Cheapest builders to convert your basement in Kingston Upon Thames
Range from the cheapest Basement conversion £35700 (DECrew based in KT1) to the dearest Basement conversion £36870 (Maple Roofing Ltd based in KT1).
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 Kingston Upon Thames by posting a job with HaMuch and we will send it to extension builders in Kingston Upon Thames.
Estimates for common extension builder jobs in Kingston Upon Thames;
| Job | Estimate |
| Underpinning a house | £17388 |
| Build a two storey extension | £87832 |
| Build a timber frame extension | £25888 |
| Install a swimming pool | £80888 |
| Cost to build a single storey extension | £47766 |
| Cost to build a side return extension | £36244 |
| Install an RSJ | £2088 |
| Build an outbuilding | £9888 |
| Build a mansard loft conversion | £51888 |
| Cost of a loft conversion | £32703 |
| Build a kitchen extension | £41888 |
| Build a hip to gable loft conversion | £41888 |
| Build a granny annexe | £86888 |
| Build a garden office | £9888 |
| Convert a garage | £15888 |
| Build a new garage | £18388 |
| Build a flat roof extension | £21888 |
| Build a dormer loft conversion | £41888 |
| Lay a concrete foundation | £6138 |
| Convert a bungalow loft | £28888 |
| Basement conversion cost | £36244 |