Cheapest builders to convert your basement in PO21
Range from the cheapest Basement conversion £30750 (M R Property Services based in PO19) to the dearest Basement conversion £36600 (James Building Services based in PO18).
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 PO21 by posting a job with HaMuch and we will send it to extension builders in PO21.
Estimates for common extension builder jobs in PO21;
| Job | Estimate |
| Underpinning a house | £17219 |
| Build a two storey extension | £87579 |
| Build a timber frame extension | £25719 |
| Install a swimming pool | £80719 |
| Cost to build a single storey extension | £44387 |
| Cost to build a side return extension | £34343 |
| Install an RSJ | £1919 |
| Build an outbuilding | £9719 |
| Build a mansard loft conversion | £51719 |
| Cost of a loft conversion | £31119 |
| Build a kitchen extension | £41719 |
| Build a hip to gable loft conversion | £41719 |
| Build a granny annexe | £86719 |
| Build a garden office | £9719 |
| Convert a garage | £15719 |
| Build a new garage | £18219 |
| Build a flat roof extension | £21719 |
| Build a dormer loft conversion | £41719 |
| Lay a concrete foundation | £5969 |
| Convert a bungalow loft | £28719 |
| Basement conversion cost | £34343 |