Range from the cheapest Basement conversion £27600 (Priwood Construction Ltd based in L21) 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 Sefton by posting a job with HaMuch and we will send it to extension builders in Sefton.
Job | Estimate |
Underpinning a house | £17034 |
Build a two storey extension | £87301 |
Build a timber frame extension | £25534 |
Install a swimming pool | £80534 |
Cost to build a single storey extension | £40685 |
Cost to build a side return extension | £32260 |
Install an RSJ | £1734 |
Build an outbuilding | £9534 |
Build a mansard loft conversion | £51534 |
Cost of a loft conversion | £29384 |
Build a kitchen extension | £41534 |
Build a hip to gable loft conversion | £41534 |
Build a granny annexe | £86534 |
Build a garden office | £9534 |
Convert a garage | £15534 |
Build a flat roof extension | £21534 |
Build a dormer loft conversion | £41534 |
Lay a concrete foundation | £5784 |
Convert a bungalow loft | £28534 |
Basement conversion cost | £32260 |