Cheapest builders to convert your basement in Ottery St Mary
Range from the cheapest Basement conversion £26700 (RIDGE ROOF & BLDNG MAINT LTD based in EX14) to the dearest Basement conversion £33360 (Build One based in EX8).
Comparing extension builders estimates for a Basement 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 to convert a basement in Ottery St Mary by posting a job with HaMuch and we will send it to extension builders in Ottery St Mary.
Estimates for common extension builder jobs in Ottery St Mary;
| Job | Estimate |
| Underpinning a house | £17001 |
| Build a two storey extension | £87251 |
| Build a timber frame extension | £25501 |
| Install a swimming pool | £80501 |
| Cost to build a single storey extension | £40016 |
| Cost to build a side return extension | £31884 |
| Install an RSJ | £1701 |
| Build an outbuilding | £9501 |
| Build a mansard loft conversion | £51501 |
| Cost of a loft conversion | £29070 |
| Build a kitchen extension | £41501 |
| Build a hip to gable loft conversion | £41501 |
| Build a granny annexe | £86501 |
| Build a garden office | £9501 |
| Convert a garage | £15501 |
| Build a new garage | £18001 |
| Build a flat roof extension | £21501 |
| Build a dormer loft conversion | £41501 |
| Lay a concrete foundation | £5751 |
| Convert a bungalow loft | £28501 |
| Basement conversion cost | £31884 |