How Long Does a Water Heater Last?

The lifespan of a water heater depends on the type, maintenance habits, and water quality in your area. A traditional tank water heater typically lasts between 8 and 12 years, while a tankless water heater can last 15 to 20 years or more with proper care.

Several factors affect how long your water heater will perform. Hard water, which is common throughout the Los Angeles region, causes mineral buildup inside the tank and on heating elements. This sediment reduces efficiency and accelerates wear. Flushing your tank annually and installing a water softener can significantly extend the unit's life.

Warning signs that your water heater is nearing the end of its lifespan include rusty or discolored hot water, rumbling or popping noises from sediment buildup, inconsistent water temperatures, and visible corrosion or leaks around the base of the unit. If your heater is over 10 years old and showing any of these symptoms, it is time to start planning for a replacement.

Regular maintenance is the best way to maximize your investment. A professional plumber can inspect the anode rod, flush the tank, check the pressure relief valve, and ensure all connections are secure. These simple steps can add years to your water heater's service life.

Agent Rooter provides expert water heater repair and replacement services across Greater Los Angeles. Contact us for a free assessment to determine whether repair or replacement is the right option for your home.