Range from the cheapest Basement conversion £21120 (Leon Morgan based in NP12) to the dearest Basement conversion £33090 (JSP Building Contractors Ltd based in NP4).
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 NP23 by posting a job with HaMuch and we will send it to extension builders in NP23.
Job | Estimate |
Underpinning a house | £16916 |
Build a two storey extension | £87124 |
Build a timber frame extension | £25416 |
Install a swimming pool | £80416 |
Cost to build a single storey extension | £38314 |
Cost to build a side return extension | £30926 |
Install an RSJ | £1616 |
Build an outbuilding | £9416 |
Build a mansard loft conversion | £51416 |
Cost of a loft conversion | £28272 |
Build a kitchen extension | £41416 |
Build a hip to gable loft conversion | £41416 |
Build a granny annexe | £86416 |
Build a garden office | £9416 |
Convert a garage | £15416 |
Build a new garage | £17916 |
Build a flat roof extension | £21416 |
Build a dormer loft conversion | £41416 |
Lay a concrete foundation | £5666 |
Convert a bungalow loft | £28416 |
Basement conversion cost | £30926 |