Cheapest builders to convert your basement in ST17
Range from the cheapest Basement conversion £31200 (Build Your Rooms Ltd based in WS15) to the dearest Basement conversion £33540 (Carol Ash based in ST16).
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 ST17 by posting a job with HaMuch and we will send it to extension builders in ST17.
Estimates for common extension builder jobs in ST17;
| Job | Estimate |
| Underpinning a house | £17078 |
| Build a two storey extension | £87366 |
| Build a timber frame extension | £25578 |
| Install a swimming pool | £80578 |
| Cost to build a single storey extension | £41552 |
| Cost to build a side return extension | £32748 |
| Install an RSJ | £1778 |
| Build an outbuilding | £9578 |
| Build a mansard loft conversion | £51578 |
| Cost of a loft conversion | £29790 |
| Build a kitchen extension | £41578 |
| Build a hip to gable loft conversion | £41578 |
| Build a granny annexe | £86578 |
| Build a garden office | £9578 |
| Convert a garage | £15578 |
| Build a new garage | £18078 |
| Build a flat roof extension | £21578 |
| Build a dormer loft conversion | £41578 |
| Lay a concrete foundation | £5828 |
| Convert a bungalow loft | £28578 |
| Basement conversion cost | £32748 |