Extension builder estimates (based on hourly rates) to build a single storey extension in Donaghadee
Range from the cheapest single storey extension £29200 (Anak based in BT40) to the dearest single storey extension £34000 (Colin Gilmore Building Contractor based in BT22).
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 Donaghadee by posting a job with HaMuch and we will send it to extension builders in Donaghadee.
Estimates for common extension builder jobs in Donaghadee;
| Job | Estimate |
| Underpinning a house | £16591 |
| Build a two storey extension | £86637 |
| Build a timber frame extension | £25091 |
| Install a swimming pool | £80091 |
| Cost to build a single storey extension | £31820 |
| Cost to build a side return extension | £27274 |
| Install an RSJ | £1291 |
| Build an outbuilding | £9091 |
| Build a mansard loft conversion | £51091 |
| Cost of a loft conversion | £25228 |
| Build a kitchen extension | £41091 |
| Build a hip to gable loft conversion | £41091 |
| Build a granny annexe | £86091 |
| Build a garden office | £9091 |
| Convert a garage | £15091 |
| Build a new garage | £17591 |
| Build a flat roof extension | £21091 |
| Build a dormer loft conversion | £41091 |
| Lay a concrete foundation | £5341 |
| Convert a bungalow loft | £28091 |
| Basement conversion cost | £27274 |