Range from the cheapest Basement conversion £28500 (Construction based in RM8) to the dearest Basement conversion £42000 (Gusttydo Ltd based in RM10).
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 Becontree by posting a job with HaMuch and we will send it to extension builders in Becontree.
Job | Estimate |
Underpinning a house | £17372 |
Build a two storey extension | £87808 |
Build a timber frame extension | £25872 |
Install a swimming pool | £80872 |
Cost to build a single storey extension | £47446 |
Cost to build a side return extension | £36064 |
Install an RSJ | £2072 |
Build an outbuilding | £9872 |
Build a mansard loft conversion | £51872 |
Cost of a loft conversion | £32553 |
Build a kitchen extension | £41872 |
Build a hip to gable loft conversion | £41872 |
Build a granny annexe | £86872 |
Build a garden office | £9872 |
Convert a garage | £15872 |
Build a new garage | £18372 |
Build a flat roof extension | £21872 |
Build a dormer loft conversion | £41872 |
Lay a concrete foundation | £6122 |
Convert a bungalow loft | £28872 |
Basement conversion cost | £36064 |