Cheapest builders to convert your basement in Poole
Range from the cheapest Basement conversion £26700 (GMD Roofing based in BH15) to the dearest Basement conversion £35700 (Ground Up Building Services Ltd based in BH15).
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 Poole by posting a job with HaMuch and we will send it to extension builders in Poole.
Estimates for common extension builder jobs in Poole;
| Job | Estimate |
| Underpinning a house | £17208 |
| Build a two storey extension | £87562 |
| Build a timber frame extension | £25708 |
| Install a swimming pool | £80708 |
| Cost to build a single storey extension | £44163 |
| Cost to build a side return extension | £34217 |
| Install an RSJ | £1908 |
| Build an outbuilding | £9708 |
| Build a mansard loft conversion | £51708 |
| Cost of a loft conversion | £31014 |
| Build a kitchen extension | £41708 |
| Build a hip to gable loft conversion | £41708 |
| Build a granny annexe | £86708 |
| Build a garden office | £9708 |
| Convert a garage | £15708 |
| Build a flat roof extension | £21708 |
| Build a dormer loft conversion | £41708 |
| Lay a concrete foundation | £5958 |
| Convert a bungalow loft | £28708 |
| Basement conversion cost | £34217 |