219 |
| Extension Builders near Darwen | £34 | £255 |
| Extension Builders near Nelson | £27 | £214 |
| Extension Builders near Chorley | £30 | £221 |
| Extension Builders near Bury | £30 | £219 |
| Extension Builders near Bamber Bridge | £30 | £216 |
| Extension Builders near Bolton | £31 | £219 |
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 - £25,784
Garden office - £9,784
Granny annexe - £86,784
Build a flat roof extension - £21,784
Convert a Garage - £15,784
Hip to gable loft conversion - £41,784
Convert a bungalow loft - £28,784
Build a dormer loft conversion - £41,784
Build a swimming pool - £80,784
Build a Mansard loft conversion - £51,784
Concrete foundations - £6,034
Underpin a building - £17,284
Two storey extension - £87,676
Convert a basement - £35,070
Side return extension - £39,070
Loft conversion - £31,725
Garage - £18,284
Single storey extension - £50,680
Outbuilding - £9,784
Install an RSJ - £1,984
Build a kitchen extension - £41,784
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