Range from the cheapest single storey extension £35600 (C McGurk Building Contractor based in BT44) to the dearest single storey extension £38960 (SF Carpentry based in BT51).
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 Ballymoney by posting a job with HaMuch and we will send it to extension builders in Ballymoney.
Job | Estimate |
Underpinning a house | £16844 |
Build a two storey extension | £87016 |
Build a timber frame extension | £25344 |
Install a swimming pool | £80344 |
Cost to build a single storey extension | £36880 |
Cost to build a side return extension | £30120 |
Install an RSJ | £1544 |
Build an outbuilding | £9344 |
Build a mansard loft conversion | £51344 |
Cost of a loft conversion | £27600 |
Build a kitchen extension | £41344 |
Build a hip to gable loft conversion | £41344 |
Build a granny annexe | £86344 |
Build a garden office | £9344 |
Convert a garage | £15344 |
Build a new garage | £17844 |
Build a flat roof extension | £21344 |
Build a dormer loft conversion | £41344 |
Lay a concrete foundation | £5594 |
Convert a bungalow loft | £28344 |
Basement conversion cost | £30120 |
Business name | Single storey extension cost |
---|---|
purdy build, Antrim, bt53 | £36080 |
SF Carpentry, Londonderry, BT51 | £38960 |
C McGurk Building Contractor, Belfast , BT44 | £35600 |