Cheapest builders to convert your basement in Portslade
Range from the cheapest Basement conversion £33810 (Black Olive Construction Ltd based in BN1) to the dearest Basement conversion £60000 (AM General Building Brighton Ltd based in BN2).
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 Portslade by posting a job with HaMuch and we will send it to extension builders in Portslade.
Estimates for common extension builder jobs in Portslade;
| Job | Estimate |
| Underpinning a house | £17320 |
| Build a two storey extension | £87731 |
| Build a timber frame extension | £25820 |
| Install a swimming pool | £80820 |
| Cost to build a single storey extension | £46410 |
| Cost to build a side return extension | £35480 |
| Install an RSJ | £2020 |
| Build an outbuilding | £9820 |
| Build a mansard loft conversion | £51820 |
| Cost of a loft conversion | £32067 |
| Build a kitchen extension | £41820 |
| Build a hip to gable loft conversion | £41820 |
| Build a granny annexe | £86820 |
| Build a garden office | £9820 |
| Convert a garage | £15820 |
| Build a new garage | £18320 |
| Build a flat roof extension | £21820 |
| Build a dormer loft conversion | £41820 |
| Lay a concrete foundation | £6070 |
| Convert a bungalow loft | £28820 |
| Basement conversion cost | £35480 |