Tank Water HeaterReplacement2025-08-26
How Long Does a Water Heater Last?
Most tank water heaters last 8–12 years — maintenance and water quality make the difference.
Knowing your water heater's expected lifespan helps you plan a replacement before it fails and floods.
Typical lifespan
Tank water heaters generally last 8–12 years. Hard water, high sediment, and skipped maintenance shorten it; regular flushing and a fresh anode rod extend it.
When to replace proactively
Past 10 years, with rusty water, rumbling, or minor leaks, plan a replacement on your schedule rather than risking a sudden tank failure and water damage.
Key takeaways
- Expect 8–12 years from a tank heater
- Flush yearly and check the anode rod
- Rusty water and rumbling are end-of-life signs
- Replace proactively to avoid flooding
Need help with your tank water heater?
Licensed, gas-certified technicians serving Greater Vancouver since 1999. CombiBoiler.ca — A division of ROMA Heating Ltd..
Frequently asked questions
More Tank Water Heater articles
Water Heater Leaking: Causes and Emergency StepsA leaking tank water heater can flood quickly — know how to shut it off and what the source means.No Hot Water from Your Tank HeaterNo hot water can be a pilot/igniter, thermostat, or heating element issue depending on gas or electric.Water Heater Leaking from the Bottom: Tank FailureWater pooling under the tank usually means internal corrosion — and time for replacement.Water Heater Leaking from the Top: Fittings and ValvesTop leaks are usually loose connections, the T&P valve, or the inlet/outlet — often repairable.Water Heater T&P Valve Leaking ExplainedA dripping temperature & pressure valve can be normal thermal expansion — or a sign of a real problem.Water Heater Replacement Cost in BCWhat a new tank water heater costs installed in BC, and what affects the price.
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