Two kinds of freeze calls in Yukon
Yukon covers 26.6 square miles, but most of it isn't subdivisions. The city's comprehensive plan counts about 68 percent of the land inside city limits as agricultural, much of it the floodplain of the North Canadian River in north Yukon, along with farms and single-family homes on large lots. The plan expects little to no city water or sewer service in those areas, so homes there run on private wells.
That splits our freeze calls in two. In town, it is usually a supply line in a garage wall, an attic or an exterior wall of a house built around 1979, the city's median build year according to Census estimates. Out on the large lots, it is the well house, the pressure tank, the yard line to the house or a barn hydrant, all sitting in open country with little to break the wind.
Where pipes freeze in Yukon's in-town homes
Builders in the 1970s and 80s often ran water lines through spaces that get cold. When a hard freeze arrives, these are the spots we thaw most:
- Supply lines on the garage side of a wall, especially near the water heater or laundry
- Attic runs to a second bathroom or over the garage
- Kitchen and bath lines inside north- and west-facing exterior walls
- Hose bibs and the short pipe behind them
- The spot where the main line rises out of the slab or ground into the house
That 20°F alert line, which IBHS draws from University of Illinois building research, is a good trigger for protecting these spots. A cold night with wind can reach that point for an exposed pipe faster than the thermometer suggests. The February 2021 outbreak, which bottomed out at minus 14°F in Oklahoma City, went far past it.
Well houses, pressure tanks and yard lines
On a well property, a freeze can take out the whole water supply at once. The pressure tank and switch usually sit in a small well house or shed, and the tubing to the pressure switch is thin enough to freeze before anything else. When it does, the pump may not start, or may run against a frozen line. Yard lines buried too shallow, and frost-free hydrants that weren't drained properly, freeze next.
The City of Yukon lists water wells as one of its plumbing inspection categories, so repairs that go beyond thawing may involve the city. We thaw the line or tank, check the switch, gauge and tank for damage, and recommend heat, insulation or deeper burial where a line freezes year after year.
Sprinkler backflow preventers
Yukon permits sprinkler systems and backflow prevention devices, and the city inspects irrigation and backflow work. The backflow preventer on a lawn system usually sits above ground near the house, where it is fully exposed. If it isn't drained before the first hard freeze, the brass body and test cocks can crack. We drain and protect them in fall, and repair or replace frozen ones when the damage is already done.
How we thaw and repair
- Close what needs closing. If a split is possible, we have you shut the main or turn off the well pump first.
- Find the freeze. We trace dead fixtures back to the frozen section.
- Thaw gently. Controlled heat, working from the open end toward the ice.
- Check for splits. We pressurize and inspect the thawed run and its fittings.
- Fix the cause. Insulation, sealing a draft, rerouting or a frost-free fixture.
Our main frozen pipe repair and thawing page covers thawing methods and costs in detail, and our Yukon plumber page has more on local housing and water.