A stainless steel faucet pours a stream of hot water surrounded by rising steam.

Water Heater Repair in Lebanon, NH

Tell us what your water heater is doing, and a licensed contractor who covers Grafton County will get in touch.

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Step 1 of 3: Equipment
Hot water pours from an antique brass faucet into a steam-filled bathtub.

Cold groundwater and long winters wear on a water heater here

Lebanon needs heat nine months of the year, and the water coming into your tank is just as cold as the air outside. On the nights that average 10°F from December through February, your water heater works harder and longer to bring that water up to temperature. The burner or heating element runs more, and the tank cycles more often than it would somewhere milder.

That extra work shows up in the parts that do it. Elements burn out sooner. Thermostats and igniters wear from the added cycling. And when a storm takes the power out, which happens often enough here that 22% of New Hampshire households lost power for a day or more in 2024, an electric water heater stops making hot water until service comes back. You will notice it first as water that will not get hot, or takes longer to, or runs out faster than it used to.

10°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
Isometric cutaway illustration of a small single-story house showing interior rooms with a bathtub, sink, sofa and bed, and a cylindrical water heater with connected pipes and a tall flue extending through the roof.
Your water heater works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

Why is my water heater leaking from the bottom?
The tank itself has likely rusted through and is leaking from the inside out. Water heater tanks are lined, but once that lining fails, the steel underneath corrodes and eventually a pinhole or crack lets water seep out the bottom. It can also be a loose drain valve or a failed fitting, which a contractor can check before assuming the tank is done for. A tank leaking from the bottom from corrosion cannot be repaired and needs to be replaced.
Why won't the pilot light on my water heater stay lit?
A weak or dirty thermocouple is the most common reason a pilot light won't stay lit. The thermocouple senses the pilot flame and signals the gas valve to stay open. If it is dirty, out of position, or wearing out, it tells the valve the pilot is out even when it isn't, and the valve shuts the gas off. A draft blowing out the flame or a clogged pilot orifice can cause the same symptom, so a contractor will check the thermocouple along with the draft and the orifice before replacing anything.
Can a tankless water heater be repaired?
Yes, most tankless water heater problems are repairable. A failed igniter, a clogged inlet filter, mineral buildup on the heat exchanger, or a bad sensor can usually be fixed without replacing the unit. Tankless units also give error codes that point a contractor straight to the problem, which makes diagnosis more direct than with a tank.