If you rent an apartment or condo in Toronto and you’ve just spotted cockroaches, mice, or bed bugs, the first question isn’t usually “how do I get rid of them?” — it’s “who’s supposed to pay for this, me or my landlord?”
The short answer under Ontario law: the landlord is almost always responsible. But the real-world answer is messier, because tenants and landlords in the GTA regularly negotiate who pays based on how the pest got there in the first place.
Here’s what the law actually says, and what usually happens in practice.
What Ontario Law Says (the RTA in Plain English)
In Ontario, rentals are governed by the Residential Tenancies Act (RTA). Two sections matter here:
- Section 20 — the landlord is responsible for maintaining the rental in a good state of repair and fit for habitation, and for complying with health, safety, and maintenance standards.
- Section 33 — the tenant is responsible for ordinary cleanliness of the unit.
Toronto also has Municipal Code Chapter 629 (Property Standards), which explicitly requires landlords to keep buildings free of pests (rats, mice, cockroaches, bed bugs, etc.).
Translation: a pest infestation is treated as a repair/habitability issue, not a cleaning issue. That puts it on the landlord by default — including the cost of hiring a licensed exterminator.
This is true whether you rent from:
- A big property management company
- A small “mom and pop” landlord
- A condo owner renting out their unit (the unit owner is your landlord, not the condo board)

“But My Lease Says I’m Responsible…”
You’ll sometimes see leases with a clause like: “Tenant is responsible for all pest control costs during the tenancy.”
Under Ontario law, that clause is generally not enforceable. The RTA overrides the lease. A landlord cannot contract out of their obligation to provide a pest-free home.
The Landlord and Tenant Board (LTB) has consistently ruled that pest infestations are the landlord’s responsibility to treat, even when the lease says otherwise.
When Can a Tenant Be Held Responsible?
There’s one important exception: if the landlord can prove the tenant caused the infestation, the tenant can be held liable for the cost of treatment.
Examples where a tenant might be on the hook:
- Bed bugs traced to the tenant’s used furniture picked up off the curb (a very common Toronto scenario).
- Cockroaches or pantry pests tied to severe, documented poor housekeeping — not “dishes in the sink,” but hoarding-level conditions.
- Bringing pests home from travel (bed bugs from a hotel, for example), if it can actually be proven.
In practice, proving cause is hard. Cockroaches travel through shared walls, plumbing chases, and hallways in multi-unit buildings. Mice come in from the exterior. Bed bugs hitchhike on anyone. So while landlords sometimes try to bill tenants, the LTB usually sides with the tenant unless the evidence is very clear.
The Real World: How Toronto Tenants & Landlords Actually Split It
Here’s the part most legal articles skip. In practice, plenty of Toronto tenants and landlords negotiate who pays based on who feels responsible for the pest — and both sides often prefer that over a formal fight.
Common examples we see in the GTA:
- Tenant brought in bed bugs from a trip or used couch ? tenant offers to cover the treatment (or split it 50/50) to keep the relationship good and avoid an LTB hearing.
- Tenant left food out and got a mouse problem in a single-family rental ? tenant pays, landlord doesn’t push it further.
- Cockroaches showing up in a whole apartment stack ? clearly a building issue, landlord pays without argument.
- One-off wasp nest on the tenant’s balcony ? often split, or the tenant just pays because they want it gone today.
- Recurring rodent issue in an old house rental ? landlord pays, because it’s clearly a structural/exclusion problem.
None of this is required by law. It’s just how a lot of reasonable landlords and tenants actually settle things in Toronto without dragging the LTB into it. If you’re the tenant and you genuinely brought the problem in, offering to help pay often gets you faster, better service — because the landlord isn’t dragging their feet.
If you’re the landlord and the pest is clearly a building-wide or structural issue, paying quickly (and treating adjacent units at the same time) usually costs less than the complaints, LTB filings, and vacancy that come from ignoring it.

What Tenants Should Do (Step by Step)
If you’re a renter in Toronto or the GTA and you’ve found pests:
- Report it in writing. Email or text — not just a phone call. You need a paper trail. Describe what you’re seeing and where.
- Give the landlord a reasonable window to act — typically 24–72 hours to respond, and a few days to schedule treatment for most pests. Bed bugs and cockroaches should move faster than that.
- Don’t try to DIY with hardware store sprays for cockroaches or bed bugs. You’ll scatter them into neighbouring units and make professional treatment harder (and more expensive).
- If the landlord ignores you, contact Toronto 311 to file a Property Standards complaint, or apply to the Landlord and Tenant Board (LTB) for a maintenance order and possibly a rent abatement.
- Prepare for treatment. Cooperate with prep instructions (laundry, moving furniture, emptying cabinets). If the tenant refuses to prep, the landlord can legitimately push cost or blame back on the tenant.
What Landlords Should Do
If you own a rental unit or building in the GTA:
- Respond in writing, fast. Even a “we’ve booked a licensed exterminator for Thursday” reply protects you.
- Hire a licensed pest control company — not a handyman with a can of Raid. The LTB and Toronto Public Health both take licensed treatment seriously.
- Treat adjacent units for cockroaches, bed bugs, and mice. Treating only the complaining unit is the #1 reason infestations come back and end up at the LTB.
- Document everything — service reports, invoices, prep instructions given to the tenant, and tenant cooperation (or lack of it).
- Only bill the tenant if you have real evidence they caused the problem. Otherwise you’re likely to lose at the LTB and damage the tenancy.

Condos: One Extra Wrinkle
If you’re renting a condo in Toronto:
- Your landlord is the unit owner, not the condo corporation.
- The condo corporation is usually responsible for pests in common elements (hallways, garbage rooms, mechanical rooms, exterior walls).
- If the pest is coming from a neighbouring unit or common area, the unit owner should escalate to property management — but from the tenant’s point of view, you still deal with your landlord.
FAQs (What Toronto Renters Actually Google)
Is the landlord responsible for pest control in Ontario?
Yes, in almost all cases. Under the Residential Tenancies Act and Toronto’s Property Standards bylaw, landlords are responsible for maintaining a pest-free rental.
Can my landlord make me pay for pest control?
Only if they can prove you caused the infestation (e.g., bed bugs from used furniture you brought in). A general “tenant pays” clause in the lease is not enforceable.
Who pays for bed bugs in a Toronto apartment?
The landlord, by default. In practice, if a tenant clearly introduced the bed bugs, many tenants offer to help cover the cost to speed things up.
How long does a landlord have to fix a pest problem in Ontario?
The RTA says “reasonable time.” For serious pests (cockroaches, bed bugs, rodents), that generally means within days, not weeks. Delays can trigger LTB rent abatements.
Can I withhold rent because of pests?
No. Withholding rent in Ontario can get you evicted. Instead, apply to the LTB for a maintenance order and possible rent abatement.
Does Toronto 311 handle pest complaints?
Yes. 311 will refer Property Standards complaints against landlords who won’t act. This is a very effective step before going to the LTB.
The Bottom Line
Under Ontario law, pest control in a rental unit is the landlord’s responsibility — and any lease clause saying otherwise usually won’t hold up. Tenants only get stuck with the bill when there’s clear evidence they caused the problem.
But in the real world, Toronto tenants and landlords often settle this quietly: whoever brought the pest in usually offers to help pay, and everyone moves on faster than an LTB hearing would allow.
Whether you’re a renter dealing with cockroaches in a downtown highrise, or a landlord managing a triplex in Scarborough, the same rule applies: treat pests fast, use a licensed company, and document everything.
Swift-X Extermination works with tenants, homeowners, landlords, and property managers across Toronto and the GTA — including discreet, unmarked service vehicles for multi-unit buildings. Call (647) 478-2128 or Email us if you need a licensed technician on site quickly.

