Water Heater Repair in Durham, NC
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What Durham winters do to a water heater
Your water heater works harder from October through April, when the water coming into the tank is coldest. On nights that average 31°F, that tank has to make up more ground just to keep the water at temperature, and it does that seven months of the year.
Durham County has seen 104 damaging wind events and 7 winter storms over the past ten years, and across North Carolina a quarter of households lost power for at least 24 hours in 2024. When power drops and comes back, most electric water heaters recover on their own, but a gas unit with an electronic igniter may need someone to relight it. If your water is taking longer to heat or isn't heating at all after an outage, that is often where to look.
- 31°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 25%
- of North Carolina 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 $300 a year off hot water for a typical North Carolina home.
Estimates for a typical North Carolina home, compared with an older unit built to the federal minimum, from EIA household energy data and North Carolina 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 started to fail. Water heaters corrode from the inside over years, and once the tank wall gives way, water finds the lowest point and drips out the bottom. It can also be the drain valve or a loose fitting rather than the tank, which is worth checking first since those can sometimes be tightened or replaced. If the tank itself is leaking, the water heater needs to be replaced, not repaired.
- Why won't the pilot light on my water heater stay lit?
- The thermocouple has likely worn out. This is the small sensor that sits in the pilot flame and tells the gas valve it is safe to keep the gas flowing. When it wears out or gets coated in soot, it stops sensing the flame correctly and shuts the gas off, even though the pilot lit just fine a moment ago. A dirty pilot orifice or a draft blowing the flame out can cause the same problem, so a contractor will check both before replacing the thermocouple.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater can be fixed without replacing the whole unit. Common repairs include cleaning mineral scale out of the heat exchanger, replacing a failed igniter, or clearing a blocked vent. Since Durham winters bring nights averaging around 31 degrees from December through February, a tankless unit works harder to bring incoming water up to temperature, and that added strain is often what brings a developing problem to the surface. A contractor can diagnose the specific fault code or symptom and tell you whether a part needs replacing.