From £87,496
Experienced extension builder ready to quote for your work. M & J Building Contractors is the best extension builder in Cornwall. No obligation fre...
From £87,652
Cornwall, EX22
We are experienced, creative, skilled craftspeople and builders. We design, construct and install interior projects for any space in your home. Fro...

Costs range from £87,496 (M & J Building Contractors based in EX23) to £87,652 (M and R based in EX22), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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"Two storey extension" - CORNWALL, job posted 08/06/24
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Bideford | £22 | £174 |
| Two Storey Extension near Barnstaple | £25 | £196 |
| Two Storey Extension 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