How Long Does a Water Heater Last?

When it comes to keeping your home or business comfortable, a reliable water heater is something you don’t think about—until it stops working. If you’ve ever wondered “how long does a water heater last?” you’re not alone. At Douglas Heating Supply, we get this question often, especially from property owners looking to avoid unexpected breakdowns.

Average Lifespan of a Water Heater

On average, a traditional tank water heater will last 8–12 years, depending on usage, water quality, and how well it’s maintained. Tankless water heaters, on the other hand, can last up to 20 years or more with proper care.

If you’ve been asking yourself, “how long does an electric water heater last?” the answer is typically about 10–15 years. However, this lifespan can be cut short without routine maintenance such as flushing the tank, replacing anode rods, or checking electrical components.

Signs Your Water Heater May Be Failing

Even if your water heater hasn’t reached the end of its expected lifespan, there are warning signs that it may need repair or replacement:

• Rusty or discolored water – could indicate corrosion inside the tank.

• Strange noises – rumbling or popping may mean sediment buildup.

• Inconsistent hot water – a failing heating element may be the culprit.

• Frequent shut-offs – if you’ve noticed “my heater keeps turning off,” it’s a clear sign of an issue that needs immediate attention.

Extending the Life of Your Water Heater

With proper maintenance, you can often extend the lifespan of your system and delay replacement. Some best practices include:

• Flushing the tank annually to prevent sediment buildup.

• Replacing worn-out anode rods to protect the tank from corrosion.

• Scheduling regular professional inspections to catch small problems early.

When to Call the Experts

If your water heater is over 10 years old or showing frequent signs of failure, it may be time to consider a replacement. Douglas Heating Supply provides expert water heater service and installation across Kalamazoo, Portage, Battle Creek, and surrounding areas.

Whether you’re dealing with lukewarm water, unexpected shut-offs, or simply want to know how long does a water heater last in your home, our team can help.

Don’t Wait for Cold Showers — Call Us Today

A failing water heater can disrupt your daily routine and lead to costly water damage if leaks occur. Contact Douglas Heating Supply today for water heater inspections, repairs, and replacement services you can count on.