Cheapest builders to convert your basement in Boldon Colliery
Range from the cheapest Basement conversion £26700 (OCC Construction based in NE10) to the dearest Basement conversion £42900 (John Barrett Joiner Builder based in NE37).
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 Boldon Colliery by posting a job with HaMuch and we will send it to extension builders in Boldon Colliery.
Estimates for common extension builder jobs in Boldon Colliery;
| Job | Estimate |
| Underpinning a house | £17200 |
| Build a two storey extension | £87551 |
| Build a timber frame extension | £25700 |
| Install a swimming pool | £80700 |
| Cost to build a single storey extension | £44010 |
| Cost to build a side return extension | £34130 |
| Install an RSJ | £1900 |
| Build an outbuilding | £9700 |
| Build a mansard loft conversion | £51700 |
| Cost of a loft conversion | £30942 |
| Build a kitchen extension | £41700 |
| Build a hip to gable loft conversion | £41700 |
| Build a granny annexe | £86700 |
| Build a garden office | £9700 |
| Convert a garage | £15700 |
| Build a new garage | £18200 |
| Build a flat roof extension | £21700 |
| Build a dormer loft conversion | £41700 |
| Lay a concrete foundation | £5950 |
| Convert a bungalow loft | £28700 |
| Basement conversion cost | £34130 |