It’s time to change your clocks this weekend, which means it’s also time to change the batteries in your smoke alarms.

Fire and toxic smoke spread quickly so early warning is vital. Make sure you have working smoke alarms on every level of your home smoke - it could save your life!


“This weekend, when you change your clocks, be sure to test your smoke alarms & follow manufacturers' instructions on battery replacement. Not all smoke alarms are designed the same. If you no longer have a clock to change, you can set a reminder on your phone.” - Shelley Langer, Fire Prevention Inspector, Town of Ajax   

Quick Facts

  • Every home in Ontario is required to have a working smoke alarm on every storey, as well as outside all sleeping areas.
  • Change smoke alarm batteries twice annually.
  • Test smoke alarms monthly.
  • Smoke alarms should be cleaned every six months. Open the cover and gently vacuum the interior of the device. Be sure to keep the vacuum nozzle from touching the unit.
  • Smoke alarms don’t last forever. Replace units that are over 10 years old.
  • Smoke alarms can’t protect you if the batteries have been removed, or a plug has been disconnected.

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