Range from the cheapest single storey extension £26000 (R L Contracts based in BT36) to the dearest single storey extension £42000 (Browns Joinery based in BT29).
Comparing extension builders estimates for fitting a downstairs toilet 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 to build a single storey extension in Ballygowan by posting a job with HaMuch and we will send it to extension builders in Ballygowan.
Job | Estimate |
Underpinning a house | £16640 |
Build a two storey extension | £86710 |
Build a timber frame extension | £25140 |
Install a swimming pool | £80140 |
Cost to build a single storey extension | £32800 |
Cost to build a side return extension | £27825 |
Install an RSJ | £1340 |
Build an outbuilding | £9140 |
Build a mansard loft conversion | £51140 |
Cost of a loft conversion | £25688 |
Build a kitchen extension | £41140 |
Build a hip to gable loft conversion | £41140 |
Build a granny annexe | £86140 |
Build a garden office | £9140 |
Convert a garage | £15140 |
Build a new garage | £17640 |
Build a flat roof extension | £21140 |
Build a dormer loft conversion | £41140 |
Lay a concrete foundation | £5390 |
Convert a bungalow loft | £28140 |
Basement conversion cost | £27825 |
Business name | Single storey extension cost |
---|---|
apex pharaoh ltd, Down, bt30 | £32720 |
AK Building Services, , BT8 | £33040 |
Extended living by Gilbert-Ash, 47 Boucher Road, Belfast, BT12 | £31440 |
R L Contracts, Newtownabbey, BT36 | £26000 |
Colin Gilmore Building Contractor, Newtownards, BT22 | £34000 |
N W Doyle & Son, Ballynahinch, BT24 | £34000 |
McM Joinery , Belfast , BT39 | £29200 |
Browns Joinery, Crumlin, BT29 | £42000 |