Cheapest builders to convert your basement in Lisburn
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 Lisburn by posting a job with HaMuch and we will send it to extension builders in Lisburn.
Estimates for common extension builder jobs in Lisburn;
| Job | Estimate |
| Underpinning a house | £16676 |
| Build a two storey extension | £86764 |
| Build a timber frame extension | £25176 |
| Install a swimming pool | £80176 |
| Cost to build a single storey extension | £33520 |
| Cost to build a side return extension | £28230 |
| Install an RSJ | £1376 |
| Build an outbuilding | £9176 |
| Build a mansard loft conversion | £51176 |
| Cost of a loft conversion | £26025 |
| Build a kitchen extension | £41176 |
| Build a hip to gable loft conversion | £41176 |
| Build a granny annexe | £86176 |
| Build a garden office | £9176 |
| Convert a garage | £15176 |
| Build a flat roof extension | £21176 |
| Build a dormer loft conversion | £41176 |
| Lay a concrete foundation | £5426 |
| Convert a bungalow loft | £28176 |
| Basement conversion cost | £28230 |
Rates for other Lisburn trades
Extension Builders in Lisburn
| Business name | Basement conversion cost |
|---|---|
| Extended living by Gilbert-Ash, 47 Boucher Road, Belfast, BT12 | £27060 |
| AK Building Services, , BT8 | £27960 |
| Browns Joinery, Crumlin, BT29 | £33000 |
| R.J Builders, , BT67 | £27870 |
| PC Building, , BT67 | £28050 |
| McM Joinery , Belfast , BT36 | £25800 |
| The Method Group, Gibson's Hill, Craigavon, BT66 | £28770 |
| R L Contracts, Newtownabbey, BT36 | £24000 |
| N W Doyle & Son, Ballynahinch, BT24 | £28500 |
| apex pharaoh ltd, Down, bt30 | £27780 |
| DGA, Antrim, BT37 | £28050 |
| Terry Design, Belfast, Armagh, BT62 | £31920 |