Key points.
A bite proves nothing: it is the stains, the shed skins and the insect itself that confirm.
In rental housing the tenant tells the landlord, and the landlord hires the exterminator.
The company must hold a C5 or D5 permit, and its employees a CD5 certificate.
Recognize before concluding
The Government of Québec describes the adult bed bug as a brown, oval, flattened insect the size of an apple seed, measuring 4 to 7 mm. Engorged with blood, its colour ranges from red to dark brown. If you see one, photograph it next to a reference object rather than trying to identify it from memory.
Bites look like mosquito bites and are not enough to conclude: the first ones may appear clustered or in a line, and some people do not react at all. Bites alone confirm nothing, they point.
An online search mostly returns French-from-France pages and product sites. Quebec’s rules are the ones set out here.
References : Gouvernement du Québec ↗ · Gouvernement du Québec ↗
Know who does what in rental housing
What to do depends on your status, and the Government of Québec is explicit. As an owner, you contact an extermination company directly as soon as you find them. As a tenant, you inform the landlord immediately so that they contact the exterminator. In low-rental housing, contact your region’s municipal housing office.
In a multi-unit building, neighbouring units are part of the problem: ask how the intervention will be coordinated. Close cooperation between you, the landlord and the company is necessary to resolve the situation.
Owner-occupant
You hire the company yourself and you pay for the intervention.
Tenant
You inform the landlord without delay, preferably in writing. They hire the exterminator.
Low-rental housing
You contact your region’s municipal housing office.
References : Gouvernement du Québec ↗
Choose the company and check its permit
In Quebec, pesticide application is governed by permits, and the requirements are named. The company must hold a category C5 or D5 permit, and the employees applying the products must hold a CD5 certificate from the ministry of the Environment. Both are verified in the public register under the Pesticides Act.
Ask for the permit number and the exact company name before you agree to anything. A logo on a truck is not a registration, and the check takes a few minutes.
- C5 or D5 permit
- The permit the company must hold to apply pesticides in extermination work.
- CD5 certificate
- The certificate held by the person who applies the product in your home.
- Public register
- The register under the Pesticides Act, where both are verified. It is the only proof that counts.
References : Gouvernement du Québec ↗ · Gouvernement du Québec ↗
Prepare the home without spreading the problem
Preparation matters as much as treatment, and the Government of Québec puts numbers on what is expected. Declutter the rooms, empty drawers and closets, remove curtains and area rugs, then treat textiles with heat or cold using the benchmarks below.
Do not apply insecticide yourself. These products can be dangerous to health when misused, and they can make bed bugs more resistant to treatment. A mattress or piece of furniture too damaged to treat is thrown out, but not as is: make it unusable by cutting it open, wrap it in a cover or heavy plastic bag, and seal it tightly.
6 hours
The minimum delay for everyone after a treatment.
12 hours
For respiratory problems, allergies, and for children.
24 hours
For babies aged 0 to 12 months and pregnant women.
References : Gouvernement du Québec ↗ · Santé Canada ↗
What you should be able to describe on the phone
| What to compare | What to clarify with the professional |
|---|---|
| Observations | What you saw, where, and since when |
| Photos | The insect next to a reference object, the stains on the bedding |
| Housing | Owner or tenant, type of building, neighbouring units affected |
| Constraints | Children, babies, pets, aquariums, access and schedule |
Your preparation checklist
Frequently asked questions
- Do my bites prove I have bed bugs?
- No. Bites look like mosquito bites, they may appear clustered or in a line, and some people do not react at all. It is the black stains, the shed skins and the insect itself that confirm. Gouvernement du Québec ↗ · Gouvernement du Québec ↗
- I rent: who pays?
- The first step is not a question of money, it is a question of delay: tell the landlord immediately, they are the one who must hire the exterminator. In low-rental housing, contact your region’s municipal housing office. Gouvernement du Québec ↗
- Can I buy a product and treat it myself?
- The Government of Québec advises against it: misused, these products are dangerous to health, and they can make bed bugs more resistant to the treatments that follow. Gouvernement du Québec ↗
- Do I have to throw out my mattress?
- Not automatically. If it is too damaged to be treated, the government describes how to dispose of it: make it unusable by cutting it open, wrap it in a cover or heavy plastic bag, and seal it tightly before throwing it out. Gouvernement du Québec ↗
Sources and references.
- Gouvernement du Québec : Permis pour la vente et l’utilisation de pesticides ↗Quebec
- Santé Canada : Protéger vos animaux de compagnie lorsque vous utilisez des pesticides ↗Canada
- Gouvernement du Québec : Reconnaître les punaises de lit et en prévenir l’infestation ↗Quebec
- Gouvernement du Québec : Procéder à l’extermination de punaises de lit ↗Quebec
- Gouvernement du Québec : Piqûres de punaises de lit ↗Quebec
Conditions and rules may change; consult the relevant organizations for your project. The questions, tables and examples are preparation tools provided by Projet Maison 360. Source titles and links are in French.


