Ontario's 2026 Fire Code Changed. Is Your Property Compliant?
Carbon monoxide alarm requirements expanded January 1, 2026. Fines up to $500,000 for non-compliant buildings. First National Fire Protection installs certified CO alarms across the GTA — same week.
The Silent Killer in Your Building
Carbon monoxide is colourless, odourless, and tasteless — completely undetectable without a working carbon monoxide alarm. Over 65% of CO injuries and deaths in Ontario occur in homes, most while occupants are asleep. A properly installed CO alarm in Toronto homes, rentals, and commercial buildings is the only legally recognized warning system. Under the updated CO alarm Ontario rules, every qualifying property must now be equipped on every storey.
Does the 2026 Law Apply to Your Property?
Tick everything that applies — we'll tell you instantly if you're affected.
The New Rules, Explained
The 2026 Fire Code CO alarm requirements affect nearly every type of property in Ontario.
Every Floor Now Requires a CO Alarm
Previously only near bedrooms. Now required on every storey including basements and floors without bedrooms.
Applies to ALL Existing Homes
Not just new builds. Every existing home, rental, condo, townhouse, and cottage that meets the conditions must comply immediately.
Landlords Are Legally Responsible
In rental properties the landlord must install and maintain alarms. Tenants cannot be held responsible.
Condo Corporations Must Comply
Common areas, corridors, and service rooms all require CO alarms where fuel-burning equipment is present.
Commercial & Industrial Buildings Included
Any commercial property with fuel-burning equipment, boilers, or attached parking must comply.
Alarms Must Be CSA Certified
Cheap uncertified alarms do not satisfy the Fire Code. Only approved equipment is legally compliant.
The Cost of Non-Compliance
Minimum fine for individual homeowners
Maximum fine for individual property owners and directors
Maximum fine for corporations on first offence
Municipalities can now issue on-the-spot Administrative Monetary Penalty tickets — no court date required.
First National Fire Protection Installs Everything You Need — Fast
CO alarm installation across the GTA — residential, commercial, and industrial.
Battery & Plug-In CO Alarms
Fastest, most affordable. Installed same day. No electrical work required. Ideal for homes, rentals, and small commercial.
Book NowHardwired Combination Smoke/CO Alarms
Permanent, interconnected solution. Fully certified. Ideal for multi-unit buildings and commercial properties.
Book NowFull Compliance Assessment
We inspect your property, identify every location requiring a CO alarm, provide a written compliance report, and install everything in one visit.
Book NowNeed full-service fire protection? Explore all our services →
2026 Ontario CO Alarm Compliance Checklist
Use this checklist to identify every location in your property that requires a CO alarm under Ontario's updated Fire Code. Used by property managers across the GTA.
Why Toronto Property Owners Choose First National Fire Protection
Same-week installation across the GTA
certified equipment only — no cheap off-brand alarms
Written compliance report with every installation
Licensed, insured, background-checked technicians
CO Alarm Toronto — FAQ
Answers to the most common questions about Ontario's 2026 Fire Code.
Don't Wait for an Inspection Notice.
Book your free CO alarm compliance assessment today. We serve all of Toronto, Mississauga, Brampton, Vaughan, Markham, Scarborough, and the GTA.