Cheapest builders to convert your basement in CT18
Range from the cheapest Basement conversion £28500 (Cross Builders based in CT19) to the dearest Basement conversion £42000 (IAN HOTHAM BUILDING & MAINTENANCE based in CT18).
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 CT18 by posting a job with HaMuch and we will send it to extension builders in CT18.
Estimates for common extension builder jobs in CT18;
| Job | Estimate |
| Underpinning a house | £17108 |
| Build a two storey extension | £87412 |
| Build a timber frame extension | £25608 |
| Install a swimming pool | £80608 |
| Cost to build a single storey extension | £42160 |
| Cost to build a side return extension | £33090 |
| Install an RSJ | £1808 |
| Build an outbuilding | £9608 |
| Build a mansard loft conversion | £51608 |
| Cost of a loft conversion | £30075 |
| Build a kitchen extension | £41608 |
| Build a hip to gable loft conversion | £41608 |
| Build a granny annexe | £86608 |
| Build a garden office | £9608 |
| Convert a garage | £15608 |
| Build a new garage | £18108 |
| Build a flat roof extension | £21608 |
| Build a dormer loft conversion | £41608 |
| Lay a concrete foundation | £5858 |
| Convert a bungalow loft | £28608 |
| Basement conversion cost | £33090 |