Water Heater Repair in Brockton, MA
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Eight months of hard use, and winters that push the grid
Your water heater works through eight months of heating season here, October to May, and it doesn't get a break the rest of the year like your furnace does. It runs every day, all year, and Brockton winters make it work harder. When the incoming water is cold for months at a time, the tank cycles more to keep up, and that extra cycling wears on the heating element or burner assembly.
Winter storms bring another problem. Plymouth County has seen 61 winter storms and 346 damaging wind events over the past ten years, and statewide, one in ten households lost power for at least a day in 2024. A gas water heater with a standing pilot keeps working through an outage. One with electronic ignition or an electric unit does not, and it needs to be relit or reset once the power is back.
- 23°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 10%
- of Massachusetts 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 $130 a year off hot water for a typical Massachusetts home.
Estimates for a typical Massachusetts home, compared with an older unit built to the federal minimum, from EIA household energy data and Massachusetts 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 means the tank needs to be replaced, not patched. The tank holds water for years, and once it starts to corrode from the inside, the leak will only get worse. It's worth checking first that the leak isn't coming from a fitting, the drain valve, or the temperature and pressure relief valve instead, since those can sometimes be tightened or replaced without touching the tank. A contractor can tell you which one you're dealing with.
- 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 it's safe to keep the gas flowing. When it wears out, it can't hold that signal, so the gas shuts off and the flame goes out. A dirty pilot orifice or a draft blowing across the flame can cause the same thing. A standing pilot doesn't run on electricity, so a power outage won't affect it, but a bad thermocouple will need to be replaced by a contractor either way.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable rather than a reason to replace the unit. The heat exchanger, the igniter, and the flow sensor are the parts that most often need attention, and a contractor can replace any of them individually. Mineral buildup inside the heat exchanger is common too, especially in areas with harder water, and that's usually cleared with a descaling flush rather than a new part. Replacement is usually only needed when the heat exchanger itself has cracked.


