From £5,914
Experienced extension builder ready to quote for your work. M & J Building Contractors is the best extension builder in Cornwall. No obligation fre...
From £6,018
Cornwall, EX22
We are experienced, creative, skilled craftspeople and builders. We design, construct and install interior projects for any space in your home. Fro...

Concrete foundations range from the £5,914 (M & J Building Contractors based in EX23) to £6,018 (M and R based in EX22) in Cornwall.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in Cornwall by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Concrete Foundations near Bideford | £22 | £174 |
| Concrete Foundations near Barnstaple | £25 | £196 |
| Concrete Foundations near Newquay | £32 | £230 |
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 - £17,216

Two storey extension - £87,574

Build a timber frame extension - £25,716

Build a swimming pool - £80,716

Single storey extension - £49,320

Side return extension - £38,305

Install an RSJ - £1,916

Outbuilding - £9,716

Build a Mansard loft conversion - £51,716

Loft conversion - £31,088

Build a kitchen extension - £41,716

Hip to gable loft conversion - £41,716

Granny annexe - £86,716

Garden office - £9,716

Convert a Garage - £15,716

Garage - £18,216

Build a flat roof extension - £21,716

Build a dormer loft conversion - £41,716

Concrete foundations - £5,966

Convert a bungalow loft - £28,716

Convert a basement - £34,305