Range from the cheapest Basement conversion £35700 (Patrick + Rosie based in TW1) to the dearest Basement conversion £36960 (Planning Design Building based in TW2).
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 Twickenham by posting a job with HaMuch and we will send it to extension builders in Twickenham.
Job | Estimate |
Underpinning a house | £17402 |
Build a two storey extension | £87854 |
Build a timber frame extension | £25902 |
Install a swimming pool | £80902 |
Cost to build a single storey extension | £48048 |
Cost to build a side return extension | £36402 |
Install an RSJ | £2102 |
Build an outbuilding | £9902 |
Build a mansard loft conversion | £51902 |
Cost of a loft conversion | £32835 |
Build a kitchen extension | £41902 |
Build a hip to gable loft conversion | £41902 |
Build a granny annexe | £86902 |
Build a garden office | £9902 |
Convert a garage | £15902 |
Build a new garage | £18402 |
Build a flat roof extension | £21902 |
Build a dormer loft conversion | £41902 |
Lay a concrete foundation | £6152 |
Convert a bungalow loft | £28902 |
Basement conversion cost | £36402 |