Range from the cheapest Basement conversion £26700 (RIDGE ROOF & BLDNG MAINT LTD based in EX14) to the dearest Basement conversion £51720 (Ashlar Historic Building Repairs based in DT6).
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 Seaton by posting a job with HaMuch and we will send it to extension builders in Seaton.
Job | Estimate |
Underpinning a house | £17210 |
Build a two storey extension | £87566 |
Build a timber frame extension | £25710 |
Install a swimming pool | £80710 |
Cost to build a single storey extension | £44208 |
Cost to build a side return extension | £34242 |
Install an RSJ | £1910 |
Build an outbuilding | £9710 |
Build a mansard loft conversion | £51710 |
Cost of a loft conversion | £31035 |
Build a kitchen extension | £41710 |
Build a hip to gable loft conversion | £41710 |
Build a granny annexe | £86710 |
Build a garden office | £9710 |
Convert a garage | £15710 |
Build a new garage | £18210 |
Build a flat roof extension | £21710 |
Build a dormer loft conversion | £41710 |
Lay a concrete foundation | £5960 |
Convert a bungalow loft | £28710 |
Basement conversion cost | £34242 |