Water Heater Repair in La Crosse, WI
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Cold water and winter outages both work against your water heater here
Groundwater coming into your house starts out cold, and with winter nights in La Crosse County averaging 12°F from December through February, your water heater works harder for eight months of the year to bring it up to temperature. That extra runtime wears on the heating element in an electric unit and the burner assembly in a gas one, and it shows up as a shorter wait before hot water runs out or a tank that never quite gets water as hot as it used to.
Power matters too. Wisconsin saw 18% of households go at least 24 hours without power in 2024, and the county has recorded 21 winter storms and 100 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps working through an outage, but one with electronic ignition will not relight on its own, and an electric water heater simply stops until power is back.
- 12°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 18%
- of Wisconsin households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
A new water heater would cut about $40 a year off hot water for a typical Wisconsin home.
Estimates for a typical Wisconsin home, compared with an older unit built to the federal minimum, from EIA household energy data and Wisconsin fuel prices. Your home will differ.
Repair makes sense when an element, thermostat or gas valve has failed.
Replacement makes sense when the tank itself is leaking.
- Why is my water heater leaking from the bottom?
- Most of the time this means the tank itself has rusted through, and that's not something that can be patched. Water expands as it heats, and years of that cycle wear on the tank from the inside until it gives out at a seam or the bottom. It can also be a loose drain valve or a fitting that's failed, and those are worth checking before you assume the worst. If the tank itself is rusted through, the water heater needs to be replaced, not repaired.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple, the small part that senses the pilot flame and tells the gas valve to stay open. When it wears out, it stops sensing the flame correctly and shuts the gas off even though the pilot is lit. A dirty pilot tube or a draft in the area can also blow the flame out or keep it too weak to register. A contractor can test the thermocouple and replace it if that's the problem.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable. Mineral buildup on the heat exchanger is common and is usually cleared with a descaling flush, especially in homes with hard water. Igniters, flow sensors, and circuit boards can also fail on their own and be replaced without replacing the whole unit. A contractor will need to check the specific fault code or symptom to know which part is involved.