Maintenance
March 5, 2026

Six Signs Your Water Heater Is About to Fail

Most water heaters give plenty of warning before they go. Here's what to look and listen for so you're not caught with a flooded utility closet.

Water heaters rarely fail without warning. The problem is most homeowners don't know what the warnings sound or look like — until they're standing in two inches of water at six in the morning. If you catch the signs early, you usually have weeks or even months to plan a replacement instead of scrambling.

1. The water isn't as hot as it used to be

If your showers run out of hot water faster than they used to, sediment is building up at the bottom of the tank and reducing capacity. A flush may help; on older units, it's a sign the tank is nearing end of life.

2. Rumbling or popping sounds

That sound is water trapped under a thick layer of sediment, boiling and pushing through. It stresses the tank walls and accelerates failure.

3. Rusty or discolored hot water

If only the hot water is discolored, the inside of the tank is corroding. Once corrosion is visible in the water, replacement is usually weeks away.

4. Water around the base of the tank

Any moisture pooling at the bottom is a serious sign. It can be a fitting (cheap fix) or the tank itself (replacement). Either way, call a plumber.

5. Age over 10 years

Tank water heaters typically last 8 to 12 years. If yours is past 10, you're on borrowed time even if it seems fine.

6. Higher utility bills with no other explanation

A failing water heater works harder to produce the same hot water, which shows up on your gas or electric bill before it shows up anywhere else.

If any of these sound familiar, give us a call. Replacing on your timeline is always cheaper than replacing in an emergency.

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