Water Heater Repair in Jefferson City, MO
Tell us what your water heater is doing, and a licensed contractor who covers Cole County will get in touch.
Tell us about the job
It takes about a minute.
Cole County winters put your water heater to work
Your water heater runs harder from October through April, seven months of the year, when incoming water is colder and stays colder longer. On nights that average 25°F, it takes more energy and more time to bring a tank up to temperature, and the heating element or gas burner cycles more to keep up.
Missouri sees its share of power loss. Statewide, 19% of households were without power for at least 24 hours in 2024, and Cole County has logged 21 damaging wind events and 4 winter storms over the past ten years. An electric water heater will not fire back up on its own until power returns, so a storm that knocks out power for a day can leave you with a tank of cold water even after the lights come back on.
- 25°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 19%
- of Missouri 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 $270 a year off hot water for a typical Missouri home.
Estimates for a typical Missouri home, compared with an older unit built to the federal minimum, from EIA household energy data and Missouri 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 often the tank itself has rusted through and is failing, which means it needs to be replaced, not patched. Sediment builds up in the bottom of the tank over years, and once it eats through the steel, water finds its way out. The other cause worth ruling out is the drain valve or a fitting nearby, which can weep without meaning the tank is bad. A contractor can tell the difference quickly by drying the area and watching where the water actually comes from.
- Why won't the pilot light on my water heater stay lit?
- The thermocouple or flame sensor is usually the reason. That part senses the pilot flame and tells the gas valve to stay open. Once it wears out or sits out of position, the valve shuts the gas off as a safety measure even though the pilot lit for a second. A dirty pilot tube or a draft blowing on the flame can cause the same thing, so a contractor will check both before replacing anything.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless unit are repairable. The heat exchanger can scale up with mineral deposits, the igniter can fail, or a sensor can go bad, and all of those are parts a contractor can service or replace. Whether it makes sense to repair or replace comes down to the unit's age and what's actually failed, which a contractor can tell you after looking at it.