Pest Control Ontario

Pest Control Companies Ontario: Top Rated (2026)

Pest Agent ranks pest control companies in 10 Ontario cities, from Toronto and Ottawa to Windsor and Barrie. We compared 407 businesses with our PA Score, and 96 of them make the city rankings. Each city is scored on its own, with the same published method everywhere.

By Pest Agent · Rankings updated October 15, 2026 · See how we rank

How Does Pest Agent 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.

Read our methodology
  • Customer satisfaction, 25 of 100 pointsGoogle ratings and reviews, weighed by how many there are.
  • Licensing and insurance, 20 of 100 pointsLicence and insurance, checked against the provincial record when it is public.
  • Responsiveness, 15 of 100 pointsHow fast they reply, and whether they offer same-day or emergency service.
  • Service range, 15 of 100 pointsThe pests they treat, for homes and businesses.
  • Transparency, 15 of 100 pointsClear prices, written estimates, warranties and follow-up visits.
  • Experience, 10 of 100 pointsYears in business and how they handle complaints.

Frequently Asked Questions 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:

  1. Do you treat this pest in homes like mine?
  2. What does the treatment include, and how many visits will it take?
  3. Is a follow-up visit included?
  4. 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.

In Ontario, applying pesticides commercially generally requires an exterminator licence, and structural extermination is one of its 3 types; a business that operates an extermination service generally needs an operator licence as well. Source: ontario.ca

Get Your Pest Control Quote In Ontario

Open your city's ranking and compare at least two companies. Whether it is mice, rats, bed bugs, cockroaches, ants or wasps, ask each one what the treatment includes, how many visits it takes and whether a follow-up visit is part of it. If your Ontario city is not listed yet, we have not collected its data; we add a city once the businesses that serve it are scored.

Get a free quote