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Do Smoke Detectors Expire?

PasWord Protection • Aug 29, 2024
A smoke detector attached to the a living room ceiling with furniture in the background below

You might be surprised to learn that most smoke detectors expire. Over time, their internal parts, like the smoke detector batteries, can wear out, making them less effective. An expired smoke alarm might not sound when you need it most, putting you and your family at risk.


But when do smoke detectors expire? How can you tell? In this article, we'll explore how you’ll know when your smoke alarm needs to be replaced, and cover everything else you need to know about
smoke detectors as an Ontario homeowner.

How Long Do Smoke Detectors Last?

The answer to “How long do smoke detectors last?” is usually around 10 years. It's important to remember that these devices are constantly working, even when the alarm isn’t sounding. The sensors inside are always on, monitoring the air for smoke particles. Over time, these sensors can become less sensitive or even stop working altogether.


Other components inside the smoke detector, like the battery or the alarm itself, can also degrade over time, affecting smoke detector lifespan. This can lead to false alarms, or even worse, the detector failing to sound an alarm when there's a real fire. That's why it’s important to replace your smoke detectors before they reach the end of their lifespan.


Instead of asking, “Do hardwired smoke detectors expire?” make it a habit to check the manufacture date on your smoke detectors regularly. If they're approaching or have passed the 10-year mark, it's time for a replacement. Remember, a smoke detector is only as good as its ability to function when you need it most.

A man wearing a blue T-shirt replaces a smoke alarm on the ceiling

Image Source: Canva


Signs Your Smoke Detector Lifespan is Running Out

Even if your smoke detector hasn't reached its 10-year expiration date, there are indications that it’s time for a replacement. Instead of wondering, “do smoke detectors expire?”pay attention to these warning signs:

 

  • Frequent False Alarms: If your ULC-certified smoke detector goes off regularly without any smoke or fire present, it could be a sign that the sensor is malfunctioning. Dust, insects, or other debris could interfere with the sensor.

  • No Alarm During Testing: If you test your smoke detectors monthly and the alarm doesn't sound, the unit is faulty and needs to be replaced immediately.

  • Discolouration or Damage: If the smoke detector is yellowed, cracked, or otherwise damaged, it's likely no longer reliable. Physical damage can affect the internal components and compromise its ability to properly detect smoke.

  • Chirping Sound: If you notice your hardwired smoke detector beeping, it could be a sign that the backup battery needs to be changed. If the battery has been replaced recently and the chirping continues, it could be a sign of a more serious problem with the detector.


If you notice any signs your smoke detector lifespan is about to run out, don't hesitate to replace your smoke alarm. It's a small investment for the safety that comes from
knowing your home is protected.

An inspector in a red shirt checks out a hardwired smoke detector beeping while the homeowner watches

Image source: Canva


Ontario Laws on Smoke Alarms

The Ontario government recognizes that smoke alarm systems are necessary for safe and protected homes. To ensure smoke detectors are properly deployed in Ontario, the government has passed laws concerning the responsibility of homeowners, property managers, and businesses.


The Ontario Fire Code

The Ontario Fire Code establishes clear and specific regulations governing the installation and upkeep of interconnected smoke alarms in all residences. The Fire Code outlines several key provisions regarding smoke alarms:

  • Every Storey: Each level of your home, including basements and attics, must have a working smoke alarm installed. This ensures comprehensive coverage throughout your property.

  • Sleeping Areas: It’s required to install smoke alarms outside all sleeping areas to provide early warning in case of a fire during the night when occupants are most vulnerable.

 

  • Homeowner Responsibility: As a homeowner, you are legally responsible for ensuring all smoke alarms in your home are functional. This includes regular testing, battery replacement, and timely replacement of the entire unit when the end of the smoke detector lifespan is reached.

  • Landlord Responsibility: Landlords are legally obligated to ensure their rental units are equipped with operational smoke alarms at the start of each new tenancy. They must replace smoke detectors when they reach their expiration date.

  • Tenant Responsibility: Tenants must promptly inform their landlord of malfunctioning smoke alarms and replace batteries as needed, especially if they hear the smoke detector chirping without battery issues.


Penalties for Non-Compliance

Failure to comply with these regulations, especially when it comes to smoke alarm placement and smoke detector lifespan, can lead to serious consequences. In addition to fines and potential legal action, non-compliance puts lives at risk. In the event of a fire, a non-functional or absent smoke alarm significantly increases the risk of injury or fatality.

Prioritize Fire Safety with PasWord Protection

"Do smoke detectors expire?" is a crucial question every homeowner should ask. With PasWord Protection, you don't have to worry about the answer. We understand the importance of fire safety and offer comprehensive solutions to protect your home and loved ones.


Our monitored security systems include ULC-certified smoke detectors, ensuring the highest reliability and responsiveness. In the event of a fire, our 24/7 monitoring center will immediately dispatch emergency services, even if you're not home.


Don't wait to protect your home!
Contact PasWord Protection today to make a safer home for you and your family.




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