Cheapest builders to convert your basement in BT20
Range from the cheapest Basement conversion £24000 (R L Contracts based in BT36) to the dearest Basement conversion £33000 (Browns Joinery based in BT29).
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 BT20 by posting a job with HaMuch and we will send it to extension builders in BT20.
Estimates for common extension builder jobs in BT20;
| Job | Estimate |
| Underpinning a house | £16616 |
| Build a two storey extension | £86673 |
| Build a timber frame extension | £25116 |
| Install a swimming pool | £80116 |
| Cost to build a single storey extension | £32311 |
| Cost to build a side return extension | £27550 |
| Install an RSJ | £1316 |
| Build an outbuilding | £9116 |
| Build a mansard loft conversion | £51116 |
| Cost of a loft conversion | £25458 |
| Build a kitchen extension | £41116 |
| Build a hip to gable loft conversion | £41116 |
| Build a granny annexe | £86116 |
| Build a garden office | £9116 |
| Convert a garage | £15116 |
| Build a new garage | £17616 |
| Build a flat roof extension | £21116 |
| Build a dormer loft conversion | £41116 |
| Lay a concrete foundation | £5366 |
| Convert a bungalow loft | £28116 |
| Basement conversion cost | £27550 |
Rates for other BT20 trades
Extension Builders in BT20
| Business name | Basement conversion cost |
|---|---|
| DGA, Antrim, BT37 | £28050 |
| R L Contracts, Newtownabbey, BT36 | £24000 |
| McM Joinery , Belfast , BT36 | £25800 |
| AK Building Services, , BT8 | £27960 |
| Extended living by Gilbert-Ash, 47 Boucher Road, Belfast, BT12 | £27060 |
| apex pharaoh ltd, Down, bt30 | £27780 |
| Anak , larne, BT40 | £25800 |
| Colin Gilmore Building Contractor, Newtownards, BT22 | £28500 |
| Browns Joinery, Crumlin, BT29 | £33000 |