Cheapest builders to convert your basement in B31
Range from the cheapest Basement conversion £31200 (West Heritage Bricklayers based in B90) to the dearest Basement conversion £33270 (Maya Designs Ltd based in B17).
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 B31 by posting a job with HaMuch and we will send it to extension builders in B31.
Estimates for common extension builder jobs in B31;
| Job | Estimate |
| Underpinning a house | £17073 |
| Build a two storey extension | £87359 |
| Build a timber frame extension | £25573 |
| Install a swimming pool | £80573 |
| Cost to build a single storey extension | £41456 |
| Cost to build a side return extension | £32694 |
| Install an RSJ | £1773 |
| Build an outbuilding | £9573 |
| Build a mansard loft conversion | £51573 |
| Cost of a loft conversion | £29745 |
| Build a kitchen extension | £41573 |
| Build a hip to gable loft conversion | £41573 |
| Build a granny annexe | £86573 |
| Build a garden office | £9573 |
| Convert a garage | £15573 |
| Build a flat roof extension | £21573 |
| Build a dormer loft conversion | £41573 |
| Lay a concrete foundation | £5823 |
| Convert a bungalow loft | £28573 |
| Basement conversion cost | £32694 |