Winter at Wānaka Airport
NIWA's station at Wānaka Airport averages 20 air frosts in July, 17 in June and 14 in August. Ground frosts run to 22 in July. That's more July air frosts than Queenstown records.
Outdoor taps, pipes under the house and bare pipework at the cylinder are where frost bites first. Our burst and frozen pipes page covers what to do if one splits.
Wānaka facts that shape a job
Nearly a third of homes empty
On census night in 2023, 2,196 of the 7,155 private dwellings in the Wānaka urban area were unoccupied. If the house is often empty, a leak can run unseen; turning the water off at the toby when you leave is worth asking a plumber about.
Fires in most homes
61.1% of Wānaka homes used a wood burner as a main heater in 2023, more than double the national 28.2%. Fixed gas heaters were in 16.2%, against 9.5%. Gas work needs an authorised gasfitter, and a fire-heated cylinder has its own wetback rules.
The lake can come in through the stormwater
Otago Regional Council says low-lying areas beside Ardmore Street may flood when lake water backs up through the stormwater system, even before the lake spills over the street. In January 1994 it rose more than 2 metres in a day, and it can take a week or more to fall.
Trusts own a quarter
24.8% of Wānaka households held their home in a family trust, against 11.1% nationally. If that's yours, check who can approve the work before the tradie starts.
Who looks after the public pipes
Queenstown Lakes District Council delivers Wānaka's water now. Its company, Alpine Water, was incorporated on 30 June 2026 and is due to go live on 1 July 2027. Until it does, the council is the one to ring before anyone digs near the boundary.
Find the licence on the register
Ask whoever is quoting for the name of each person who'll be on site. Look each one up on the PGDB register, using first and last name, and look for the green tick of a current licence. Ask them to show the licence too, and check it's for the right trade. Our guide.
What we would do
Before you leave the house for a winter week, make sure someone local knows where the toby is and can get in. Ask a plumber whether your pipes and cylinder are protected well enough for frosts this hard. If you're near the lakefront, keep an eye on the yard drains when the lake is high. When something needs fixing, send it to us and an authorised Wānaka plumber or drainlayer who covers your area can take it.