Range from the cheapest Basement conversion £24900 (Animus Construction Ltd based in E6) to the dearest Basement conversion £43800 (S M G Building Contractors based in SE18).
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 Thamesmead by posting a job with HaMuch and we will send it to extension builders in Thamesmead.
Job | Estimate |
Underpinning a house | £17353 |
Build a two storey extension | £87780 |
Build a timber frame extension | £25853 |
Install a swimming pool | £80853 |
Cost to build a single storey extension | £47069 |
Cost to build a side return extension | £35851 |
Install an RSJ | £2053 |
Build an outbuilding | £9853 |
Build a mansard loft conversion | £51853 |
Cost of a loft conversion | £32376 |
Build a kitchen extension | £41853 |
Build a hip to gable loft conversion | £41853 |
Build a granny annexe | £86853 |
Build a garden office | £9853 |
Convert a garage | £15853 |
Build a new garage | £18353 |
Build a flat roof extension | £21853 |
Build a dormer loft conversion | £41853 |
Lay a concrete foundation | £6103 |
Convert a bungalow loft | £28853 |
Basement conversion cost | £35851 |