Cheapest builders to convert your basement in BN42
Range from the cheapest Basement conversion £33810 (Black Olive Construction Ltd based in BN1) to the dearest Basement conversion £37500 (Elite LT Ltd based in BN3).
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 BN42 by posting a job with HaMuch and we will send it to extension builders in BN42.
Estimates for common extension builder jobs in BN42;
| Job | Estimate |
| Underpinning a house | £17252 |
| Build a two storey extension | £87628 |
| Build a timber frame extension | £25752 |
| Install a swimming pool | £80752 |
| Cost to build a single storey extension | £45040 |
| Cost to build a side return extension | £34710 |
| Install an RSJ | £1952 |
| Build an outbuilding | £9752 |
| Build a mansard loft conversion | £51752 |
| Cost of a loft conversion | £31425 |
| Build a kitchen extension | £41752 |
| Build a hip to gable loft conversion | £41752 |
| Build a granny annexe | £86752 |
| Build a garden office | £9752 |
| Convert a garage | £15752 |
| Build a new garage | £18252 |
| Build a flat roof extension | £21752 |
| Build a dormer loft conversion | £41752 |
| Lay a concrete foundation | £6002 |
| Convert a bungalow loft | £28752 |
| Basement conversion cost | £34710 |