Cheapest builders to convert your basement in Doncaster
Range from the cheapest Basement conversion £28500 (J&J Builders based in DN2) to the dearest Basement conversion £51000 (Green Exteriors Ltd based in S60).
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 Doncaster by posting a job with HaMuch and we will send it to extension builders in Doncaster.
Estimates for common extension builder jobs in Doncaster;
| Job | Estimate |
| Underpinning a house | £17218 |
| Build a two storey extension | £87577 |
| Build a timber frame extension | £25718 |
| Install a swimming pool | £80718 |
| Cost to build a single storey extension | £44362 |
| Cost to build a side return extension | £34328 |
| Install an RSJ | £1918 |
| Build an outbuilding | £9718 |
| Build a mansard loft conversion | £51718 |
| Cost of a loft conversion | £31107 |
| Build a kitchen extension | £41718 |
| Build a hip to gable loft conversion | £41718 |
| Build a granny annexe | £86718 |
| Build a garden office | £9718 |
| Convert a garage | £15718 |
| Build a flat roof extension | £21718 |
| Build a dormer loft conversion | £41718 |
| Lay a concrete foundation | £5968 |
| Convert a bungalow loft | £28718 |
| Basement conversion cost | £34328 |