Smoke Alarm & CO Detector
Installation — London, Ontario
Your smoke alarms are probably overdue — and Ontario's CO alarm law just changed. London Fire Protection supplies and installs combination smoke and CO alarms for homes, rentals, and multi-unit buildings across London, Ontario. OFC-compliant installation and documentation in a single visit.
Do I Need New Alarms?
Answer three quick questions and find out where you stand under Ontario's current requirements.
Gas furnace, fireplace, gas stove, or attached garage
What's Required
Ontario's smoke and CO alarm requirements apply to every home and rental unit. Most people are missing at least one.
Smoke Alarms — Every Floor
Ontario Fire Code requires a working smoke alarm on every storey of a dwelling and outside every sleeping area. Alarms must be replaced every 10 years from the manufacture date — not when they stop working. Most homes have alarms that are long past this date and don't know it.
OFC O. Reg. 213/07 — Section 2.13CO Alarms — 2026 Law Change
As of January 1, 2026, Ontario requires a carbon monoxide alarm near every sleeping area in any home with fuel-burning appliances or an attached garage. This applies to all residential properties — owned and rented. Fines for non-compliance reach $50,000 for individuals and $100,000 for corporations.
Ontario Fire Code Amendment — January 2026Landlords & Rental Properties
Landlords are responsible for installing and maintaining smoke and CO alarms in all rental units. Tenants cannot be held responsible for installation. Tenants must not tamper with alarms and must notify the landlord of any malfunction. For rental licence compliance in London, alarms must be present, functional, and within their service life.
OFC Section 2.13 — Owner ObligationsInstalled & Compliant in One Visit
Book Online or Call
Tell us your property type and rough unit count. We'll confirm availability and give you an exact price before we show up.
On-Site Assessment
We walk through your home or unit, count floors and sleeping areas, identify fuel-burning appliances, and confirm exact placement locations.
Supply & Install
We bring the units and install them in the correct locations at the correct height. Battery combo units require no electrical work.
Documentation
You receive a written record of installation — unit models, locations, and manufacture dates. Essential for landlords and rental licence compliance.
No Surprises
Flat per-unit pricing. Most homes are done in one visit with no hidden fees.
| Model | Unit | Best For | Price |
|---|---|---|---|
| 21031518 | Battery Combination Smoke & CO Alarm | Homes, rentals, any unit without interconnect requirement | $80/unit |
| 21033116 | Interconnected Combination Smoke & CO Alarm | Homes built or renovated after Jan 1, 2014 — required by OBC | $88.50/unit |
| Installation fee | $40/unit — limited time | $20/unit | |
Multi-unit rental properties and buildings are quoted based on unit count. Contact us for a property quote.
Common Questions
As of January 1, 2026, Ontario requires a carbon monoxide alarm on every storey containing a sleeping area, in all homes with fuel-burning appliances or attached garages. This applies to all residential properties — owned and rented. Landlords must ensure alarms are installed and maintained. Fines range up to $50,000 for individuals and $100,000 for corporations.
Under the Ontario Fire Code, smoke alarms must be installed on every storey of a dwelling and outside every sleeping area. A two-storey home with a basement requires a minimum of three alarms — one per floor — plus any additional units outside sleeping areas. Alarms must be ceiling-mounted or high on a wall, away from bathrooms and kitchen vents.
The landlord is responsible for installing and maintaining smoke and CO alarms in all rental units under the Ontario Fire Code. Tenants are responsible for not tampering with or removing alarms, and for reporting any malfunction to the landlord. Fines for landlord non-compliance can reach $50,000 — this is not a cost you can pass to your tenant through a lease clause.
Smoke alarms must be replaced every 10 years from the manufacture date printed on the back of the unit. This is an Ontario Fire Code requirement — not just a manufacturer recommendation. An alarm that still beeps when tested but is past its manufacture date is legally non-compliant and must be replaced. Check the back of every unit in your home.
A smoke alarm detects combustion particles from fires. A carbon monoxide detector senses CO gas from incomplete combustion — produced by gas furnaces, fireplaces, gas stoves, and vehicles in attached garages. CO is colourless and odourless, making a dedicated detector essential. Combination units detect both and are the most practical option for most Ontario homes.
Yes. Ontario law requires a working smoke alarm on every storey of a dwelling, including the basement. Additionally, an alarm must be installed outside every sleeping area. A two-storey home with a basement and bedrooms on both floors needs a minimum of three alarms — more if sleeping areas are spread across multiple locations on the same floor.
Battery-operated smoke alarms can be self-installed. However, interconnected alarms — required in homes built or substantially renovated after January 1, 2014 — may require electrical work. A professional installation ensures correct placement, proper interconnection where required, and provides documentation for landlords and rental licence compliance. Most residential installs take under an hour.
A combination unit detects both smoke and carbon monoxide in a single device. It meets both the smoke alarm requirement and the 2026 CO alarm requirement in one installation visit. London Fire Protection installs the Kidde 21033116 (interconnected) and 21031518 (battery) combination units — both ULC-listed and Ontario Fire Code compliant. For most homes, combo units are the most cost-effective solution.