Range from the cheapest Basement conversion £35700 (CleanDay London Ltd based in SW12) to the dearest Basement conversion £60000 (Felix Building based in SW16).
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 SW12 by posting a job with HaMuch and we will send it to extension builders in SW12.
Job | Estimate |
Underpinning a house | £17484 |
Build a two storey extension | £87976 |
Build a timber frame extension | £25984 |
Install a swimming pool | £80984 |
Cost to build a single storey extension | £49674 |
Cost to build a side return extension | £37316 |
Install an RSJ | £2184 |
Build an outbuilding | £9984 |
Build a mansard loft conversion | £51984 |
Cost of a loft conversion | £33597 |
Build a kitchen extension | £41984 |
Build a hip to gable loft conversion | £41984 |
Build a granny annexe | £86984 |
Build a garden office | £9984 |
Convert a garage | £15984 |
Build a new garage | £18484 |
Build a flat roof extension | £21984 |
Build a dormer loft conversion | £41984 |
Lay a concrete foundation | £6234 |
Convert a bungalow loft | £28984 |
Basement conversion cost | £37316 |