Water Heater Repair in Bozeman, MT
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Cold groundwater and long winters wear on a water heater here
Gallatin County water heaters work against cold incoming water for most of the year, since homes need heat from September through June. Colder water means the burner or the elements run longer to reach the same temperature, and that extra runtime adds up over a winter that stretches ten months.
Winter nights averaging 13°F also mean more strain on the whole system when the power goes out. Montana saw 18% of households lose power for at least 24 hours in 2024, and Gallatin County has logged 124 winter storms and 77 damaging wind events over the past ten years. Most water heaters come back on by themselves once power returns, but a tank that sat cold during a long outage takes time to recover, and you will notice it first as water that will not get hot fast enough.
- 13°F
- the average winter night, and colder incoming water means longer heating
- 10 months
- September through June, the months homes here need heat
- 18%
- of Montana 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 $60 a year off hot water for a typical Montana home.
Estimates for a typical Montana home, compared with an older unit built to the federal minimum, from EIA household energy data and Montana 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?
- The most common reason is the tank itself has rusted through and is failing from the inside. Sediment builds up on the bottom of the tank over years, and it corrodes the steel underneath it until the tank can no longer hold water. A leaking tank cannot be sealed or patched. It means the water heater needs to be replaced. Water pooling at the bottom can also come from a loose drain valve or a fitting where the pipes connect, and those a contractor can often fix without replacing anything, so it is worth having someone check before you assume the tank is done.
- Why won't the pilot light on my water heater stay lit?
- The thermocouple is the usual cause. It is the small sensor that sits in the pilot flame and tells the gas valve the flame is lit. Once it wears out or sits out of position, it reads no flame even when there is one, and the gas valve shuts off. A dirty or partly blocked pilot tube can cause the same thing by making the flame too weak to hold the sensor's reading. Either way it is a repair, not something to keep relighting on your own.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairs, not replacements. The heat exchanger, the igniter and the flow sensor are the parts that fail most often, and a contractor can usually replace any of them on their own. Mineral buildup inside the unit is also common and gets cleared with a descaling flush rather than new parts. Replacement usually only comes up when the heat exchanger itself has cracked or the unit is old enough that parts are no longer made for it.