Range from the cheapest Basement conversion £34530 (Concept Solutions Bristol Ltd based in BS15) to the dearest Basement conversion £35520 (Commercial Building Maintenance Services based in BS30).
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 Keynsham by posting a job with HaMuch and we will send it to extension builders in Keynsham.
Job | Estimate |
Underpinning a house | £17272 |
Build a two storey extension | £87658 |
Build a timber frame extension | £25772 |
Install a swimming pool | £80772 |
Cost to build a single storey extension | £45443 |
Cost to build a side return extension | £34937 |
Install an RSJ | £1972 |
Build an outbuilding | £9772 |
Build a mansard loft conversion | £51772 |
Cost of a loft conversion | £31614 |
Build a kitchen extension | £41772 |
Build a hip to gable loft conversion | £41772 |
Build a granny annexe | £86772 |
Build a garden office | £9772 |
Convert a garage | £15772 |
Build a new garage | £18272 |
Build a flat roof extension | £21772 |
Build a dormer loft conversion | £41772 |
Lay a concrete foundation | £6022 |
Convert a bungalow loft | £28772 |
Basement conversion cost | £34937 |