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Guide 09 · Pest control

Bed bugs: recognizing the signs and preparing for treatment

A bite on waking is not a conclusion. Before you call, you can gather precise observations. This guide helps you describe the situation, understand who does what in rental housing, and prepare for the visit without making things worse.

4 chaptersQuebec
01Recognize before concluding02Know who does what in rental housing03Choose the company and check its permit
00Pest control · The home guides

Key points.

  1. A bite proves nothing: it is the stains, the shed skins and the insect itself that confirm.

  2. In rental housing the tenant tells the landlord, and the landlord hires the exterminator.

  3. The company must hold a C5 or D5 permit, and its employees a CD5 certificate.

01Pest control · The home guides

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.

What confirms, and where to look
Small black droppings stains on the mattress seams, the box spring, the headboard
Shed skins, the translucent casings left by growing insects
Blood stains on the sheets, especially near the seams
The insect itself, in seams, cracks and behind baseboards
Bites on waking, which point but do not confirm

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 ↗

02Pest control · The home guides

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.

Who does what, by 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 ↗

03Pest control · The home guides

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.

The three codes you will see
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 ↗

04Pest control · The home guides

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.

The official benchmarks for textiles
60 °Cin the washer, very hot water, full cycle
30 minin the dryer, at very high heat
100 °Cwith hot steam
-18 °Cin the freezer, for at least three and a half days
How long before going back into the home

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 ↗

05Use during your conversations

What you should be able to describe on the phone

What to compareWhat to clarify with the professional
ObservationsWhat you saw, where, and since when
PhotosThe insect next to a reference object, the stains on the bedding
HousingOwner or tenant, type of building, neighbouring units affected
ConstraintsChildren, babies, pets, aquariums, access and schedule
06Keep it handy

Your preparation checklist

Observations noted with rooms and dates
Photos taken next to a reference object
Landlord informed without delay if you rent
C5 or D5 permit of the company verified in the public register
Preparation instructions and re-entry delay obtained in writing
Keep the guide and checklist (French PDF)
07The questions we get

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.

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.