How Often Should I Replace Smoke Detectors?

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Do you really need to replace smoke detectors every 10 years?

Smoke alarm lifespans can vary, but according to the association, smoke alarms need to be replaced at least every 10 years. According to Carli, that lack of awareness means some U.S. homes may have smoke alarms that have passed their expiration dates, putting people at increased risk in the event of a home fire.

How long do hard wired smoke detectors last?

Most smoke alarms have a lifespan of eight to 10 years, and again, replace the batteries every year. A smoke detector with a lithium battery or a hard-wired smoke detector can last 10 years, at which time you would just replace the whole unit. Carbon monoxide detectors last between five and seven years.

Do Smoke detectors wear out?

Smoke Alarms Eventually Expire

Just like that milk sitting in your fridge, smoke alarms go bad after a while. The National Fire Protection Association recommends that you replace your smoke alarms every ten years. This is because the sensors eventually degrade in quality to the point where they’re no longer effective.

Do I need an electrician to replace hardwired smoke detectors?

They are hard-wired into our electrical system, but that doesn’t mean you need an electrician to replace them. Modern hard-wired smoke detectors don’t have wires in the back that need to be connected to loose wires in the ceiling.