Cheapest builders to convert your basement in SW1H
Range from the cheapest Basement conversion £16800 (London Design And Build based in SW1A) to the dearest Basement conversion £36870 (Adamko Dry Lining London based in WC2N).
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 SW1H by posting a job with HaMuch and we will send it to extension builders in SW1H.
Estimates for common extension builder jobs in SW1H;
| Job | Estimate |
| Underpinning a house | £17325 |
| Build a two storey extension | £87737 |
| Build a timber frame extension | £25825 |
| Install a swimming pool | £80825 |
| Cost to build a single storey extension | £46493 |
| Cost to build a side return extension | £35527 |
| Install an RSJ | £2025 |
| Build an outbuilding | £9825 |
| Build a mansard loft conversion | £51825 |
| Cost of a loft conversion | £32106 |
| Build a kitchen extension | £41825 |
| Build a hip to gable loft conversion | £41825 |
| Build a granny annexe | £86825 |
| Build a garden office | £9825 |
| Convert a garage | £15825 |
| Build a new garage | £18325 |
| Build a flat roof extension | £21825 |
| Build a dormer loft conversion | £41825 |
| Lay a concrete foundation | £6075 |
| Convert a bungalow loft | £28825 |
| Basement conversion cost | £35527 |