Most homeowners know they should have smoke and carbon monoxide detectors. Fewer know that those detectors have a lifespan — and that an aging detector that still beeps when tested may not actually be able to detect a real emergency. When a family in Lebanon, PA called us to help update their detector system, it was a conversation worth having, and one we are glad to have with any homeowner who is unsure of where they stand.
The Problem With Aging Detectors
Smoke detectors are designed to be replaced every ten years. Carbon monoxide detectors have a shorter lifespan — typically five to seven years. The manufacture date is stamped on the back of the unit. Even if a detector sounds when you press the test button, that test only checks the horn and battery, not the sensing chamber. Over time, the sensing components degrade and may not respond the way they should when it matters most.
This family’s detectors were well past their service life. Some were battery-only units that had been in place since the home was built.
What We Installed
We installed hardwired combination smoke and carbon monoxide detectors with battery backup throughout the home, positioned according to current code requirements: on every level, in each hallway outside sleeping areas, and inside the bedrooms. Hardwired detectors run continuously on household power and — importantly — they are interconnected, so when one alarm sounds, they all sound. That gives every person in the home the earliest possible warning regardless of where they are.
A Simple Investment in Peace of Mind
Detector replacement is one of the more straightforward electrical services we offer, and one of the most meaningful. It is easy to defer when there are no obvious symptoms, but the whole point of a detector is that you need it to work in a moment when there is no time to find out it does not. We are glad to help homeowners get this right.
If you are not sure when your detectors were installed or whether they are past their service life, give us a call at (717) 287-4008. We are honored to serve and ready to help.
Frequently Asked Questions
How often should smoke and carbon monoxide detectors be replaced?
Smoke detectors should be replaced every 10 years, and CO detectors every 5–7 years. The manufacture date is stamped on the back. Even if a detector still beeps when tested, its sensing chamber degrades over time and may not detect a real emergency.
Should smoke detectors be hardwired or battery-powered?
Hardwired detectors with battery backup are the safest option. They run continuously from household power and interconnect so all alarms sound when one detects smoke. Battery-only units can fail silently if the battery dies and is not replaced.
Where should carbon monoxide detectors be placed in a home?
CO detectors should be installed on every level of the home, including inside or directly outside each sleeping area. They should be placed at knee height or lower, since CO disperses evenly but can accumulate near floor level in some scenarios.
Leave a Reply