64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,136 Google reviews, listed on Google as “Pest control service”.
Best Pest Control Companies in Gaithersburg, MD (2026)
281 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Gaithersburg: Green Pest Services, CR Score 64/100; 4.9★ from 1,136 Google reviews; open 7 days a week.
- 2
Best for emergencies (open 24/7): Orkin, posts 24/7 hours; ranked #2 of 281.
- 15
Most-reviewed: Green Pest Services - Chantilly, 6,759 Google reviews at 4.8★, the most of 281 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
281 Gaithersburg pest control companies are ranked here by CR Score, from ten published factors. 89 are open 24/7, 204 open Saturdays and 142 open Sundays, based on posted hours. The median Google rating is 4.8★ across 281 rated businesses.
Top 10 pest control companies in Gaithersburg at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Green Pest Services | 64 | 4.9★ (1,136) | Gaithersburg | Sat · Sun | Overall |
| 2 | Orkin | 64 | 4.6★ (1,230) | Gaithersburg | 24/7 | Emergencies |
| 3 | Terminix | 62 | 4.9★ (148) | Gaithersburg | 24/7 | — |
| 4 | My Pest Pros | 62 | 5.0★ (940) | Vienna, 15 mi away | 24/7 | — |
| 5 | Green Pest Services | 62 | 4.9★ (2,353) | Arlington, 18 mi away | 24/7 | — |
| 6 | Frontline Pest and Termite of Rockville | 61 | 4.8★ (862) | Rockville, 5 mi away | Sat · Sun · Evenings | — |
| 7 | Arterix Pest Control, LLC | 61 | 4.9★ (225) | Rockville, 7 mi away | 24/7 | — |
| 8 | Petti Pest Control | 61 | 5.0★ (1,409) | Leesburg, 19 mi away | 24/7 | — |
| 9 | Green Pest Services | 61 | 4.8★ (822) | Bethesda, 12 mi away | 24/7 | — |
| 10 | My Pest Pros | 61 | 5.0★ (342) | Bowie, 12 mi away | 24/7 | — |
The 281 best pest control companies in Gaithersburg, 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.
#2 Orkin
Based in Gaithersburg
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.6★ from 1,230 Google reviews, listed on Google as “Pest control service”.
#3 Terminix
Based in Gaithersburg
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 148 Google reviews, listed on Google as “Pest control service”.
#4 My Pest Pros
Based in Vienna, 15 mi away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 940 Google reviews, listed on Google as “Pest control service”.
Based in Arlington, 18 mi away
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 2,353 Google reviews, listed on Google as “Pest control service”.
Based in Rockville, 5 mi away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 862 Google reviews, listed on Google as “Pest control service”.
Based in Rockville, 7 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 225 Google reviews, listed on Google as “Pest control service”.
Based in Leesburg, 19 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 1,409 Google reviews, listed on Google as “Pest control service”.
Based in Bethesda, 12 mi away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 822 Google reviews, listed on Google as “Pest control service”.
#10 My Pest Pros
Based in Bowie, 12 mi away
61/100CR ScoreRanked #10 because of its Google rating and trade focus: 5.0★ from 342 Google reviews, listed on Google as “Pest control service”.
Based in Ashburn, 15 mi away
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 885 Google reviews, listed on Google as “Pest control service”.
Based in Gaithersburg
61/100CR ScoreRanked #12 because of its Google rating and review volume: 4.6★ from 2,638 Google reviews.
Based in Washington, D.C., 14 mi away
60/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 707 Google reviews, listed on Google as “Pest control service”.
Based in Fairfax, 21 mi away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 1,307 Google reviews, listed on Google as “Pest control service”.
Based in Chantilly, 22 mi away
60/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 6,759 Google reviews, listed on Google as “Pest control service”.
Based in Leesburg, 20 mi away
60/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 978 Google reviews, listed on Google as “Pest control service”.
#17 My Pest Pros
Based in Fairfax, 21 mi away
60/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 841 Google reviews, listed on Google as “Pest control service”.
Based in Frederick, 20 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 1,306 Google reviews, listed on Google as “Pest control service”.
#19 Terminix
Based in Sterling, 17 mi away
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 845 Google reviews, listed on Google as “Pest control service”.
#20 Orkin
Based in Gaithersburg
59/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 21 Google reviews, listed on Google as “Pest control service”.
#21 Orkin
Based in Ashburn, 17 mi away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.6★ from 914 Google reviews, listed on Google as “Pest control service”.
#22 Terminix
Based in Frederick, 20 mi away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.7★ from 956 Google reviews, listed on Google as “Pest control service”.
Based in Ashburn, 14 mi away
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 1,636 Google reviews, listed on Google as “Pest control service”.
Based in Sterling, 16 mi away
59/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 914 Google reviews, listed on Google as “Pest control service”.
Based in Baltimore, 4 mi away
59/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 21 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 281 ranked pest control companies here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Better Termite & Pest Control | 58 | 5.0★ (284) | 15 mi |
| 27 | Better Termite & Pest Control | 58 | 4.9★ (1,783) | 24 mi |
| 28 | Mosquito Joe of Montgomery County | 58 | 4.7★ (189) | In Gaithersburg |
| 29 | ClearDefense Pest Control | 58 | 5.0★ (1,648) | 21 mi |
| 30 | Brody Brothers Pest Control in Rockville | 58 | 4.9★ (578) | 5 mi |
| 31 | Orkin | 58 | 4.7★ (662) | 22 mi |
| 32 | Sure Derwood Pest Control | 58 | 5.0★ (8) | In Gaithersburg |
| 33 | Environmental Pest Control | 58 | 4.9★ (2,014) | 4 mi |
| 34 | Moxie Pest Control | 58 | 4.8★ (3,524) | 21 mi |
| 35 | Guardian Pest Defense Experts | 58 | 5.0★ (7) | In Gaithersburg |
| 36 | American Pest | 58 | 4.7★ (1,930) | 22 mi |
| 37 | American Pest | 58 | 4.9★ (759) | 22 mi |
| 38 | American Pest | 58 | 5.0★ (767) | 24 mi |
| 39 | Critter Control | 58 | 4.5★ (214) | In Gaithersburg |
| 40 | Moxie Pest Control | 58 | 4.7★ (5,651) | 22 mi |
| 41 | Amber Pest Control | 57 | 5.0★ (64) | 16 mi |
| 42 | Orkin | 57 | 4.5★ (1,718) | 24 mi |
| 43 | Sure Shot Pest Control | 57 | 5.0★ (187) | 24 mi |
| 44 | Absolute Home and Pest Solutions | 57 | 4.3★ (108) | 2 mi |
| 45 | Aptive Pest Control | 57 | 4.6★ (5,826) | 22 mi |
| 46 | Potomac Pest & Termite Control | 57 | 5.0★ (151) | 10 mi |
| 47 | Antex Pro | 57 | 4.7★ (69) | 14 mi |
| 48 | Pestechs Pest Control | 57 | 5.0★ (256) | 7 mi |
| 49 | Destroy Pest Control | 57 | 4.8★ (862) | 24 mi |
| 50 | Skedaddle Humane Wildlife Control | 57 | 4.6★ (62) | 7 mi |
Also serving Gaithersburg
20 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 |
|---|---|---|
| Alpha Ashburn Pest Control | 5.0★ (2) | 17 mi |
| Bed Bug Exterminator Washington DC | 5.0★ (2) | 19 mi |
| Bee 911 Pest Control | 5.0★ (2) | 14 mi |
| Benware Termite Control | 5.0★ (2) | 7 mi |
| Blades of Green | 1.0★ (2) | 18 mi |
| Capitol Mosquito of Montgomery County | 5.0★ (2) | 2 mi |
| Eco Friendly Pest Control Services in Arlington | 5.0★ (2) | 19 mi |
| Eco Friendly Pest Control Services in Rockville | 5.0★ (2) | 5 mi |
| Eco Friendly Pest Management in Frederick | 5.0★ (2) | 22 mi |
| Elite Herndon Pest Control | 5.0★ (2) | 18 mi |
| Guilford Pest Control | 5.0★ (2) | 17 mi |
| J & L PEST CONTROL SERVICES | In Gaithersburg | |
| LCS Pest Management | 5.0★ (2) | 13 mi |
| Leader Frederick Pest Control | 5.0★ (2) | 22 mi |
| Life is Green Landscaping & Services LLC | 5.0★ (29) | In Gaithersburg |
| Local Pest Control Services in Gaithersburg | 5.0★ (2) | In Gaithersburg |
| Mosquito Hero | In Gaithersburg | |
| Quality Sterling Pest Control | 5.0★ (2) | 15 mi |
| The Bug Guys - Bed Bug Removal | In Gaithersburg | |
| The Mice Guys | In Gaithersburg |
How we ranked Gaithersburg pest control companies
We scored 281 Gaithersburg 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 Gaithersburg 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 Gaithersburg: frequently asked questions
Who is the best pest control company in Gaithersburg?
By CR Score, the highest-ranked pest control company in Gaithersburg, MD is Green Pest Services with a CR Score of 64/100. It has 4.9★ from 1,136 Google reviews. It is open 7 days a week. Orkin (#2) and Terminix (#3) follow. We ranked 281 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in Gaithersburg?
ContractorsRanked ranks 281 pest control companies serving Gaithersburg, MD. 9 of them are based in Gaithersburg; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of November 2026.
Which pest control companies in Gaithersburg are open 24/7?
89 ranked pest control companies in Gaithersburg post 24/7 hours. The highest-ranked are Orkin (#2), Terminix (#3) and My Pest Pros (#4). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Gaithersburg work on weekends?
204 of 281 ranked pest control companies post Saturday hours and 142 post Sunday hours. The highest-ranked open Saturdays are Green Pest Services (#1), Orkin (#2) and Terminix (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Gaithersburg pest control companies have?
The median Google rating among 281 rated pest control companies in Gaithersburg is 4.8★, with a median of 44 reviews. Green Pest Services - Chantilly has the most, 6,759 reviews, and ranks #15. 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 Gaithersburg count in this ranking?
Yes, if they are within 25 mi of the Gaithersburg 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 Gaithersburg
- November 2026: CR Scores recalculated for 281 pest control companies serving Gaithersburg.
- November 2026: 3 duplicate listings merged.
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