Pest control in apartment buildings: manage the building, not the suite.

Updated October 3, 2026 · DF Property Management

The landlord's obligation

In Ontario, landlords must keep rental units and common areas in a good state of repair and fit for habitation, and comply with health, safety and maintenance standards. Municipal property standards by-laws, including Toronto's, require properties to be kept free of pests and of conditions that encourage infestation. In practice, the landlord arranges and pays for professional pest control. Tenants are expected to report problems promptly and cooperate with treatment.

Integrated pest management

Integrated pest management (IPM) is the standard approach for multi-unit buildings. Instead of spraying on demand, it combines:

1. Inspection and monitoring — regular checks of common areas and high-risk spaces, with monitors and traps that show activity before tenants do.
2. Identification — the right species, because German cockroaches, bed bugs and mice need different treatments.
3. Prevention — sealing gaps around pipes and baseboards, door sweeps, screens, fixing leaks, good waste management.
4. Targeted treatment — the least disruptive effective method, applied by a licensed professional.
5. Follow-up — re-inspection until activity stops, then continued monitoring.
6. Records — what was found, where, what was done and the result.

In Ontario, commercial pesticide application must be done by a person licensed as a structural exterminator under the Pesticides Act, or under their supervision. Building staff should not be applying commercial products.

RentSafeTO pest requirements in Toronto

For buildings covered by RentSafeTO (3+ storeys and 10+ units), the City sets specific operator duties. In general:

• A written pest management plan, with documentation of pest control services and schedule posted on the tenant notification board.
• Inspection of common areas at least once every 30 days.
• Action within 72 hours of receiving information about pests.
• Use of licensed pest control professionals.
• Pest control records kept and available to the City.
• No new tenancy in a unit with a known pest problem.

Bed bugs

Bed bugs travel with people and their belongings, and move between suites through wall voids, outlets and along pipes. In apartment buildings:

• Inspect neighbours. When one suite is confirmed, inspect the units on either side, above and below.
• Follow the treatment plan. Chemical treatments usually require more than one visit, spaced apart. Heat treatment can kill bugs in one visit but is more expensive and still needs follow-up.
• Prepare the unit. Tenants typically need to bag and launder bedding and clothing, clear floor areas and pull furniture from walls. Provide written preparation instructions — in the tenant's language where possible.
• Support tenants who can't prepare. Elderly tenants or those with disabilities may need help. Building it into the plan is faster than repeated failed treatments, and it's part of the duty to accommodate.
• Bulk waste. Infested furniture should be wrapped and labelled before removal so it isn't picked up from the curb or garbage room and carried into another suite.

Cockroaches

German cockroaches thrive in kitchens and bathrooms and spread through plumbing chases. Gel baits, insect growth regulators and dust in voids are the usual tools, and they work best on a scheduled, building-wide or stack-wide program rather than single-suite visits. Sealing penetrations behind fridges, stoves and under sinks during suite turnovers pays off for years.

Rodents

Mice and rats follow food and shelter. In apartment buildings, the garbage room, chute, compactor and exterior bins are the usual source. Keep chute rooms clean, bins closed, organics collected regularly and exterior grade sealed. Bait stations outside, traps inside, and exclusion work on gaps larger than a pencil.

Notice of entry

Pest control in an occupied suite usually requires proper written notice under the Residential Tenancies Act: at least 24 hours, stating the reason, the date and a time window between 8 a.m. and 8 p.m. Routine pest treatment generally isn't an emergency. Give enough lead time for tenants to prepare — a notice delivered the night before a bed bug treatment usually means a failed visit.

Tenant cooperation

Most failed pest programs come down to access and preparation. What helps:

• Clear, short notices with pictures, translated for multilingual buildings.
• A named contact for questions, and a way to request help with preparation.
• Reassurance: tenants who fear being blamed hide problems. Make reporting easy and non-judgmental.
• Documentation: when a tenant refuses access or repeatedly fails to prepare, keep notices, technician reports and photos. Persistent non-cooperation that affects other tenants can become a Landlord and Tenant Board matter, but it rarely needs to get there.

Early warning signs in common areas

Staff walking the building every day see problems before tenants report them. Train them to look for droppings along garbage room walls, gnawed bags, cockroaches near laundry machines or compactor rooms, and discarded mattresses or sofas left by the bins — the classic route for bed bugs to move from one suite to another. Log each sighting with the date, location and a photo, and pass it to the pest contractor on the next visit, or sooner when activity is new.

Choosing a pest control contractor

• Licensing. Confirm the company and its technicians hold the required Ontario licences.
• Multi-residential experience. Apartment buildings need a different approach from houses and restaurants.
• Reporting. Written service reports after every visit, noting units, findings, products used and follow-up dates.
• Clear pricing. Per-visit, per-unit and contract pricing for scheduled common-area service and bed bug programs.
• Tenant materials. Preparation sheets you can hand out, ideally in several languages.

Budgeting for pests

A scheduled monthly contract for common areas and garbage rooms costs less over a year than reacting to an established cockroach or bed bug problem. Put pest control in the operating budget as a fixed line, with a separate allowance for bed bug treatments, which can involve several suites at once.

Turnovers and common areas

Inspect every vacant suite before it's re-rented, and treat if needed. Use turnovers to seal penetrations. In common areas, keep laundry rooms, storage lockers and recycling rooms tidy — clutter and food waste make every treatment less effective.

How we manage pests

For buildings under our apartment building management, we set up a building-wide pest plan with a licensed contractor, inspect common areas on schedule, act on every report quickly, and log each treatment with photos. Tenants get proper notice and preparation instructions; you get the records. Pest work is coordinated through our maintenance team.