Range from the cheapest Basement conversion £33000 (CVI.BUILDERS LTD based in E13) to the dearest Basement conversion £36870 (Sequoia Homes Ltd based in E15).
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 E15 by posting a job with HaMuch and we will send it to extension builders in E15.
31/08/2023
Basement conversion
30/08/2023
Side return extension
Job | Estimate |
Underpinning a house | £17394 |
Build a two storey extension | £87842 |
Build a timber frame extension | £25894 |
Install a swimming pool | £80894 |
Cost to build a single storey extension | £47888 |
Cost to build a side return extension | £36312 |
Install an RSJ | £2094 |
Build an outbuilding | £9894 |
Build a mansard loft conversion | £51894 |
Cost of a loft conversion | £32760 |
Build a kitchen extension | £41894 |
Build a hip to gable loft conversion | £41894 |
Build a granny annexe | £86894 |
Build a garden office | £9894 |
Convert a garage | £15894 |
Build a new garage | £18394 |
Build a flat roof extension | £21894 |
Build a dormer loft conversion | £41894 |
Lay a concrete foundation | £6144 |
Convert a bungalow loft | £28894 |
Basement conversion cost | £36312 |