Ontario
Pest Control Ontario
Pest Control Companies Ontario: Top Rated (2026)
Find the best pest control companies in Ontario, city by city. We compared 75 businesses across 1 city, and the 10 that scored highest on our PA Score make the rankings.
Pest control companies ranked by our published methodology (PA Score).
75Businesses compared - Only 10 Selected
Rankings updated October 4, 2026
Pest Control Companies By City In Ontario
Pick your city to see its ranking. Each city has its own list, built from the businesses that serve it.
- See the ranking
TOP PA 92.7
How We Rank Pest Control Companies In Ontario
We score every business serving a city the same way, using our own PA Score (Pest Agent Score), computed from data our team collected. We collect and score each city again at least every 6 months.
What Goes Into The PA Score?
6 criteria, out of 100 points:
25PTS
Customer satisfaction
ratings and reviews from Google and other platforms where available, adjusted for volume, so a 5.0 on 12 reviews does not beat a 4.8 on 400
20PTS
Licensing and insurance
licence and insurance information published by the business, checked against the provincial licence record where one is public
15PTS
Responsiveness
how quickly the business replies to customers and whether it offers emergency or same-day service
15PTS
Service range
the pests treated, for homes and businesses
15PTS
Transparency
published prices, free or written estimates, warranties and follow-up visits
10PTS
Experience and track record
years in business and how the business handles complaints
Are Paid Listings Part Of The Ranking?
No. Scores are computed without knowing who pays, and a paid placement never changes a score or a rank. Paid placements appear only as Verified partner cards, tagged Sponsored and kept outside the numbered list.
How we rankQuestions About Pest Control In Ontario
How Do I Choose An Exterminator In Ontario?
Start with the pest. If you are not sure what you have, our pest guides can help you identify it. Then open your city's ranking, compare at least two businesses and ask each one the same questions:
- Do you treat this pest in homes like mine?
- What does the treatment include, and how many visits will it take?
- Is a follow-up visit included?
- Can I have a written estimate before the work starts?
Choose the business whose answers are clear and in writing.
Why Is My City Not Listed?
We publish a city only once our team has collected the data of the businesses that serve it. Cities without a published ranking are not shown yet.
How Often Is This Ranking Updated?
Each city ranking shows the date it was computed. We collect and score each city again at least every 6 months.
Does Pest Agent Do Pest Control Work?
No. Pest Agent compares businesses and publishes the ranking: we do not do pest control work ourselves. Each business card in a city ranking links to its profile and, when it has one, its website.
Can A Business Ask To Be Corrected Or Removed?
Facts, yes. If a phone number, address, opening hours or website is wrong, tell us through our contact page and we correct it at the next update, the same way for every business, paying or not. We do not remove a business from a ranking on request, so the ranking stays complete and fair. Two exceptions: a business that has closed is removed, and a sole proprietor's personal information, such as a home address, is removed or replaced on request.
Rankings updated October 4, 2026.
By the Pest Agent editorial team. How we rank · Editorial Standards