Water Heater Repair in Columbia, MD
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Howard County winters put a real strain on your water heater
Groundwater coming into your house is coldest from December through February, when nights here average 26°F. Your water heater has to work harder to bring it up to temperature, and it runs longer to do it. That extra runtime wears on the heating element in an electric unit and the burner assembly in a gas one.
Power outages add another problem. Maryland households went without power for 24 hours or more in 2024, and Howard County has logged 22 winter storms and 177 damaging wind events over the past ten years. A gas water heater with a standing pilot keeps working through an outage, but most newer units need electricity to ignite and won't fire back up on their own once the power returns. If your water goes cold during or right after a storm, that is often why.
- 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 Maryland 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 $370 a year off hot water for a typical Maryland home.
Estimates for a typical Maryland home, compared with an older unit built to the federal minimum, from EIA household energy data and Maryland 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. That means the water heater needs to be replaced, not patched. Water can also pool at the bottom for other reasons. A loose drain valve, a failed temperature and pressure relief valve, or condensation dripping down from fittings above can all look the same at first. A contractor can tell the difference by drying everything off and watching where the water shows up first. If it's coming from the tank itself, that leak will only get worse.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple. That's the small sensor that tells the gas valve the pilot is burning. When it wears out, it shuts the gas off even though the flame is lit. A dirty pilot orifice or a draft blowing across the flame can cause the same thing. A failing gas control valve can too. A contractor can test the thermocouple's output in a few minutes and know which part is at fault.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable. Mineral buildup on the heat exchanger is common and is cleared by flushing the unit, especially where water is hard. Ignition failures, sensor errors, and blocked venting are also common repairs. A contractor can read the unit's error code, which usually points straight to the failed part.