43 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Thorold: Truly Nolen Pest Control & Exterminators Niagara, CR Score 66/100; 4.9★ from 1,503 Google reviews; open 24/7.
Best for emergencies (open 24/7): Buffalo Exterminators, posts 24/7 hours; ranked #2 of 43.
Most-reviewed: Buffalo Exterminators, 1,395 Google reviews at 4.9★, the most of 43 ranked after Truly Nolen Pest Control & Exterminators Niagara; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
43 Thorold pest control companies are ranked here by CR Score, from ten published factors. 12 are open 24/7, 30 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.9★ across 43 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Truly Nolen Pest Control & Exterminators Niagara | 66 | 4.9★ (1,503) | St. Catharines, 6 km away | 24/7 | Overall |
| 2 | Buffalo Exterminators | 62 | 4.9★ (1,395) | Buffalo, 39 km away | 24/7 | Emergencies, Most reviews |
| 3 | Mosquito Man Niagara | 62 | 4.6★ (145) | St. Catharines, 7 km away | 24/7 | — |
| 4 | Regional Pest Management | 60 | 4.9★ (92) | St. Catharines, 10 km away | Sat · Sun | — |
| 5 | Akim Pest Control - Niagara Region | 59 | 4.4★ (82) | Niagara Falls, 5 km away | Sat · Sun · Evenings | — |
| 6 | AMW Pest Control | 59 | 5.0★ (28) | St. Catharines, 8 km away | Sat · Sun · Evenings | — |
| 7 | Peninsula Pest Control & Chemical Ltd | 58 | 4.4★ (46) | St. Catharines, 8 km away | Sat · Sun · Evenings | — |
| 8 | Top Guard Pest Control Inc | 58 | 5.0★ (13) | St. Catharines, 7 km away | Sat · Sun · Evenings | — |
| 9 | mosquito.buzz - Mosquito Control St. Catharines | 58 | 5.0★ (30) | St. Catharines, 6 km away | Sat · Evenings | — |
| 10 | Pest Management Services | 57 | 4.2★ (10) | St. Catharines, 9 km away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 in Thorold
Based in St. Catharines, 6 km away
Ranked #1 because of its Google rating and review volume: 4.9★ from 1,503 Google reviews, the most in Thorold.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buffalo, 39 km away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 1,395 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 7 km away
Ranked #3 because of its Google rating and trade focus: 4.6★ from 145 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 10 km away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 92 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Niagara Falls, 5 km away
Ranked #5 because of its Google rating and trade focus: 4.4★ from 82 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 8 km away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 8 km away
Ranked #7 because of its Google rating and trade focus: 4.4★ from 46 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 7 km away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 6 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 9 km away
Ranked #10 because of its Google rating and trade focus: 4.2★ from 10 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North Tonawanda, 27 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 439 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 3 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Williamsville, 36 km away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 87 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Thorold
Ranked #14 because of its Google rating and review volume: 4.7★ from 101 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 13 km away
Ranked #15 because of its Google rating and trade focus: 4.1★ from 48 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buffalo, 27 km away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 100 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 5 km away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 11 km away
Ranked #18 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Norfolk County, 34 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 74 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buffalo, 38 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 275 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buffalo, 37 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 5 km away
Ranked #22 because of its Google rating and trade focus: 3.6★ from 11 Google reviews, listed on Google as “Pest control service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Tonawanda, 28 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in St. Catharines, 6 km away
Ranked #24 because of its Google rating and trade focus: 3.2★ from 28 Google reviews, listed on Google as “Pest control service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Grand Island, 19 km away
Ranked #25 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Pest control service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #43, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Paradisus Window Cleaning & House Washing Services | 53 | 4.8★ (436) | 6 km |
| 27 | NIAGARA PEST | 53 | 5.0★ (4) | 13 km |
| 28 | Liftoff Softwash Solutions | 53 | 5.0★ (16) | 8 km |
| 29 | Simply the Best Cleaning Services | 53 | 5.0★ (156) | 37 km |
| 30 | Urge to Purge Inc. | 52 | 4.6★ (34) | 15 km |
| 31 | Team Green Lawn Care | 52 | 5.0★ (66) | 9 km |
| 32 | Bed Bug Rx, LLC | 52 | 5.0★ (11) | 30 km |
| 33 | Bugs No More | 52 | 4.6★ (14) | 31 km |
| 34 | Avid Pest Services | 51 | 4.9★ (36) | 38 km |
| 35 | Amherst Exterminators | 49 | 3.7★ (21) | 37 km |
| 36 | Bugbusters | 49 | 4.0★ (4) | 33 km |
| 37 | Buffalo Pest Service | 49 | 4.0★ (4) | 37 km |
| 38 | New System Pet Control Srv | 49 | 4.2★ (5) | 39 km |
| 39 | Empire State Exterminating Inc | 49 | 5.0★ (9) | 36 km |
| 40 | TRAPLY | 47 | 5.0★ (11) | 40 km |
| 41 | JacopilleBornheimer Wildlife | 47 | 3.4★ (16) | 36 km |
| 42 | Ashland Pest Control, Inc. | 47 | 4.0★ (4) | 35 km |
| 43 | Critter Control of Buffalo | 46 | 4.9★ (79) | 37 km |
13 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 |
|---|---|---|
| Ashland Environmental | 35 km | |
| Buffalo Pest Control Inc | 5.0★ (1) | 37 km |
| Chris | 5.0★ (1) | 10 km |
| Eco Friendly Pest Management in Buffalo | 5.0★ (1) | 37 km |
| Eco Friendly Pest Management in Buffalo | 37 km | |
| Eco Pest Control of Buffalo | 5.0★ (1) | 36 km |
| Gravion Pest Control | 37 km | |
| Guardian Pest Solutions | 36 km | |
| Pest Control St Catharines | 13 km | |
| Pestech Ontario | 5.0★ (2) | 3 km |
| Petty Pest Control St. Catharines | 6 km | |
| RodentRadar | 36 km | |
| Skunk Removal Services Niagara | 5.0★ (2) | 13 km |
We scored 43 Thorold 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 Thorold 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 |