Water Heater Repair in Yonkers, NY
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Cold groundwater and long winters work your water heater hard
Yonkers water heaters take in cold groundwater for eight months of the year, from October through May, while winter nights average 24°F. That means the burner or heating element runs longer to hit the same temperature, and it runs that way most of the year.
The county has logged 42 winter storms and 167 damaging wind events over the past ten years, and in New York, 11% of households lost power for at least 24 hours in 2024. A gas water heater with a standing pilot will keep running through an outage. One with electric ignition will not fire back up until the power does, so you may find the water cold after the lights come back on.
- 24°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 11%
- of New York 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 $90 a year off hot water for a typical New York home.
Estimates for a typical New York home, compared with an older unit built to the federal minimum, from EIA household energy data and New York 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 it means the tank itself has rusted through and is failing. Water heaters corrode from the inside as the glass lining wears down over the years, and once the steel underneath gives way, it won't seal again. It could also be a loose drain valve or a fitting weeping from pressure, which a contractor can check before assuming the tank is done. If the leak is coming from the tank body itself, the unit 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 sensor that sits in the pilot flame and tells the gas valve it's safe 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 orifice or a draft blowing on the flame can cause the same thing. A standing pilot doesn't run on electricity, so a power outage isn't the issue here, it's almost always the thermocouple or the gas valve itself.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless unit are repairable. Common issues are a scaled-up heat exchanger from hard water, a failed igniter, or an error code pointing to a sensor or the flow switch. A contractor can flush the unit and test the parts to find out which one is causing the problem. Full replacement is usually only needed when the heat exchanger itself has cracked or corroded through.


