What Are Signs Your Water Heater Is Going Bad?

Quick Answer: The most common signs include rusty or discolored water, rumbling or popping noises, water that won't get hot enough, visible leaks around the tank, and a unit that's over 10 years old.

Warning Signs to Watch For

If you notice any of the following, your water heater may be nearing the end of its life:

1. Rusty or Discolored Water

Brown or rusty water coming from your hot water tap usually means corrosion inside the tank. If the cold water runs clear but hot water is discolored, the tank itself is likely rusting from the inside out.

2. Strange Noises

Rumbling, popping, or banging sounds happen when sediment builds up at the bottom of the tank. The sediment hardens over time and makes the unit work harder, which shortens its lifespan.

3. Water Doesn't Get Hot Enough

If you're running out of hot water faster than usual, or the water never gets as hot as it should, the heating element or thermostat may be failing.

4. Leaks Around the Tank

Any pooling water around the base of your water heater is a serious warning sign. Small leaks often turn into major failures. If you see water, don't wait—call a plumber.

5. Age of the Unit

Most tank water heaters last 8-12 years. If yours is approaching that range and showing any other symptoms, replacement is usually more cost-effective than repair.

6. Higher Energy Bills

A failing water heater has to work harder to heat the same amount of water. If your gas or electric bill has increased without explanation, your water heater could be the cause.

When to Call a Professional

If you notice one or more of these signs, it's worth having a plumber inspect the unit. Some issues—like sediment buildup—can be addressed with maintenance. Others, like a corroded tank, mean it's time for a replacement.

Catching problems early can prevent a sudden failure that leaves you without hot water (or worse, with water damage from a burst tank).

Concerned about your water heater? Warren Brothers Plumbing serves Bastrop, Austin, Elgin, and surrounding Central Texas communities. Contact us today for a water heater inspection or replacement estimate.