How Long Does a Water Heater Last?

Typical ranges

• Gas tank heaters: often around 10 to 15 years.
• Electric tank heaters: similar or slightly longer, because there is no burner.
• Tankless units: commonly 15 to 20 years or more with regular descaling.

These are typical, not guaranteed. Hardness of the water, how much hot water your household uses and whether the tank has ever been flushed all matter.

Finding the age

Look for the data sticker on the tank jacket with its model and serial numbers. Most makers code the build date into the serial; for example, the first digits or letters often represent the year. Look up the maker's format, or take a photo and tell us the numbers when you call. Rental heaters may also have a sticker from the rental company.

Warning signs

1. Brownish hot water even though the cold looks fine.
2. Rumbling or popping as the burner runs, from sediment in the bottom.
3. Puddles at the base, or a drip from the pipe below the pressure relief valve.
4. Hot water running out faster than it used to.
5. Corrosion on fittings at the top of the tank.

Rental or owned

Rental tanks are common in Brampton. If yours is one, the rental company handles replacement, though terms vary; check your agreement before calling anyone. An owned tank leaves the choice of model and contractor to you.

Planning ahead

If your tank is near the top of its range, plan before it fails. Read gas water heater replacement and our guide on tank versus tankless to decide what comes next.

Ready when you are. One call, a real plumber, an arrival window.