Guide

Smoke and carbon monoxide alarms: who must install them in Quebec

Who is responsible for installing, maintaining and testing smoke and carbon monoxide alarms in a Quebec dwelling, and what to do when nothing is done.

Check before acting

Who is responsible for installing, maintaining and testing smoke and carbon monoxide alarms in a Quebec dwelling, and what to do when nothing is done.

No alarm is silent

A missing alarm makes no sound and a dead battery looks exactly like a working device, which is why testing has to be scheduled and written down rather than remembered.

Landlord or tenant

The dwelling must be delivered with the required detection devices in working order, and those devices are part of the building. A tenant must test them, replace a battery when the device asks for it, and report in writing any missing, painted or silent alarm. Never remove an alarm to cook or sleep.

Where carbon monoxide comes from

Clogged vents, combustion appliances in a tight room, a generator or a barbecue used indoors: the danger is the exhaust, not the appliance. Headaches, nausea or unusual drowsiness in several occupants at once mean ventilate, get out, then call.

Make the landlord act

A missing device is a defect in the dwelling. Write to the landlord, allow a reasonable delay, keep proof, then use the recourse described in the unhealthy-dwelling process at the Tribunal administratif du logement.

Official sources

  1. Quebec — safety and civil protection
  2. Tribunal administratif du logement

Related pages

Sources: Quebec — safety and civil protection (https://www.quebec.ca/securite-publique); Tribunal administratif du logement (https://www.tal.gouv.qc.ca/). Checked September 20, 2026 — amounts, deadlines and fees are not reproduced here: confirm the current value with the official source.
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