Cheapest builders to convert your basement in M9
Range from the cheapest Basement conversion £25800 (Aquatec Builder based in OL10) to the dearest Basement conversion £37500 (Goldcrest Finance based in M3).
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 M9 by posting a job with HaMuch and we will send it to extension builders in M9.
Estimates for common extension builder jobs in M9;
| Job | Estimate |
| Underpinning a house | £17086 |
| Build a two storey extension | £87379 |
| Build a timber frame extension | £25586 |
| Install a swimming pool | £80586 |
| Cost to build a single storey extension | £41725 |
| Cost to build a side return extension | £32845 |
| Install an RSJ | £1786 |
| Build an outbuilding | £9586 |
| Build a mansard loft conversion | £51586 |
| Cost of a loft conversion | £29871 |
| Build a kitchen extension | £41586 |
| Build a hip to gable loft conversion | £41586 |
| Build a granny annexe | £86586 |
| Build a garden office | £9586 |
| Convert a garage | £15586 |
| Build a new garage | £18086 |
| Build a flat roof extension | £21586 |
| Build a dormer loft conversion | £41586 |
| Lay a concrete foundation | £5836 |
| Convert a bungalow loft | £28586 |
| Basement conversion cost | £32845 |