How to Hire a Pest Control Professional in Ontario
To hire a pest control company in Ontario, check its licences: anyone applying pesticides commercially needs a provincial exterminator licence, and the business needs an operator licence, which you can search on Ontario's Access Environment. Ask which pests the quote covers, how many visits are included and what follow-up is guaranteed, especially for bed bugs and cockroaches. In a Toronto apartment building covered by RentSafeTO, pests are the landlord's responsibility.
How Ontario pest control professionals compare on ProScore
ProScore lists 747 pest control professionals in Ontario, and has published a ProScore for 696 of them. 378 of those reach Trusted (70+) or higher. ProScore matched 75 of them (10%) to the WSIB register by business name. A business that is not matched may still be covered, so ask any pest control professional you are considering for a current WSIB clearance certificate.
Counted from ProScore's current listings, refreshed daily. How ProScore scores
Hiring Checklist
What Ontario's rules say
- In Ontario, unless exempt, anyone who applies pesticides commercially on property they or their employer do not own needs a pesticide exterminator licence, valid for 5 years. Government of Ontario
- Indoor pest control falls under the Structural exterminator licence class, and termite work needs the separate Termite class. Government of Ontario
- The business itself needs a pesticide operator licence, which requires licensed exterminators and insurance and expires each December 31; operator licences issued since September 2018 can be searched on Ontario's Access Environment. Government of Ontario
- In Toronto apartment buildings covered by RentSafeTO, the landlord is responsible for keeping units free of pests, including bed bugs, must inspect within 72 hours of a report, and must hire a Ministry-licensed pest control company if required; tenants must allow treatment. City of Toronto
Red Flags to Watch For
Diagnoses without inspection
Any company that quotes a treatment plan over the phone without inspecting your home is guessing.
Pressure to sign a long-term contract
Most pest problems can be resolved in 1–3 visits. Multi-year contracts are rarely necessary for residential customers.
Will not identify the specific pest
Different pests require different treatments. A company that cannot tell you exactly what you have should not be treating for it.
Uses scare tactics
Exaggerating the severity of an infestation to upsell services is a common tactic. Get a second opinion.
No follow-up visits included
Most pest treatments require at least one follow-up visit to ensure effectiveness. One-and-done is rarely sufficient.
Questions to Ask Before Hiring
“What pest are we dealing with, and how do you know?”
“What treatment method will you use?”
“Is the treatment safe for children and pets?”
“How many visits will this require?”
“What warranty do you provide?”
Licensing: MECP exterminator and operator licences
Applying pesticides for pay in Ontario requires an exterminator licence from the Ministry of the Environment, Conservation and Parks, and the business needs an operator licence. ProScore does not hold MECP licence records, so ask for both licence numbers, and check insurance, WSIB, experience, and customer reviews too.
Frequently Asked Questions
Do pest control companies need a licence in Ontario?
Yes, to apply pesticides. Applying pesticides for pay in Ontario requires an exterminator licence from the Ministry of the Environment, Conservation and Parks, and the business needs an operator licence. Ask for both licence numbers before any treatment.
How much does pest control cost in Ontario?
Single treatments range from $200–$400 for common pests. Bed bug treatments run $400–$800 per room, or $1,500–$4,000 for a whole home. Wildlife removal is typically $300–$800 per animal.
Are pest control chemicals safe for my family?
Professional-grade products, when applied correctly, are safe after the recommended re-entry period. Always ask about specific products and safety data sheets.
How do I prevent pests from coming back?
Seal entry points, eliminate food and water sources, maintain cleanliness, fix moisture issues, and consider seasonal preventive treatments for recurring problems.
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Sources
- Government of Ontario, Pesticide licences and permits (Updated June 2, 2026). Accessed October 19, 2026.
- Government of Ontario, Guide to pesticide licensing (Updated February 1, 2024). Accessed October 19, 2026.
- Government of Ontario, Pesticide licences and permits (Updated June 2, 2026). Accessed October 19, 2026.
- City of Toronto, RentSafeTO: building owner requirements. Accessed October 19, 2026.
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