Water Heater Repair in Trenton, NJ
Tell us what your water heater is doing, and a licensed contractor who covers Mercer County will get in touch.
Tell us about the job
It takes about a minute.
Long winters and outages both put water heaters to the test
Homes here need heat from October through April, seven months a year, with winter nights averaging 26°F. Incoming water is coldest through those months, and a water heater has to make up more ground before it reaches the tap. You notice it as a shower that starts hot and turns lukewarm sooner than it used to, or a tank that seems to run out faster than it did in summer.
Mercer County has logged 112 damaging wind events and 14 winter storms over the past ten years, and storms like that knock out power. Statewide, 11% of households went at least 24 hours without power in 2024. A gas water heater with a standing pilot stays lit through an outage, but an electric water heater or a gas model with electronic ignition will not fire back up on its own once the power returns.
- 26°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 Jersey 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 Jersey home.
Estimates for a typical New Jersey home, compared with an older unit built to the federal minimum, from EIA household energy data and New Jersey 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 once that happens the tank has to be replaced, not repaired. It could also be the drain valve or a fitting leaking down the side of the tank and pooling at the bottom, which is a much smaller fix. Shut off the water supply to the tank and look for where the water is actually coming from before you assume the worst. A contractor can tell you in a few minutes which one you are 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 flame and tells the gas valve to stay open. When it wears out, it stops sensing the flame correctly and shuts the gas off even though the pilot lit fine. A weak or dirty pilot orifice, a draft in the area, or a failing gas valve can cause the same thing. A standing pilot doesn't use power, so if this started recently it isn't tied to an outage.
- Can a tankless water heater be repaired?
- Yes, most problems on a tankless unit are repairable. Igniters, flow sensors, heat exchangers, and error codes from mineral buildup are all things a contractor can diagnose and fix without replacing the whole unit. Tankless units also depend on regular descaling, so a repair sometimes turns into a flush of the system rather than swapping a part. How far the repair goes depends on the age of the unit and what's actually failed, which a contractor can tell you after looking at it.