Range from the cheapest Basement conversion £27330 (Perfectstart Ltd based in E12) to the dearest Basement conversion £36870 (Maconti Design 3000 based in E12).
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 IG4 by posting a job with HaMuch and we will send it to extension builders in IG4.
Job | Estimate |
Underpinning a house | £17310 |
Build a two storey extension | £87715 |
Build a timber frame extension | £25810 |
Install a swimming pool | £80810 |
Cost to build a single storey extension | £46205 |
Cost to build a side return extension | £35365 |
Install an RSJ | £2010 |
Build an outbuilding | £9810 |
Build a mansard loft conversion | £51810 |
Cost of a loft conversion | £31971 |
Build a kitchen extension | £41810 |
Build a hip to gable loft conversion | £41810 |
Build a granny annexe | £86810 |
Build a garden office | £9810 |
Convert a garage | £15810 |
Build a new garage | £18310 |
Build a flat roof extension | £21810 |
Build a dormer loft conversion | £41810 |
Lay a concrete foundation | £6060 |
Convert a bungalow loft | £28810 |
Basement conversion cost | £35365 |