Water Heater Repair in Brooklyn, NY
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A long cold season wears on the tank
Water heaters in Kings County work against cold groundwater from October through April, seven months of the year. On winter nights that average 29°F, the incoming water is at its coldest right when the tank is asked to bring it up to temperature, and it does that day after day for most of the year. That steady load wears on the heating element and the thermostat, and it shows up as water that never quite gets hot enough, or runs out faster than it used to.
The county has seen 16 winter storms and 56 damaging wind events over the past ten years, the kind of weather that knocks out power. Most water heaters come back on by themselves once power returns, but if yours had a pilot light, it will need to be relit by hand.
- 29°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, 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?
- The tank itself has likely rusted through and is starting to fail. Water heaters have a steel tank with a glass liner inside, and once that liner cracks, the steel underneath corrodes until it gives way. It can also be a loose drain valve or a fitting on the bottom, which is a much smaller fix. A leak from the tank itself means the water heater needs to be replaced, not repaired, since there is no way to patch a rusted tank.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple or flame sensor, the small part that tells the gas valve the pilot is burning. When it fails, the valve shuts off gas to the pilot as a safety measure, even though the flame was fine seconds earlier. A dirty pilot orifice or a draft in the area can also blow the flame out. If relighting it works for a day and then it goes out again, the part needs to be replaced rather than the pilot relit again.
- Can a tankless water heater be repaired?
- Yes, most tankless water heater problems are repairable. The heat exchanger, igniter, flow sensor, and venting are the parts that most often need service, and a contractor can replace any of them without swapping the whole unit. Mineral buildup inside the heat exchanger is a common issue in areas with hard water and is cleared with a descaling flush rather than a replacement. A full replacement is usually only needed when the heat exchanger itself has cracked.