A Ville de Montréal Website

Let's fight bedbugs

Tenants, building owners and exterminators each have responsibilities in controlling bedbugs.
The best solution is to act quickly!

Recognizing a bedbug Watch the video


Bedbugs can be found in all types of homes—from luxurious or modest ones to clean and unsanitary ones. You shouldn’t be ashamed. What's important is to act quickly in order to get rid of them.


Tenants must not try to resolve the problem themselves. They must immediately notify the owner (the superintendant or manager) of the building where they are living, as soon as they notice bedbugs in their home.

Building owners

Once notified by a tenant, the building owner must call upon a qualified exterminator to detect the presence of bedbugs.


Tenants must get ready for the exterminator's visit by de-cluttering all the rooms of their home in order to make it easier for the exterminator to carry out his work and thereby limit the bedbugs' hiding places.

Find out more

Moving Without Bedbugs!

Tips for Travellers

Avoid unpleasant surprises when coming back from a trip!

Find out more

Frequently Asked Questions

What is a bedbug?

Bedbugs are insects that are visible to the naked eye. They are the size of an apple seed, have no wings and can be identified by their brown colour. They are generally found along the seams of mattresses, where they leave their droppings (excrement) and brownish stains. Bedbugs are active mainly at night and feed on human blood.

Bedbug bites cause itchiness that can result in insomnia, fatigue and anxiety. People battling bedbugs may feel ashamed and isolate themselves from others.

Are bedbugs visible to the naked eye?

Yes. Bedbugs measure 3-7 mm and are the size and shape of an apple seed. They are reddish brown in colour. You can see them under the sheets of your bed as well as along the seams and edges of mattresses.

How to detect the presence of bedbugs?

Itchiness and insect bites on your skin, as well as black stains on mattress seams and blood on sheets and pillow cases, may be signs that there are bedbugs in your bed. Bedbug bites look like mosquito bites. They cause itchiness that can disrupt sleep. In general, three to four bites will be found on the skin in a straight line or grouped together in the same spot. The exposed parts of arms, legs and the back are the most likely places to get bitten.

What should I do if I think my home is infested with bedbugs?

First, try and detect their presence. By lifting up sheets at night, you will be able to see little insects the size of an apple seed. You can also see traces of excrement and blood on the edges and seams of mattresses. If these detection efforts prove positive, act quickly, because the problem can rapidly get worse.

If you are a tenant in a residential building, you must report the presence of bedbugs as fast as possible to the building owner or manager of the building. The building owner must call upon an exterminator to check for the presence of these insect pests and destroy them.

What to do if the building owner doesn't take the necessary steps to eliminate the bedbugs?

Tenants must notify their building owner by registered mail, giving notification of the presence of bedbugs and demanding that the building owner take the necessary remedial action within 10 working days. This notice must mention that if the building owner fails to take the appropriate steps, a copy of the letter will be sent to the Division des permis et des inspections of the borough concerned.

To notify the Division des permis et des inspections in their borough, tenants must phone 311. According to the current procedure, they must then fax a copy of the letter or bring it to the point of service in their borough.