62/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.6★ from 660 Google reviews, listed on Google as “Pest control service”.
Best Pest Control Companies in St. Thomas, ON (2026)
48 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in St. Thomas: Orkin Canada Pest Control, CR Score 62/100; 4.6★ from 660 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): mosquito.buzz - London Mosquito Control, posts 24/7 hours; ranked #2 of 48.
- 10
Most-reviewed: Abell Pest Control Inc., 937 Google reviews at 4.9★, the most of 48 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
48 St. Thomas pest control companies are ranked here by CR Score, from ten published factors. 13 are open 24/7, 29 open Saturdays and 28 open Sundays, based on posted hours. The median Google rating is 4.8★ across 48 rated businesses.
Top 10 pest control companies in St. Thomas at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Orkin Canada Pest Control | 62 | 4.6★ (660) | London, 23 km away | 24/7 | Overall |
| 2 | mosquito.buzz - London Mosquito Control | 61 | 4.9★ (230) | London, 28 km away | 24/7 | Emergencies |
| 3 | YAZ Pest Control Solutions | 61 | 5.0★ (140) | London, 27 km away | 24/7 | — |
| 4 | Pestend Pest Control London | 60 | 4.8★ (117) | London, 24 km away | 24/7 | — |
| 5 | Skedaddle Humane Wildlife Control | 60 | 4.9★ (240) | London, 27 km away | Sat · Sun · Evenings | — |
| 6 | MVO | 60 | 4.8★ (65) | London, 20 km away | 24/7 | — |
| 7 | Wild Things Wildlife Control | 59 | 4.8★ (223) | London, 27 km away | Sat · Sun | — |
| 8 | Mosquito Man London | 59 | 4.8★ (63) | London, 24 km away | 24/7 | — |
| 9 | Toodaloo Pest Control | 59 | 5.0★ (64) | Thunder Bay, 20 km away | Sat · Sun · Evenings | — |
| 10 | Abell Pest Control Inc. | 59 | 4.9★ (937) | London, 28 km away | — | Most reviews |
The 48 best pest control companies in St. Thomas, 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 London, 28 km away
61/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 230 Google reviews, listed on Google as “Pest control service”.
Based in London, 27 km away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 140 Google reviews, listed on Google as “Pest control service”.
Based in London, 24 km away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.8★ from 117 Google reviews, listed on Google as “Pest control service”.
Based in London, 27 km away
60/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 240 Google reviews, listed on Google as “Pest control service”.
#6 MVO
Based in London, 20 km away
60/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 65 Google reviews, listed on Google as “Pest control service”.
Based in London, 27 km away
59/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 223 Google reviews, listed on Google as “Pest control service”.
Based in London, 24 km away
59/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 63 Google reviews, listed on Google as “Pest control service”.
Based in Thunder Bay, 20 km away
59/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Pest control service”.
Based in London, 28 km away
59/100CR ScoreRanked #10 because of its Google rating and review volume: 4.9★ from 937 Google reviews, the most in St. Thomas.
Based in London, 29 km away
58/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.6★ from 124 Google reviews, listed on Google as “Pest control service”.
Based in London, 21 km away
58/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 116 Google reviews, listed on Google as “Pest control service”.
#13 Pestress
Based in London, 16 km away
58/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Pest control service”.
Based in Norfolk County, 20 km away
58/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.7★ from 37 Google reviews, listed on Google as “Pest control service”.
Based in London, 20 km away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Pest control service”.
Based in London, 26 km away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 44 Google reviews, listed on Google as “Pest control service”.
Based in London, 20 km away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Pest control service”.
Based in London, 18 km away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 50 Google reviews, listed on Google as “Pest control service”.
Based in London, 34 km away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 136 Google reviews, listed on Google as “Pest control service”.
Based in London, 37 km away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 74 Google reviews, listed on Google as “Pest control service”.
Based in London, 31 km away
57/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.6★ from 75 Google reviews, listed on Google as “Pest control service”.
Based in London, 25 km away
56/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 43 Google reviews, listed on Google as “Pest control service”.
Based in St. Thomas
56/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “Pest control service”.
#24 PestXterminators
Based in London, 20 km away
56/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Pest control service”.
Based in London, 23 km away
56/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Pest control service”.
All 48 pest control companies
#1 to #25 are shown in full above. Here are #26 to #48, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Pest Case Scenario | 56 | 5.0★ (56) | 26 km |
| 27 | Bats Canada | 55 | 4.8★ (87) | 20 km |
| 28 | Mosquito Hero | 55 | 4.8★ (61) | 18 km |
| 29 | ASAP Pest Control | 54 | 4.6★ (76) | 18 km |
| 30 | Rentokil Pest Control Canada | 54 | 3.0★ (4) | In St. Thomas |
| 31 | Top Guard Pest Control Inc | 54 | 5.0★ (9) | 24 km |
| 32 | GLOBAL SHIELD PEST CONTROL | 54 | 5.0★ (6) | 19 km |
| 33 | Terminix | 54 | 3.5★ (29) | 27 km |
| 34 | Elgin Pest Control | 54 | 4.5★ (30) | 9 km |
| 35 | Pest Extraction Solutions | 53 | 5.0★ (6) | 25 km |
| 36 | Tom's Wildlife Damage Control | 53 | 5.0★ (4) | 23 km |
| 37 | MVO Pest Control | 53 | 5.0★ (6) | 19 km |
| 38 | A-1 Pest Control Limited | 52 | 3.8★ (40) | 24 km |
| 39 | The Bug Guys | 51 | 3.7★ (3) | 19 km |
| 40 | Vancor Pest Control | 51 | 4.8★ (16) | 29 km |
| 41 | LONDON PEST & WILDLIFE | 50 | 5.0★ (5) | 20 km |
| 42 | Tom’s Neighbourhood Pest Control | 50 | 5.0★ (12) | 31 km |
| 43 | Eco-Pro Pest Services | 49 | 4.7★ (14) | 38 km |
| 44 | London Pest Control Ltd | 49 | 1.3★ (4) | 28 km |
| 45 | X force control inc | 48 | 3.7★ (3) | 24 km |
| 46 | London Bed Bug Experts | 47 | 5.0★ (3) | 37 km |
| 47 | RPM @ Home Team London | 46 | 4.5★ (42) | 24 km |
| 48 | Sparx Cleaning | 44 | 5.0★ (7) | 24 km |
Also serving St. Thomas
6 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 |
|---|---|---|
| Cannon Pest Control | 3.0★ (2) | 24 km |
| Mosquito and Pest Control Inc. London | 21 km | |
| Pest Control London Ontario | 20 km | |
| Pest Control Svc | 1.0★ (1) | 19 km |
| Pestwise | 5.0★ (1) | 28 km |
| Professional Bird & Wildlife | 3.0★ (1) | 24 km |
How we ranked St. Thomas pest control companies
We scored 48 St. Thomas 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 St. Thomas 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 St. Thomas: frequently asked questions
Who is the best pest control company in St. Thomas?
By CR Score, the highest-ranked pest control company in St. Thomas, ON is Orkin Canada Pest Control with a CR Score of 62/100. It has 4.6★ from 660 Google reviews. It is open 24/7. mosquito.buzz - London Mosquito Control (#2) and YAZ Pest Control Solutions (#3) follow. We ranked 48 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in St. Thomas?
ContractorsRanked ranks 48 pest control companies serving St. Thomas, ON. 2 of them are based in St. Thomas; the rest serve it from nearby towns. Another 6 within 40 km are listed but not ranked yet. Counts are as of November 2026.
Which pest control companies in St. Thomas are open 24/7?
13 ranked pest control companies in St. Thomas post 24/7 hours. The highest-ranked are Orkin Canada Pest Control (#1), mosquito.buzz - London Mosquito Control (#2) and YAZ Pest Control Solutions (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in St. Thomas work on weekends?
29 of 48 ranked pest control companies post Saturday hours and 28 post Sunday hours. The highest-ranked open Saturdays are Orkin Canada Pest Control (#1), mosquito.buzz - London Mosquito Control (#2) and YAZ Pest Control Solutions (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do St. Thomas pest control companies have?
The median Google rating among 48 rated pest control companies in St. Thomas is 4.8★, with a median of 43 reviews. Abell Pest Control Inc. has the most, 937 reviews, and ranks #10. 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 St. Thomas count in this ranking?
Yes, if they are within 40 km of the St. Thomas 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 St. Thomas
- November 2026: CR Scores recalculated for 48 pest control companies serving St. Thomas.
More pest control companies and St. Thomas pages
Pest control companies near St. Thomas
- Pest control companies in London, ON50 ranked
- Pest control companies in Ingersoll, ON54 ranked
- Pest control companies in Woodstock, ON40 ranked
- Pest control companies in Norfolk County, ON36 ranked
- Pest control companies in Stratford, ON29 ranked
- Pest control companies in Simcoe, ON25 ranked
- Pest control companies in Lambton Shores, ON5 ranked
- Pest control companies in New Hamburg, ON63 ranked
- Pest control companies in Brant, ON106 ranked
- Pest control companies in Paris, ON109 ranked
Other trades in St. Thomas
- Roofers in St. Thomas114 ranked
- Plumbers in St. Thomas118 ranked
- Electricians in St. Thomas86 ranked
- HVAC contractors in St. Thomas129 ranked
- General contractors in St. Thomas133 ranked
- Painters in St. Thomas52 ranked
- Landscapers in St. Thomas67 ranked
- Handymen in St. Thomas23 ranked
- Kitchen remodelers in St. Thomas79 ranked
- Bathroom remodelers in St. Thomas83 ranked
- Flooring contractors in St. Thomas71 ranked
- Tile installers in St. Thomas19 ranked
- Drywall contractors in St. Thomas9 ranked
- Concrete contractors in St. Thomas91 ranked
- Fence contractors in St. Thomas79 ranked
- Deck builders in St. Thomas85 ranked
- Siding contractors in St. Thomas46 ranked
- Window installers in St. Thomas68 ranked
- Gutter installers in St. Thomas48 ranked
- Insulation contractors in St. Thomas22 ranked
- Solar installers in St. Thomas11 ranked
- Garage door repair companies in St. Thomas27 ranked
- Foundation repair companies in St. Thomas33 ranked
- Tree services in St. Thomas24 ranked
- Masonry contractors in St. Thomas37 ranked
- Water damage restoration companies in St. Thomas69 ranked
- Home builders in St. Thomas101 ranked
- Demolition contractors in St. Thomas17 ranked
- Window cleaners in St. Thomas11 ranked
- Pressure washing companies in St. Thomas14 ranked
- Paving contractors in St. Thomas38 ranked
- Auto glass repair shops in St. Thomas40 ranked
- Septic service companies in St. Thomas24 ranked
- Excavating contractors in St. Thomas42 ranked
- Pool builders in St. Thomas50 ranked
- All contractors in St. Thomas