New Ontario Law Requires Carbon Monoxide Alarms on Every Storey of the Home

In a major step to enhance public safety, the Ontario Fire Code is being updated to require the installation of more extensive carbon monoxide (CO) alarms in homes. These changes, coming into force on January 1, 2026, will require property owners to ensure additional CO alarms are installed, extending detection to all storeys of residential homes and buildings.

“Since 2015 in the province and 2009 in Niagara Falls, carbon monoxide alarms have been required outside all sleeping areas in residential occupancies,” stated Fire Chief Jo Zambito. “This is the next step in increasing safety in our homes, protecting us all from the dangers of CO poisoning,” added Chief Zambito.

Carbon monoxide is notoriously difficult to detect: it’s odourless, colourless, and tasteless, yet can be deadly. The only way to detect the presence of CO is to have alarms installed, and the new fire code changes aim to provide earlier warning and broader protection for Ontario residents.

CO alarms are required in all residential buildings that contain a fuel-burning appliance (such as a gas hot water tank or furnace), an attached garage, or a fireplace. The requirements in multi-unit buildings, such as apartments, are more complex. For the full regulations, please visit the Ontario Fire Code webpage.

Failing to have carbon monoxide alarms is an offence under the Ontario Fire Code, and penalties can be significant: up to $50,000 for an individual’s first offence and $500,000 for a corporation’s first offence, underscoring the vital protection these devices provide. “While fines issued under the fire code can be significant, the tragedy of what could be lost if these alarms aren’t installed and working is far greater,” cautioned Chief Zambito.  

The Niagara Falls Fire Department urges everyone to have working CO alarms on every floor before the January 1 deadline. Homeowners must make sure their homes are compliant, while landlords are responsible for rental properties.

For more details on the changes, responsibilities, and safety tips, visit niagarafalls.ca.

For more information, please contact:
AJ Lunn
Public Education Officer
Niagara Falls Fire Department
905-356-1321 ext. 2210
[email protected]

Posted on: 12/2/2025 2:54 PM - Category: Media Releases