Cheapest builders to convert your basement in Cardiff
Range from the cheapest Basement conversion £25800 (Penarth Loft Conversions Ltd based in CF64) to the dearest Basement conversion £42000 (Parker Construction based in CF14).
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 Cardiff by posting a job with HaMuch and we will send it to extension builders in Cardiff.
Estimates for common extension builder jobs in Cardiff;
| Job | Estimate |
| Underpinning a house | £17019 |
| Build a two storey extension | £87278 |
| Build a timber frame extension | £25519 |
| Install a swimming pool | £80519 |
| Cost to build a single storey extension | £40374 |
| Cost to build a side return extension | £32086 |
| Install an RSJ | £1719 |
| Build an outbuilding | £9519 |
| Build a mansard loft conversion | £51519 |
| Cost of a loft conversion | £29238 |
| Build a kitchen extension | £41519 |
| Build a hip to gable loft conversion | £41519 |
| Build a granny annexe | £86519 |
| Build a garden office | £9519 |
| Convert a garage | £15519 |
| Build a flat roof extension | £21519 |
| Build a dormer loft conversion | £41519 |
| Lay a concrete foundation | £5769 |
| Convert a bungalow loft | £28519 |
| Basement conversion cost | £32086 |