Cheapest builders to convert your basement in SW18
Range from the cheapest Basement conversion £35610 (Ryder Maintenance Ltd based in SW18) to the dearest Basement conversion £37050 (Finethorp Limited based in SW18).
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 SW18 by posting a job with HaMuch and we will send it to extension builders in SW18.
Estimates for common extension builder jobs in SW18;
| Job | Estimate |
| Underpinning a house | £17391 |
| Build a two storey extension | £87836 |
| Build a timber frame extension | £25891 |
| Install a swimming pool | £80891 |
| Cost to build a single storey extension | £47811 |
| Cost to build a side return extension | £36269 |
| Install an RSJ | £2091 |
| Build an outbuilding | £9891 |
| Build a mansard loft conversion | £51891 |
| Cost of a loft conversion | £32724 |
| Build a kitchen extension | £41891 |
| Build a hip to gable loft conversion | £41891 |
| Build a granny annexe | £86891 |
| Build a garden office | £9891 |
| Convert a garage | £15891 |
| Build a new garage | £18391 |
| Build a flat roof extension | £21891 |
| Build a dormer loft conversion | £41891 |
| Lay a concrete foundation | £6141 |
| Convert a bungalow loft | £28891 |
| Basement conversion cost | £36269 |