Range from the cheapest Basement conversion £28500 (Royal Roofing & building contractors based in SS12) to the dearest Basement conversion £37500 (Clive Williams based in CM13).
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 Billericay West by posting a job with HaMuch and we will send it to extension builders in Billericay West.
Job | Estimate |
Underpinning a house | £17288 |
Build a two storey extension | £87681 |
Build a timber frame extension | £25788 |
Install a swimming pool | £80788 |
Cost to build a single storey extension | £45750 |
Cost to build a side return extension | £35110 |
Install an RSJ | £1988 |
Build an outbuilding | £9788 |
Build a mansard loft conversion | £51788 |
Cost of a loft conversion | £31758 |
Build a kitchen extension | £41788 |
Build a hip to gable loft conversion | £41788 |
Build a granny annexe | £86788 |
Build a garden office | £9788 |
Convert a garage | £15788 |
Build a new garage | £18288 |
Build a flat roof extension | £21788 |
Build a dormer loft conversion | £41788 |
Lay a concrete foundation | £6038 |
Convert a bungalow loft | £28788 |
Basement conversion cost | £35110 |