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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...
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.
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...
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...
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...
From £25,875
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.<...
From £32,100
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
From £34,725
Tetrosyl
Need to find an Extension Builder near you for all your extension buildering work?
Tetrosyl provides a local, trusted extension buildering ...
From £29,925
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...
From £33,900
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...
Cheapest builders for loft conversion in OL12
Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in OL12 by posting your job to extension builders in OL12.
"Dormer conversion for attic" - ROCHDALE, job posted 14/01/24
"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
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| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Rochdale | £30 | £221 |
| Loft Conversion near Heywood | £30 | £221 |
| Loft Conversion near Royton | £30 | £225 |
| Loft Conversion near Middleton | £31 | £227 |
| Loft Conversion near Bury | £30 | £219 |
| Loft Conversion near Chadderton | £31 | £225 |
| Loft Conversion near Oldham | £31 | £229 |
| Loft Conversion near Rawtenstall | £29 | £213 |
| Loft Conversion near Whitefield | £31 | £229 |
| Loft Conversion near Radcliffe | £30 | £220 |
Estimates for common extension builder jobs in OL12;
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 - £17,199
Two storey extension - £87,549
Build a timber frame extension - £25,699
Build a swimming pool - £80,699
Single storey extension - £48,984
Side return extension - £38,116
Install an RSJ - £1,899
Outbuilding - £9,699
Build a Mansard loft conversion - £51,699
Loft conversion - £30,930
Build a kitchen extension - £41,699
Hip to gable loft conversion - £41,699
Granny annexe - £86,699
Garden office - £9,699
Convert a Garage - £15,699
Garage - £18,199
Build a flat roof extension - £21,699
Build a dormer loft conversion - £41,699
Concrete foundations - £5,949
Convert a bungalow loft - £28,699
Convert a basement - £34,116