Smoke & CO Detector Installation in Toronto & the GTA

Ontario law requires working smoke alarms on every storey of your home and outside every sleeping area — and a surprising number of GTA houses fail on at least one of those, usually the basement or a converted bedroom. Add the ten-year expiry date printed on the back of every unit, and most homes are overdue for a smoke alarm replacement even if everything chirps when you press the test button.

Doing this properly is mostly about placement and honesty about wiring. Alarms go on or near the ceiling, away from the dead-air corners, and far enough from kitchens and bathrooms that steam and toast don't cause nuisance trips that tempt people to pull batteries. Carbon monoxide detector installation has its own rule: units belong adjacent to sleeping areas in any home with a fuel-burning appliance, fireplace or attached garage. On the wiring side, battery and plug-in units are minor work we handle directly; a hardwired smoke detector ties into the house wiring, and electrical work for hire in Ontario must be done by a Licensed Electrical Contractor registered with the ESA — so for hardwired and interconnected systems, we coordinate the licensed people rather than pretending.

For a free quote, tell us how many storeys and bedrooms you have, whether you heat with gas or have a fireplace or attached garage, and send a photo of one or two existing alarms — the date stamp on the back tells us a lot. We'll map out how many units you actually need and where they go.

• Battery-powered smoke alarm installation and replacement
• Sealed ten-year lithium units that never need a battery change
• Carbon monoxide detector installation adjacent to sleeping areas
• Combination smoke and CO units where one device covers both
• Replacing expired alarms — every unit has a service life, usually ten years
• Placement to Ontario Fire Code requirements: every storey plus outside each sleeping area
• Relocating alarms that sit too close to kitchens or bathrooms and false-alarm constantly
• Wireless-interconnect battery alarms so one alarm triggers them all
• Coordinating a Licensed Electrical Contractor for hardwired and interconnected wiring
• Testing every unit on the way out and marking install dates

• Number of storeys and bedrooms — the Fire Code minimum grows with each sleeping area and level, including the basement
• Ceiling heights — stairwell and vaulted ceilings mean ladder work that takes longer than a standard eight-foot room
• Battery versus hardwired — battery swaps are quick; anything touching house wiring gets routed to a Licensed Electrical Contractor, which affects scheduling
• Age of the existing units — one expired alarm is a small visit, while a whole house of 2009-era units is a full replacement round
• Fuel-burning appliances and attached garages — these determine how many CO detectors the house needs and where
• Interconnection — linking alarms so they all sound together is worthwhile in larger homes and adds setup time per unit

Every home is different, so we don’t publish flat prices — the quote is free and based on your actual job. See how handyman pricing works in the GTA.