62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 331 Google reviews, listed on Google as “Pest control service”.
Best Pest Control Companies in Alliston, ON (2026)
64 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Alliston: mosquito.buzz - Barrie Mosquito Control, CR Score 62/100; 4.9★ from 331 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Orkin Canada Pest Control, posts 24/7 hours; ranked #2 of 64.
- 11
Most-reviewed: Abell Pest Control, 702 Google reviews at 4.9★, the most of 64 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
64 Alliston pest control companies are ranked here by CR Score, from ten published factors. 36 are open 24/7, 53 open Saturdays and 49 open Sundays, based on posted hours. The median Google rating is 4.9★ across 64 rated businesses.
Top 10 pest control companies in Alliston at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | mosquito.buzz - Barrie Mosquito Control | 62 | 4.9★ (331) | Barrie, 30 km away | 24/7 | Overall |
| 2 | Orkin Canada Pest Control | 62 | 4.7★ (603) | Barrie, 32 km away | 24/7 | Emergencies |
| 3 | Simcoe Pest X - Pest Control and Exterminator Barrie | 61 | 5.0★ (90) | Barrie, 25 km away | 24/7 | — |
| 4 | BN Wildlife Removal | 60 | 5.0★ (185) | Barrie, 26 km away | Sat · Sun · Evenings | — |
| 5 | Mosquito Man Barrie | 60 | 4.9★ (124) | Barrie, 28 km away | 24/7 | — |
| 6 | Mosquito Terminator | 60 | 4.9★ (73) | Barrie, 22 km away | 24/7 | — |
| 7 | Vanish Pest Control Inc. | 59 | 4.9★ (154) | Newmarket, 37 km away | 24/7 | — |
| 8 | Flash Pest Control and Wildlife Removal King Vaughan | 59 | 4.9★ (80) | King, 29 km away | 24/7 | — |
| 9 | Top Choice Pest Control | Pest Control Services in Barrie & Ants Pest Control in Barrie, Pest Control Services in Toronto | 59 | 4.9★ (110) | Barrie, 33 km away | 24/7 | — |
| 10 | Pestend Pest Control Barrie | 59 | 5.0★ (50) | Barrie, 26 km away | 24/7 | — |
The 64 best pest control companies in Alliston, 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 Barrie, 32 km away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.7★ from 603 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 25 km away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 26 km away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 185 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 28 km away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 124 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 22 km away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 73 Google reviews, listed on Google as “Pest control service”.
Based in Newmarket, 37 km away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 154 Google reviews, listed on Google as “Pest control service”.
Based in King, 29 km away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 80 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 33 km away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 110 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 26 km away
59/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 25 km away
59/100CR ScoreRanked #11 because of its Google rating and review volume: 4.9★ from 702 Google reviews, the most in Alliston.
Based in Barrie, 27 km away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 156 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 32 km away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 472 Google reviews, listed on Google as “Pest control service”.
Based in Newmarket, 37 km away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 179 Google reviews, listed on Google as “Pest control service”.
#15 Mr Pest Control
Based in Barrie, 22 km away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 85 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 34 km away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Pest control service”.
Based in Newmarket, 34 km away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 74 Google reviews, listed on Google as “Pest control service”.
Based in Richmond Hill, 39 km away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Pest control service”.
Based in Barrie, 30 km away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 47 Google reviews, listed on Google as “Pest control service”.
Based in Richmond Hill, 28 km away
57/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 32 Google reviews, listed on Google as “Pest control service”.
Based in Newmarket, 34 km away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “Pest control service”.
Based in Newmarket, 34 km away
57/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.7★ from 46 Google reviews, listed on Google as “Pest control service”.
#23 Varmint Control
Based in Barrie, 21 km away
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.0★ from 53 Google reviews, listed on Google as “Pest control service”.
Based in Scarborough, 28 km away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Pest control service”.
Based in Richmond Hill, 40 km away
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 51 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 64 ranked pest control companies here; the rest are on their profiles.
Also serving Alliston
18 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 |
|---|---|---|
| Check Pest Control Barrie | 30 km | |
| Critter Cop Pest Control | 5.0★ (1) | 33 km |
| GTA Bed Bug Exterminators | 5.0★ (2) | 33 km |
| Markham Wildlife Removal - King City | 37 km | |
| Mohsen | 5.0★ (1) | 40 km |
| Mosquito Hero | 37 km | |
| Mosquito Man Aurora | 38 km | |
| Nimby Pest Management | 3.0★ (2) | 37 km |
| OMG Pest control services | 3.5★ (2) | 36 km |
| Pest Control Barrie Exterminator | 5.0★ (2) | 28 km |
| Pest Hound | 5.0★ (1) | 37 km |
| Pestzerro | 38 km | |
| Prime Pest Control Barrie | 3.0★ (2) | 38 km |
| SIMCOE MOSQUITO | 25 km | |
| Star Pest Control | 30 km | |
| Swift Pest Control of King City | 37 km | |
| Swift-X Pest Control | 5.0★ (2) | 29 km |
| York Pest Control | 5.0★ (1) | 36 km |
How we ranked Alliston pest control companies
We scored 64 Alliston 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 Alliston 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 Alliston: frequently asked questions
Who is the best pest control company in Alliston?
By CR Score, the highest-ranked pest control company in Alliston, ON is mosquito.buzz - Barrie Mosquito Control with a CR Score of 62/100. It has 4.9★ from 331 Google reviews. It is open 24/7. Orkin Canada Pest Control (#2) and Simcoe Pest X - Pest Control and Exterminator Barrie (#3) follow. We ranked 64 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in Alliston?
ContractorsRanked ranks 64 pest control companies serving Alliston, ON. Another 18 within 40 km are listed but not ranked yet. Counts are as of November 2026.
Which pest control companies in Alliston are open 24/7?
36 ranked pest control companies in Alliston post 24/7 hours. The highest-ranked are mosquito.buzz - Barrie Mosquito Control (#1), Orkin Canada Pest Control (#2) and Simcoe Pest X - Pest Control and Exterminator Barrie (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Alliston work on weekends?
53 of 64 ranked pest control companies post Saturday hours and 49 post Sunday hours. The highest-ranked open Saturdays are mosquito.buzz - Barrie Mosquito Control (#1), Orkin Canada Pest Control (#2) and Simcoe Pest X - Pest Control and Exterminator Barrie (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Alliston pest control companies have?
The median Google rating among 64 rated pest control companies in Alliston is 4.9★, with a median of 40 reviews. Abell Pest Control has the most, 702 reviews, and ranks #11. 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 Alliston count in this ranking?
Yes, if they are within 40 km of the Alliston 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 Alliston
- November 2026: CR Scores recalculated for 64 pest control companies serving Alliston.
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