Extension builder estimates (based on hourly rates) to build a single storey extension in Coleraine
Range from the cheapest single storey extension £35600 (C McGurk Building Contractor based in BT44) to the dearest single storey extension £42000 (FJS CONTRACTS LTD based in BT45).
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 Coleraine by posting a job with HaMuch and we will send it to extension builders in Coleraine.
Estimates for common extension builder jobs in Coleraine;
| Job | Estimate |
| Underpinning a house | £16944 |
| Build a two storey extension | £87166 |
| Build a timber frame extension | £25444 |
| Install a swimming pool | £80444 |
| Cost to build a single storey extension | £38880 |
| Cost to build a side return extension | £31245 |
| Install an RSJ | £1644 |
| Build an outbuilding | £9444 |
| Build a mansard loft conversion | £51444 |
| Cost of a loft conversion | £28538 |
| Build a kitchen extension | £41444 |
| Build a hip to gable loft conversion | £41444 |
| Build a granny annexe | £86444 |
| Build a garden office | £9444 |
| Convert a garage | £15444 |
| Build a new garage | £17944 |
| Build a flat roof extension | £21444 |
| Build a dormer loft conversion | £41444 |
| Lay a concrete foundation | £5694 |
| Convert a bungalow loft | £28444 |
| Basement conversion cost | £31245 |
Rates for other Coleraine trades
Extension Builders in Coleraine
| Business name | Single storey extension cost |
|---|---|
| SF Carpentry, Londonderry, BT51 | £38960 |
| purdy build, Antrim, bt53 | £36080 |
| Luxury Garden Studios, Londonderry, BT47 | £38640 |
| C McGurk Building Contractor, Belfast , BT44 | £35600 |
| FJS CONTRACTS LTD, Magherfelt , BT45 | £42000 |
| Seamus Mcmullan building and joinery, Draperstown , BT45 | £42000 |