Extension builder estimates (based on hourly rates) to build a single storey extension in Castlewellan
Range from the cheapest single storey extension £32720 (Apex pharaoh ltd based in bt30) to the dearest single storey extension £35600 (Ballygrange Contracts based in BT34).
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 Castlewellan by posting a job with HaMuch and we will send it to extension builders in Castlewellan.
Estimates for common extension builder jobs in Castlewellan;
| Job | Estimate |
| Underpinning a house | £16691 |
| Build a two storey extension | £86786 |
| Build a timber frame extension | £25191 |
| Install a swimming pool | £80191 |
| Cost to build a single storey extension | £33817 |
| Cost to build a side return extension | £28397 |
| Install an RSJ | £1391 |
| Build an outbuilding | £9191 |
| Build a mansard loft conversion | £51191 |
| Cost of a loft conversion | £26164 |
| Build a kitchen extension | £41191 |
| Build a hip to gable loft conversion | £41191 |
| Build a granny annexe | £86191 |
| Build a garden office | £9191 |
| Convert a garage | £15191 |
| Build a new garage | £17691 |
| Build a flat roof extension | £21191 |
| Build a dormer loft conversion | £41191 |
| Lay a concrete foundation | £5441 |
| Convert a bungalow loft | £28191 |
| Basement conversion cost | £28397 |
Rates for other Castlewellan trades
Extension Builders in Castlewellan
| Business name | Single storey extension cost |
|---|---|
| N W Doyle & Son, Ballynahinch, BT24 | £34000 |
| Ballygrange Contracts, Down, BT34 | £35600 |
| JDL Contracts, Newry, BT34 | £34000 |
| apex pharaoh ltd, Down, bt30 | £32720 |
| AK Building Services, , BT8 | £33040 |
| The Method Group, Gibson's Hill, Craigavon, BT66 | £34480 |
| R.J Builders, , BT67 | £32880 |