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Aquatec Builder
Paul Foran
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Build a dormer loft conversion" - OL11, job posted 27/09/26
H.B.S
H.B.S is an established extension buildering business in OL12. We come highly recommended and provide competitive quotes for your work.
"Two storey extension" - OL11, job posted 03/07/26
M R T BUILDING SERVICES LTD
Terry Howlett
We are a local building company who specialises in keeping our customers happy we are reliable friendly. We carry out all types of building wo...
"Single storey extension" - OL11, job posted 29/05/26
G Wardley Building & Repairs
Need an Extension Builder in OL12? G Wardley Building & Repairs has been helping local clients (20 mile radius) with their extension buildering job...
"Loft conversion" - ROCHDALE, job posted 23/04/26
PLP CONSTRUCTION LTD
PLP CONSTRUCTION LTD is an established and experienced local extension builder in OL12. Please contact us for a free, no obligation quote and compe...
"Two storey extension" - ROCHDALE, job posted 08/03/26
£18/hr
£145/day
MKS Builders Ltd
Khuram Shahzad
MKS Builders Ltd is an established extension buildering business in OL12. We come highly recommended and provide competitive quotes for your work.<...
"A 2bedroom loft conversion one shower and toilet have plans and Architect approve council permitted development in place need quotes For the complete job" - ROCHDALE, job posted 23/07/25
£23/hr
£228/day
JNC Developments
Kristian Hubbard
Jnc has been going for 15 years now we have over 10 lads at any time working for us . We Speselied in new building and Exstenshons
"Loft conversion 2 bedroom 1shower and toilet Have Architect approved plans and council permitted development approved" - ROCHDALE, job posted 23/07/25
£37/hr
£263/day
Tetrosyl
Need to find an Extension Builder near you for all your extension buildering work?
Tetrosyl provides a local, trusted extension buildering ...
"Loft conversion 2 bedroom 1shower and toilet Have Architect approved plans and council permitted development approved" - ROCHDALE, job posted 23/07/25
£26/hr
£199/day
Roscoe Building Company Limited
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
"Garage conversion" - ROCHDALE, job posted 18/06/25
£33/hr
£252/day
Tetlow Construction Ltd
Experienced extension builder ready to quote for your work. Tetlow Construction Ltd is the best extension builder in OL12. No obligation free quote...
"Side extension connecting to existing rear extension." - ROCHDALE, job posted 14/06/25
Compare OL12 extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Rochdale | £30 | £221 |
| Extension Builders near Heywood | £30 | £221 |
| Extension Builders near Royton | £30 | £225 |
| Extension Builders near Middleton | £31 | £227 |
| Extension Builders near Bury | £30 | £219 |
| Extension Builders near Chadderton | £31 | £225 |
| Extension Builders near Oldham | £31 | £229 |
| Extension Builders near Rawtenstall | £29 | £213 |
| Extension Builders near Whitefield | £31 | £229 |
| Extension Builders near Radcliffe | £30 | £220 |
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 - £25,696

Garden office - £9,696

Granny annexe - £86,696

Build a flat roof extension - £21,696

Convert a Garage - £15,696

Hip to gable loft conversion - £41,696

Convert a bungalow loft - £28,696

Build a dormer loft conversion - £41,696

Build a swimming pool - £80,696

Build a Mansard loft conversion - £51,696

Concrete foundations - £5,946

Underpin a building - £17,196

Two storey extension - £87,544

Convert a basement - £34,080

Side return extension - £38,080

Loft conversion - £30,900

Garage - £18,196

Single storey extension - £48,920

Outbuilding - £9,696

Install an RSJ - £1,896

Build a kitchen extension - £41,696
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