Water Heater Repair in Concord, NH
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Merrimack County winters push your water heater hard
Cold groundwater in December through February means your water heater works harder to hit the same temperature at the tap. It runs longer to do it, and that extra runtime wears on the heating element or burner assembly faster than it would in a milder season.
Merrimack County has seen 35 winter storms and 79 damaging wind events over the past ten years, and statewide, 22% of households lost power for at least 24 hours in 2024. An electric water heater does nothing until power is back. A gas water heater with a standing pilot keeps working right through an outage, but one with an electronic ignition will not restart until it has power again. If your water heater has been struggling and the power just went out, that combination is often what finally brings it down.
- 14°F
- the average winter night, and colder incoming water means longer heating
- 9 months
- September through May, the months homes here need heat
- 22%
- of New Hampshire 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
- Why is my water heater leaking from the bottom?
- Most bottom leaks come from the tank itself failing on the inside, and once that happens the tank needs to be replaced, not repaired. Sediment builds up in the bottom of the tank over the years, and it wears through the steel from the inside out. A drain valve that isn't seated right can also leak from the bottom, and that part can be replaced. A contractor can tell you which one you're dealing with by looking at where the water is actually coming from.
- Why won't the pilot light on my water heater stay lit?
- Most of the time this means the thermocouple has worn out and can no longer sense that the pilot is lit, so the gas valve shuts it off. A weak or dirty pilot flame can cause the same thing, and so can a draft in the area where the water heater sits. A standing pilot doesn't use any electricity, so a power outage isn't the cause. If the flame keeps going out after you relight it, the thermocouple is the most likely part to replace.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairs, not replacements. Mineral buildup on the heat exchanger is the most common issue, and it's cleared with a descaling flush rather than a new unit. Igniter and sensor failures are also common and are straightforward to replace. A contractor will need to see the error code on the unit's display to know exactly what's wrong.