Pest control for apartment buildings on the South Shore

In an apartment building, a pest reported by one tenant becomes the landlord’s responsibility. The Civil Code of Québec requires every dwelling to be kept in good habitable condition. And because walls, chases and hallways are shared, one unit’s problem quickly becomes the building’s problem. On the South Shore, that is everyday reality for the multiplexes of Vieux-Longueuil and the apartment buildings around the REM stations in Brossard.

What triggers complaints

Three pests account for the vast majority of reports in rental buildings:

Bed bugs. They arrive with furniture, luggage and moves, then travel between units through shared walls. July 1 is the highest-risk period. See the page on bed bugs.

Cockroaches. German cockroaches move from one kitchen to the next along plumbing stacks. Treating a single unit does not hold, and the page on cockroaches explains why.

Mice. They get in through foundations and mechanical rooms, then move inside the walls. Sealing has to be done building-wide.

What a tribunal or a municipal inspector will look at

In a dispute, what counts is diligence: how quickly you reacted and how sound your measures were. A landlord who can show the report date, the inspection date, the notices given to tenants and the treatment reports is in a very different position from one with nothing in writing.

Coordinated treatment

Effective treatment in a building follows a whole-building logic:

1. Inspect the reported unit and the adjacent units, even without a complaint.
2. Give tenants written notice, with the preparation list and timing.
3. Treat affected units on the same day or on a shared schedule.
4. Follow up in every treated unit until activity ends.
5. Seal shared pathways: pipes, chases, outlets, garbage rooms.

What to require from a provider

• reports for each unit, not one overall report;
• a written schedule for follow-up visits;
• the preparation list to hand out to tenants, in both languages if needed;
• the CD5 certificate of the technicians who will do the work.

Preventive program or one-time treatment

A one-time treatment answers a complaint. It is unavoidable, but it always comes after the problem has settled in.

A preventive program adds regular inspections and, above all, an inspection at every tenant turnover. That is when an empty unit can be checked thoroughly, before a new tenant moves furniture in. For a building with high turnover, that single step prevents a large share of floor-wide infestations.

General tenant and landlord obligations are summarized in the FAQ, and observed ranges are on the page about pest control prices.