A water heater doesn't always fail dramatically. Often it's small signs that add up. Here are the ones worth your attention — and the ones that can still be repaired.
Signs replacement is usually wiser
- Rust or corrosion at the base of the tank (structural leak: you don't “fix” the vessel)
- A leak that returns after a temporary patch
- A unit 10–12+ years old, especially if insurance coverage tightens
- Running out of hot water more often despite a correct thermostat
When repair can still make sense
- Burned heating element on a still-young tank
- Faulty thermostat
- Breaker or electrical connection to redo (with an electrician if needed)
- Relief valve dripping while the tank is sound — sometimes a part or adjustment
Simple rule: the older the unit and the closer repair cost gets to a new warranted heater, the clearer replacement becomes.
Noise and smells
Light popping or crackling often comes from sediment at the bottom. Not always urgent, but on an old unit it can ride along with end of life. Gas smell or abnormal flame (gas unit): leave, shut gas if you can, and call right away.
What to do next
- Note the age (label) and photograph visible signs.
- If leaking: close cold water and the breaker, then call.
- Ask for an honest diagnosis: repair when worth it, replace when safer.
Chauffe-eau SOS: diagnosis and install 7 days a week — 514 387-1434.