Water Heater Repair in Round Rock, TX
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Round Rock water heaters deal with cold snaps and outages, not just wear
Winter nights in Williamson County average 40°F from December through February, and the cold snaps that come with a Texas winter storm push well past that. A gas water heater's pilot or igniter still has to fire in that cold, and a tank that's already struggling shows it first thing in the morning when the water never gets hot.
Power matters too. A third of Texas households went at least 24 hours without power in 2024, and the county has seen 10 winter storms and 58 damaging wind events over the past ten years. When the power drops, an electric water heater stops heating, and most units need that power back before they'll fire up again on their own.
- 40°F
- the average winter night, and colder incoming water means longer heating
- 5 months
- November through March, the months homes here need heat
- 33%
- of Texas 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 $290 a year off hot water for a typical Texas home.
Estimates for a typical Texas home, compared with an older unit built to the federal minimum, from EIA household energy data and Texas 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 it means the tank itself has rusted through and is failing from the inside. That kind of leak won't seal or patch, since the corrosion happens on the inside wall of the tank where you can't reach it. It could also be a loose drain valve or a failed pressure relief valve, both of which a contractor can check in minutes without replacing anything. Either way, shut off the water supply to the tank and the power or gas to the unit until someone looks at it, since standing water near the electrical connections or burner is a real risk.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple, the small sensor that tells the gas valve the pilot is actually burning. When it wears out it stops sensing the flame and the valve shuts the gas off as a safety measure, even though the pilot lit fine a second ago. A dirty pilot orifice or a draft in the area can also blow the flame out. A contractor can test the thermocouple and replace it directly, and if the pilot still won't hold after that, the gas valve itself may be the problem.
- Can a tankless water heater be repaired?
- Yes, most tankless problems are repairable. Mineral buildup on the heat exchanger is the most common issue, especially if the unit has never been flushed, and that's a straightforward service call. Igniter failures, sensor errors, and blocked intake or exhaust vents are also things a contractor can fix without replacing the unit. Full replacement usually only comes up when the heat exchanger itself has failed or the unit is old enough that parts are no longer made for it.