Range from the cheapest Basement conversion £25800 (Liverpool Direct Builders based in L14) to the dearest Basement conversion £38625 (Aurora Building company ltd based in L12).
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 Knowsley by posting a job with HaMuch and we will send it to extension builders in Knowsley.
Job | Estimate |
Underpinning a house | £17075 |
Build a two storey extension | £87362 |
Build a timber frame extension | £25575 |
Install a swimming pool | £80575 |
Cost to build a single storey extension | £41498 |
Cost to build a side return extension | £32717 |
Install an RSJ | £1775 |
Build an outbuilding | £9575 |
Build a mansard loft conversion | £51575 |
Cost of a loft conversion | £29765 |
Build a kitchen extension | £41575 |
Build a hip to gable loft conversion | £41575 |
Build a granny annexe | £86575 |
Build a garden office | £9575 |
Convert a garage | £15575 |
Build a flat roof extension | £21575 |
Build a dormer loft conversion | £41575 |
Lay a concrete foundation | £5825 |
Convert a bungalow loft | £28575 |
Basement conversion cost | £32717 |