Cheapest builders to convert your basement in Hammersmith
Range from the cheapest Basement conversion £35700 (Design 2 Finish based in SW13) to the dearest Basement conversion £36870 (New Line Construction Ltd based in W6).
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 Hammersmith by posting a job with HaMuch and we will send it to extension builders in Hammersmith.
Recent Jobs
07/08/2023
Extension Builder near W4
Basement conversion
Estimates for common extension builder jobs in Hammersmith;
| Job | Estimate |
| Underpinning a house | £17400 |
| Build a two storey extension | £87850 |
| Build a timber frame extension | £25900 |
| Install a swimming pool | £80900 |
| Cost to build a single storey extension | £47997 |
| Cost to build a side return extension | £36373 |
| Install an RSJ | £2100 |
| Build an outbuilding | £9900 |
| Build a mansard loft conversion | £51900 |
| Cost of a loft conversion | £32811 |
| Build a kitchen extension | £41900 |
| Build a hip to gable loft conversion | £41900 |
| Build a granny annexe | £86900 |
| Build a garden office | £9900 |
| Convert a garage | £15900 |
| Build a new garage | £18400 |
| Build a flat roof extension | £21900 |
| Build a dormer loft conversion | £41900 |
| Lay a concrete foundation | £6150 |
| Convert a bungalow loft | £28900 |
| Basement conversion cost | £36373 |