Ontime Electric provides smoke and carbon monoxide (CO) alarm solutions for homes and businesses in Toronto and the GTA. With over 20 years of experience, our licensed electricians help improve safety from fire and carbon monoxide hazards through proper alarm placement, installation, testing, replacement, maintenance, and code-compliant service.

Carbon Monoxide Detector Installation

CO is a silent killer — invisible, tasteless and odorless, yet highly dangerous if it goes undetected. If you have a fireplace, furnace, barbecue, attached garage, or other fuel-burning appliance, having a detector is essential.

We provide:

  • Custom CO alarm placement to cover all critical areas
  • Certified CSA/ULC CO detectors for reliable protection
  • Regular testing and maintenance to ensure proper operation
  • Expert guidance on fuel-burning appliances to minimize carbon monoxide risks
Carbon Monoxide Alarms Installation

With our professional setup, ongoing service, and certified carbon monoxide alarms, you can rely on your Smoke & CO detection system for complete home protection.

Smoke Detector Installation

In the event of a fire, every second counts. Properly placed smoke alarms are vital for your safety. Our team installs detectors on all levels of your home and outside bedrooms to give you the earliest possible warning. We recommend hardwired smoke alarms with battery backup, one of the most effective ways to protect your family and property. Regular checks are also important to ensure your alarms are working as intended.

Signs your smoke alarm may need inspection or replacement:

  • Light indicator not working
  • Intermittent beeping or chirping
  • Old or outdated detectors
Smoke Detector Installation Contractor

Replace batteries as needed, or contact Ontime Electric for inspection, testing, or replacement services.

Ontario Carbon Monoxide Detector Law

Smoke Detector Installation Services Toronto

In Toronto and across the GTA, the law requires smoke and CO protection in homes with fuel-burning appliances, fireplaces, or attached garages. For condos and apartment buildings, alarms are also required in service rooms and in suites located next to those rooms.

Key requirements under the Ontario Fire Code (effective Jan 1, 2026 – City of Toronto ):

  • Installed on every storey of the home
  • Placed outside all sleeping areas
  • Carbon monoxide detectors where fuel-burning systems are present
  • Must meet CSA/ULC standards

Annual inspections of fuel-burning appliances and vents by a qualified contractor are recommended. We ensure your smoke and CO alarms are properly placed in full compliance with Ontario Fire Code requirements, giving you reliable protection and peace of mind.

Combo Smoke & Carbon Monoxide Alarms

For complete protection and convenience, consider combo Smoke & CO alarms. These units detect both fire & CO, can link with other alarms, and are CSA/ULC-certified.

Benefits:

  • Alerts for both fire and carbon monoxide (CO)
  • Simplified testing and maintenance
  • Protection for homes, condominiums, apartments, and commercial properties
Combo smoke & carbon monoxide alarms

Why Ontime Electric is Your Best Choice

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Licensed & Insured: Bonded, ESA-authorized experts for your peace of mind.

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Transparent Pricing: No hidden charges or overtime fees.

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 Fast Response: Prompt service with minimal disruption.

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Careful, code-compliant workmanship guaranteed

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Compliance with the Latest Ontario Fire Code

Areas We Serve

Ontime Electric installs, replaces, tests, and services smoke & CO detectors across Toronto and the GTA, including:

  • Toronto
  • Ajax
  • Aurora
  • Etobicoke
  • King City
  • Markham
  • Mississauga
  • Newmarket
  • North York
  • Pickering
  • Richmond Hill
  • Scarborough
  • Stouffville
  • Thornhill
  • Vaughan
  • Whitby
  • Woodbridge

Protect Your Family with Smoke & CO Detectors

Our team assesses your property, identifies potential fire and carbon monoxide risks, and recommends the most appropriate smoke and CO alarm locations. We provide installation, testing, replacement, and maintenance services to help keep your property protected and compliant.

Smoke & Carbon Monoxide Alarm FAQs

What is the difference between a smoke alarm and a carbon monoxide alarm?

Smoke alarms detect smoke and provide early warning of a fire. Carbon monoxide alarms detect dangerous carbon monoxide gas, which is invisible, odorless, and potentially deadly. Many homeowners choose combo smoke and carbon monoxide alarms for comprehensive protection.

Where do I install smoke and CO detectors?

Install smoke alarms on every floor and outside bedrooms. Place carbon monoxide alarms near sleeping areas and on levels with fuel-burning appliances or attached garages. Ontime Electric ensures correct placement for full protection. Learn more about where to install carbon monoxide detectors for the best protection.

Are smoke & CO alarms mandatory in Toronto homes?

Yes. Ontario Fire Code and local safety regulations require compliant detectors in specified locations for houses, condos, apartments, and many commercial properties.

How many carbon monoxide detectors do I need?

At minimum, one per floor and near each sleeping area. You may need additional detectors for large homes or multiple fuel-burning appliances.

How often should I test smoke and CO detectors?

Test smoke and carbon monoxide alarms monthly and replace batteries as needed. Most smoke detectors should be replaced every 10 years, while carbon monoxide alarms typically last 7–10 years depending on the manufacturer.

What should I do if an alarm goes off?

For carbon monoxide (CO): Evacuate immediately and call 911.
For smoke: Exit safely and contact Toronto fire services.

Do condos and apartments in Toronto require CO alarms?

Yes. Install them in service rooms and in suites adjacent to those rooms, in addition to standard sleeping-area coverage.

Do you provide maintenance and service after installation?

Yes. We provide inspection, testing, replacement, and maintenance services to help keep your alarms working properly.

What are combo Smoke & CO alarms, and are they a good option?

Combo units detect smoke and carbon monoxide, are CSA/ULC certified, and simplify testing and maintenance. Many models link multiple alarms so that if one detects a hazard, all sound—giving early warning throughout your home.

My smoke alarm keeps chirping. What does that mean?

A chirping smoke alarm often indicates a low battery, dust buildup, a malfunction, or an end-of-life warning. If replacing the battery does not resolve the issue, the alarm may require inspection or replacement. Ontime Electric can inspect your smoke alarms and recommend the appropriate solution.