Range from the cheapest £20 per hour and £160 per day (MORROW CONSTRUCTION based in PL26) to the dearest £34 per hour and £214 per day (Refresh Renovations Cornwall based in PL25).
Comparing hourly and daily rates of Extension Builder's 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 - Click 'Get quotes' and describe your job and we will send it to your local extension builders for FREE.
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See table for all Extension Builder rates in Mitc
Established in 2005 and with over 20 years experience we can deliver on quality and service. We can cover every aspect of your pr...
| Job details | Estimate |
| Underpinning a house | £1406 |
| Build a two storey extension | £4686 |
| Build a timber frame extension | £4686 |
| Install a swimming pool | £2811 |
| Cost to build a single storey extension | £37486 |
| Cost to build a side return extension | £43109 |
| Install an RSJ | £820 |
| Build an outbuilding | £1874 |
| Build a mansard loft conversion | £9372 |
| Cost of a loft conversion | £26241 |
| Build a kitchen extension | £9372 |
| Build a hip to gable loft conversion | £7029 |
| Build a granny annexe | £4686 |
| Build a garden office | £1874 |
| Convert a garage | £937 |
| Build a new garage | £1874 |
| Build a flat roof extension | £1593 |
| Build a dormer loft conversion | £1874 |
| Lay a concrete foundation | £1874 |
| Convert a bungalow loft | £2811 |
| Basement conversion cost | £26241 |