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About lighting & pot lightsSmoke & CO Detectors
Protect your family with properly installed hardwired smoke and carbon monoxide detectors. Ontario law requires working detectors on every floor.
Scope of work
- Hardwired interconnected smoke detectors
- Combination smoke/CO units
- Battery backup models
- Placement per Ontario Fire Code
- Detector testing and replacement
- 10-year lifespan monitoring
Ontario Fire Code requires a working smoke alarm on every storey and outside all sleeping areas. CO detectors are required if you have fuel-burning appliances or an attached garage. Hardwired interconnected detectors provide the highest level of safety — when one goes off, they all sound. We install them with battery backup so they work even during power outages. Detectors should be replaced every 10 years.
Smoke & CO Detectors FAQs
Are hardwired smoke detectors required in Ontario?
The Ontario Fire Code requires working smoke alarms on every storey and outside sleeping areas. Homes built after 1986 must have hardwired units, and renovations typically trigger the hardwired interconnected requirement. CO alarms are required near bedrooms if you have fuel-burning appliances or an attached garage.
How often should smoke detectors be replaced?
Every 10 years — the sensors degrade even if the unit still chirps on test. The manufacture date is printed on the back of the unit. We replace expired detectors with combination smoke/CO units that have battery backup, typically $90–$150 per unit installed.
Why does my smoke detector chirp even after changing the battery?
Persistent chirping usually means the unit has reached end-of-life, has a wiring fault on the interconnect circuit, or dust in the sensor. If a new battery doesn't fix it within a minute, the detector should be replaced — we can swap all units in a visit.
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Wiring & Rewiring
Whether you're building new or renovating, we provide complete electrical wiring services that meet or exceed the Ontario Electrical Safety Code.
About wiring & rewiringNeed smoke & co detectors?
Free estimates on all projects. Same-day service available across the GTA. Send the details and a licensed electrician replies the same day.
Or call 416-837-4038Free written quote
Free quote: Smoke & CO Detectors
Tell us about the job and we reply the same day. For an emergency, call 416-837-4038 instead.
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