Range from the cheapest Basement conversion £28500 (Rafs based in ME15) to the dearest Basement conversion £58200 (Transform Builders based in TN12).
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 Langley by posting a job with HaMuch and we will send it to extension builders in Langley.
05/09/2023
Basement conversion
Job | Estimate |
Underpinning a house | £17334 |
Build a two storey extension | £87751 |
Build a timber frame extension | £25834 |
Install a swimming pool | £80834 |
Cost to build a single storey extension | £46685 |
Cost to build a side return extension | £35635 |
Install an RSJ | £2034 |
Build an outbuilding | £9834 |
Build a mansard loft conversion | £51834 |
Cost of a loft conversion | £32196 |
Build a kitchen extension | £41834 |
Build a hip to gable loft conversion | £41834 |
Build a granny annexe | £86834 |
Build a garden office | £9834 |
Convert a garage | £15834 |
Build a new garage | £18334 |
Build a flat roof extension | £21834 |
Build a dormer loft conversion | £41834 |
Lay a concrete foundation | £6084 |
Convert a bungalow loft | £28834 |
Basement conversion cost | £35635 |