64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Pest control service”.
Best Pest Control Companies in Ajax, ON (2026)
256 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Ajax: Empire wildlife Pest control, CR Score 64/100; 4.9★ from 171 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Orkin Canada Pest Control, posts 24/7 hours; ranked #2 of 256.
- 18
Most-reviewed: Avayda Pest Control, 2,104 Google reviews at 4.9★, the most of 256 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
256 Ajax pest control companies are ranked here by CR Score, from ten published factors. 135 are open 24/7, 224 open Saturdays and 206 open Sundays, based on posted hours. The median Google rating is 4.9★ across 256 rated businesses.
Top 10 pest control companies in Ajax at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Empire wildlife Pest control | 64 | 4.9★ (171) | Ajax | 24/7 | Overall |
| 2 | Orkin Canada Pest Control | 64 | 4.8★ (1,559) | Toronto, 20 km away | 24/7 | Emergencies |
| 3 | Raja Pest control services | 64 | 4.9★ (149) | Ajax | 24/7 | — |
| 4 | Pestbye Pest Control Canada | 64 | 5.0★ (142) | Pickering, 3 km away | 24/7 | — |
| 5 | Orkin Canada Pest Control | 63 | 4.8★ (454) | Oshawa, 15 km away | 24/7 | — |
| 6 | Quality Affordable Pest Control Inc | 63 | 4.9★ (373) | Oshawa, 17 km away | 24/7 | — |
| 7 | Quality Affordable Pest Control Pickering | 63 | 4.8★ (103) | Ajax | 24/7 | — |
| 8 | Marsh Pest and Wildlife Control | 63 | 5.0★ (147) | Ajax | Sat · Sun · Evenings | — |
| 9 | AstraHive Pest Control | 63 | 5.0★ (203) | Oshawa, 15 km away | 24/7 | — |
| 10 | Hello pest control | 63 | 5.0★ (282) | Toronto, 18 km away | 24/7 | — |
The 256 best pest control companies in Ajax, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Toronto, 20 km away
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 1,559 Google reviews, listed on Google as “Pest control service”.
Based in Ajax
64/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 149 Google reviews, listed on Google as “Pest control service”.
Based in Pickering, 3 km away
64/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 142 Google reviews, listed on Google as “Pest control service”.
Based in Oshawa, 15 km away
63/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 454 Google reviews, listed on Google as “Pest control service”.
Based in Oshawa, 17 km away
63/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 373 Google reviews, listed on Google as “Pest control service”.
Based in Ajax
63/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 103 Google reviews, listed on Google as “Pest control service”.
Based in Ajax
63/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 147 Google reviews, listed on Google as “Pest control service”.
Based in Oshawa, 15 km away
63/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “Pest control service”.
Based in Toronto, 18 km away
63/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 282 Google reviews, listed on Google as “Pest control service”.
Based in Toronto, 27 km away
63/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 604 Google reviews, listed on Google as “Pest control service”.
Based in Ajax
62/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 129 Google reviews, listed on Google as “Pest control service”.
Based in Markham, 28 km away
62/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 588 Google reviews, listed on Google as “Pest control service”.
Based in Toronto, 38 km away
62/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 2,016 Google reviews, listed on Google as “Pest control service”.
Based in Ajax
62/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 200 Google reviews, listed on Google as “Pest control service”.
Based in Pickering, 3 km away
62/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 1,854 Google reviews, listed on Google as “Pest control service”.
Based in Toronto, 15 km away
62/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 404 Google reviews, listed on Google as “Pest control service”.
Based in Brampton, 30 km away
62/100CR ScoreRanked #18 because of its Google rating and review volume: 4.9★ from 2,104 Google reviews, the most in Ajax.
Based in Toronto, 19 km away
62/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 733 Google reviews, listed on Google as “Pest control service”.
Based in Toronto, 19 km away
62/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 474 Google reviews, listed on Google as “Pest control service”.
Based in Pickering, 5 km away
61/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “Pest control service”.
Based in Toronto, 36 km away
61/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 1,415 Google reviews, listed on Google as “Pest control service”.
Based in Markham, 13 km away
61/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 104 Google reviews, listed on Google as “Pest control service”.
Based in Toronto, 35 km away
61/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 763 Google reviews, listed on Google as “Pest control service”.
Based in Markham, 16 km away
61/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 98 Google reviews, listed on Google as “Pest control service”.
Pest control companies ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 256 ranked pest control companies here; the rest are on their profiles.
Also serving Ajax
20 more pest control companies within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Agile Pest Control | 5.0★ (2) | 21 km |
| Capital WildLife Control - Oshawa | 5.0★ (2) | 15 km |
| Capital WildLife Control - Scarborough - Raccoon Removal | 3.5★ (2) | 19 km |
| Coremaster Inc | 5.0★ (2) | 37 km |
| Critter Control of Whitby & Oshawa | 5.0★ (2) | 13 km |
| Durham Pest | 5.0★ (1) | In Ajax |
| Eco Friendly Pest Control Whitby Oshawa | 5.0★ (1) | In Ajax |
| Mosquito Man Plus | 5.0★ (1) | 8 km |
| Nimby Pest Management | 5.0★ (2) | 30 km |
| Nimby Pest Management | 3.0★ (2) | 38 km |
| Orbit Pest Control Inc. | 5.0★ (2) | 15 km |
| Pest Pro Canada Pest Control Services | 3.0★ (2) | 26 km |
| QPS pest control Inc | 5.0★ (2) | 18 km |
| Quality Pest Control GTA | 1.0★ (1) | 4 km |
| Quality pest control Gta North york | 5.0★ (2) | 39 km |
| Sos Wildlife Control Scarborough | 5.0★ (2) | 10 km |
| Swift Pest Control of Richmond Hill | 5.0★ (2) | 32 km |
| Swift Pest Control of Thornhill | 5.0★ (2) | 31 km |
| Toronto Pest Control | 5.0★ (2) | 22 km |
| Willy Pest Control | 5.0★ (2) | 36 km |
How we ranked Ajax pest control companies
We scored 256 Ajax pest control companies on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 3, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Ajax data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Pest control companies in Ajax: frequently asked questions
Who is the best pest control company in Ajax?
By CR Score, the highest-ranked pest control company in Ajax, ON is Empire wildlife Pest control with a CR Score of 64/100. It has 4.9★ from 171 Google reviews. It is open 24/7. Orkin Canada Pest Control (#2) and Raja Pest control services (#3) follow. We ranked 256 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in Ajax?
ContractorsRanked ranks 256 pest control companies serving Ajax, ON. 11 of them are based in Ajax; the rest serve it from nearby towns. Another 20 within 40 km are listed but not ranked yet. Counts are as of November 2026.
Which pest control companies in Ajax are open 24/7?
135 ranked pest control companies in Ajax post 24/7 hours. The highest-ranked are Empire wildlife Pest control (#1), Orkin Canada Pest Control (#2) and Raja Pest control services (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Ajax work on weekends?
224 of 256 ranked pest control companies post Saturday hours and 206 post Sunday hours. The highest-ranked open Saturdays are Empire wildlife Pest control (#1), Orkin Canada Pest Control (#2) and Raja Pest control services (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Ajax pest control companies have?
The median Google rating among 256 rated pest control companies in Ajax is 4.9★, with a median of 42 reviews. Avayda Pest Control has the most, 2,104 reviews, and ranks #18. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank pest control companies?
Each pest control company gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do pest control companies outside Ajax count in this ranking?
Yes, if they are within 40 km of the Ajax city centre, our service radius for pest control companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Can pest control companies pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Ajax
- November 2026: CR Scores recalculated for 256 pest control companies serving Ajax.
More pest control companies and Ajax pages
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