62/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 4,133 Google reviews, the most in Washington.
Best Pest Control Companies in Washington, MO (2026)
42 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Washington: Orkin, CR Score 62/100; 4.8★ from 4,133 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Rottler Pest Solutions, posts 24/7 hours; ranked #2 of 42.
- 5
Most-reviewed: Amco Ranger Termite & Pest Solutions, 1,364 Google reviews at 4.9★, the most of 42 ranked after Orkin; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
42 Washington pest control companies are ranked here by CR Score, from ten published factors. 9 are open 24/7, 28 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 5.0★ across 42 rated businesses.
Top 10 pest control companies in Washington at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Orkin | 62 | 4.8★ (4,133) | Weldon Spring, 22 mi away | 24/7 | Overall |
| 2 | Rottler Pest Solutions | 62 | 4.9★ (1,199) | Wentzville, 19 mi away | 24/7 | Emergencies |
| 3 | Rottler Pest Solutions | 61 | 4.9★ (1,148) | Chesterfield, 22 mi away | 24/7 | — |
| 4 | Mosquito Squad of West St. Louis County | 60 | 4.9★ (369) | Lake Saint Louis, 18 mi away | 24/7 | — |
| 5 | Amco Ranger Termite & Pest Solutions | 57 | 4.9★ (1,364) | O'Fallon, 24 mi away | Sat | Most reviews |
| 6 | Heartland Pest and Termite Control | 56 | 5.0★ (45) | Wildwood, 21 mi away | 24/7 | — |
| 7 | Pure Pest | 56 | 4.9★ (75) | O'Fallon, 23 mi away | 24/7 | — |
| 8 | Salvo's Pest & Termite Control, Inc | 55 | 5.0★ (235) | O'Fallon, 23 mi away | Sat | — |
| 9 | Around the Clock Pest Control | 55 | 4.9★ (69) | St. Louis, 14 mi away | Sat | — |
| 10 | Spring Green | 55 | 4.7★ (541) | O'Fallon, 24 mi away | Sat | — |
The 42 best pest control companies in Washington, 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 Wentzville, 19 mi away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 1,199 Google reviews, listed on Google as “Pest control service”.
Based in Chesterfield, 22 mi away
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 1,148 Google reviews, listed on Google as “Pest control service”.
Based in Lake Saint Louis, 18 mi away
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 369 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 24 mi away
57/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 1,364 Google reviews, listed on Google as “Pest control service”.
Based in Wildwood, 21 mi away
56/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Pest control service”.
#7 Pure Pest
Based in O'Fallon, 23 mi away
56/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 75 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 23 mi away
55/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 235 Google reviews, listed on Google as “Pest control service”.
Based in St. Louis, 14 mi away
55/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “Pest control service”.
#10 Spring Green
Based in O'Fallon, 24 mi away
55/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 541 Google reviews, listed on Google as “Pest control service”.
Based in Saint Charles, 23 mi away
55/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 684 Google reviews, listed on Google as “Pest control service”.
#12 Evo Pest Control
Based in Ellisville, 22 mi away
54/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 170 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 20 mi away
54/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 197 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 25 mi away
54/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 23 mi away
53/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 198 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 24 mi away
53/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 22 mi away
53/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 22 mi away
53/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Pest control service”.
Based in Ellisville, 23 mi away
53/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 159 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 20 mi away
53/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Pest control service”.
Based in O'Fallon, 15 mi away
53/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 15 Google reviews, listed on Google as “Pest control service”.
Based in Wildwood, 21 mi away
52/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 278 Google reviews, listed on Google as “Insulation contractor”.
Based in O'Fallon, 24 mi away
52/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 121 Google reviews, listed on Google as “Pest control service”.
#24 Bug Out
Based in Saint Peters, 24 mi away
52/100CR ScoreRanked #24 because of its Google rating and review volume: 5.0★ from 185 Google reviews.
Based in O'Fallon, 24 mi away
51/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.2★ from 19 Google reviews, listed on Google as “Pest control service”.
All 42 pest control companies
#1 to #25 are shown in full above. Here are #26 to #42, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | VEREK | 51 | 5.0★ (20) | 22 mi |
| 27 | O'Fallon Pest Control | 51 | 4.2★ (10) | 23 mi |
| 28 | Wildwood Pest Control | 51 | 5.0★ (3) | 20 mi |
| 29 | SEMO Termite & Pest Control | 50 | 5.0★ (7) | 12 mi |
| 30 | Arch Pest Services | 50 | 5.0★ (12) | 24 mi |
| 31 | Eagle Termite & Pest Control | 50 | 5.0★ (4) | 18 mi |
| 32 | Humane Wildlife Solutions LLC | 49 | 4.9★ (87) | 14 mi |
| 33 | Pezz Pest Control | 49 | 4.7★ (46) | 25 mi |
| 34 | 2 Nice Guys Termite & Pest Control | 49 | 5.0★ (6) | 24 mi |
| 35 | Urban Crawl Pest Solutions | 49 | 5.0★ (14) | 23 mi |
| 36 | M & M Lawncare and Landscape | 48 | 4.8★ (67) | 17 mi |
| 37 | Remedy Pest Control | 48 | 3.7★ (20) | 20 mi |
| 38 | Thrive Lawn Care | 47 | 5.0★ (15) | 21 mi |
| 39 | Antimite | 46 | 4.7★ (3) | 24 mi |
| 40 | Ryan Lawn & Tree | 46 | 4.7★ (159) | 22 mi |
| 41 | New Leaf Lawn & Landscape LLC | 43 | 4.8★ (23) | 23 mi |
| 42 | Green Rx Lawn & Pest Solutions | 42 | 3.7★ (22) | 23 mi |
Also serving Washington
6 more pest control companies within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Bay's Termite & Pest Control | 5.0★ (1) | 16 mi |
| Bed Bug St Louis provides expert, family-safe bed bug removal | 5.0★ (1) | 18 mi |
| Eco Friendly Pest Control Services in O'Fallon | 5.0★ (2) | 24 mi |
| Freedom Pest Control | 5.0★ (1) | 24 mi |
| Pezz Pest Control Wentzville | 5.0★ (1) | 20 mi |
| Premier Pest Management, LLC | 24 mi |
How we ranked Washington pest control companies
We scored 42 Washington 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 Washington 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 Washington: frequently asked questions
Who is the best pest control company in Washington?
By CR Score, the highest-ranked pest control company in Washington, MO is Orkin with a CR Score of 62/100. It has 4.8★ from 4,133 Google reviews. It is open 24/7. Rottler Pest Solutions (#2) and Rottler Pest Solutions (#3) follow. We ranked 42 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in Washington?
ContractorsRanked ranks 42 pest control companies serving Washington, MO. Another 6 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which pest control companies in Washington are open 24/7?
9 ranked pest control companies in Washington post 24/7 hours. The highest-ranked are Orkin (#1), Rottler Pest Solutions (#2) and Rottler Pest Solutions (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Washington work on weekends?
28 of 42 ranked pest control companies post Saturday hours and 13 post Sunday hours. The highest-ranked open Saturdays are Orkin (#1), Rottler Pest Solutions (#2) and Rottler Pest Solutions (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Washington pest control companies have?
The median Google rating among 42 rated pest control companies in Washington is 5.0★, with a median of 57 reviews. Orkin has the most, 4,133 reviews, and ranks #1. 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 Washington count in this ranking?
Yes, if they are within 25 mi of the Washington city center, 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 Washington
- November 2026: CR Scores recalculated for 42 pest control companies serving Washington.
More pest control companies and Washington pages
Pest control companies near Washington
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- Pest control companies in Saint Peters, MO120 ranked
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