Range from the cheapest Basement conversion £35520 (Gilbert & Gregson Construction Ltd based in SG6) to the dearest Basement conversion £37950 (MG Design & Build based in SG5).
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 Letchworth by posting a job with HaMuch and we will send it to extension builders in Letchworth.
Job | Estimate |
Underpinning a house | £17446 |
Build a two storey extension | £87919 |
Build a timber frame extension | £25946 |
Install a swimming pool | £80946 |
Cost to build a single storey extension | £48925 |
Cost to build a side return extension | £36895 |
Install an RSJ | £2146 |
Build an outbuilding | £9946 |
Build a mansard loft conversion | £51946 |
Cost of a loft conversion | £33246 |
Build a kitchen extension | £41946 |
Build a hip to gable loft conversion | £41946 |
Build a granny annexe | £86946 |
Build a garden office | £9946 |
Convert a garage | £15946 |
Build a new garage | £18446 |
Build a flat roof extension | £21946 |
Build a dormer loft conversion | £41946 |
Lay a concrete foundation | £6196 |
Convert a bungalow loft | £28946 |
Basement conversion cost | £36895 |