Step 1 Check for Expired Smoke Alarms
In order to ensure your home is protected from a fire or carbon monoxide leak, it is important to check whether your smoke alarms or carbon monoxide detectors have expired, whether they’re battery-operated or hard-wired in. Simply remove your detectors from wherever they are (most are on the ceiling) and check the manufacturing date on the back. Smoke alarms and carbon monoxide detectors expire every ten years. A helpful visual cue is to check whether the smoke alarm itself looks yellowed, especially if you’ve just moved into a new home. If your alarms are battery-powered, change the lithium-ion batteries once a year.