64/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 2,292 Google reviews, listed on Google as “Pest control service”.
Best Pest Control Companies in Grand Terrace, CA (2026)
226 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Grand Terrace: Terminix, CR Score 64/100; 4.8★ from 2,292 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Terminix Commercial, posts 24/7 hours; ranked #2 of 226.
- 7
Most-reviewed: Brooks Pest Control, 11,523 Google reviews at 4.6★, the most of 226 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
226 Grand Terrace pest control companies are ranked here by CR Score, from ten published factors. 47 are open 24/7, 151 open Saturdays and 79 open Sundays, based on posted hours. The median Google rating is 5.0★ across 226 rated businesses.
Most of this list also appears on the Pest control companies in San Bernardino ranking. See Pest control companies in San Bernardino
Top 10 pest control companies in Grand Terrace at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Terminix | 64 | 4.8★ (2,292) | San Bernardino, 4 mi away | 24/7 | Overall |
| 2 | Terminix Commercial | 64 | 4.9★ (769) | Riverside, 2 mi away | 24/7 | Emergencies |
| 3 | Dewey Pest & Termite Control | 63 | 4.8★ (783) | Colton, 2 mi away | 24/7 | — |
| 4 | Western Exterminator | 63 | 4.7★ (1,026) | Riverside, 2 mi away | 24/7 | — |
| 5 | Orkin | 62 | 4.8★ (3,667) | Riverside, 15 mi away | 24/7 | — |
| 6 | Aptive Pest Control | 61 | 4.8★ (2,220) | Redlands, 3 mi away | Sat · Evenings | — |
| 7 | Brooks Pest Control | 60 | 4.6★ (11,523) | Corona, 17 mi away | Sat · Sun · Evenings | Most reviews |
| 8 | Terminix | 60 | 5.0★ (128) | Moreno Valley, 9 mi away | 24/7 | — |
| 9 | Orkin | 60 | 4.9★ (51) | San Bernardino, 3 mi away | 24/7 | — |
| 10 | Aptive Pest Control | 60 | 4.9★ (674) | Redlands, 6 mi away | Sat · Evenings | — |
The 226 best pest control companies in Grand Terrace, 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 Riverside, 2 mi away
64/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 769 Google reviews, listed on Google as “Pest control service”.
Based in Colton, 2 mi away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.8★ from 783 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 2 mi away
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.7★ from 1,026 Google reviews, listed on Google as “Pest control service”.
#5 Orkin
Based in Riverside, 15 mi away
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.8★ from 3,667 Google reviews, listed on Google as “Pest control service”.
Based in Redlands, 3 mi away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 2,220 Google reviews, listed on Google as “Pest control service”.
Based in Corona, 17 mi away
60/100CR ScoreRanked #7 because of its Google rating and review volume: 4.6★ from 11,523 Google reviews, the most in Grand Terrace.
#8 Terminix
Based in Moreno Valley, 9 mi away
60/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 128 Google reviews, listed on Google as “Pest control service”.
#9 Orkin
Based in San Bernardino, 3 mi away
60/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “Pest control service”.
Based in Redlands, 6 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 674 Google reviews, listed on Google as “Pest control service”.
Based in Menifee, 7 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 406 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 2 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 1,289 Google reviews, listed on Google as “Pest control service”.
Based in Upland, 12 mi away
60/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 183 Google reviews, listed on Google as “Pest control service”.
#14 Gopher Stop
Based in Riverside, 6 mi away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 147 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 10 mi away
59/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.8★ from 1,716 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 4 mi away
59/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 607 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 11 mi away
59/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 754 Google reviews, listed on Google as “Pest control service”.
#18 Terminix
Based in Redlands, 8 mi away
59/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 53 Google reviews, listed on Google as “Pest control service”.
Based in Corona, 20 mi away
59/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.7★ from 9,224 Google reviews, listed on Google as “Pest control service”.
#20 Orkin
Based in Claremont, 23 mi away
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 1,367 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 8 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 414 Google reviews, listed on Google as “Pest control service”.
Based in Murrieta, 1 mi away
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 14 mi away
58/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.6★ from 240 Google reviews, listed on Google as “Pest control service”.
Based in Corona, 17 mi away
58/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 819 Google reviews, listed on Google as “Pest control service”.
Based in Chino, 22 mi away
58/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.7★ from 596 Google reviews, listed on Google as “Pest control service”.
How we ranked Grand Terrace pest control companies
We scored 226 Grand Terrace 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 Grand Terrace 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 Grand Terrace: frequently asked questions
Who is the best pest control company in Grand Terrace?
By CR Score, the highest-ranked pest control company in Grand Terrace, CA is Terminix with a CR Score of 64/100. It has 4.8★ from 2,292 Google reviews. It is open 24/7. Terminix Commercial (#2) and Dewey Pest & Termite Control (#3) follow. We ranked 226 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in Grand Terrace?
ContractorsRanked ranks 226 pest control companies serving Grand Terrace, CA. Counts are as of November 2026.
Which pest control companies in Grand Terrace are open 24/7?
47 ranked pest control companies in Grand Terrace post 24/7 hours. The highest-ranked are Terminix (#1), Terminix Commercial (#2) and Dewey Pest & Termite Control (#3). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Grand Terrace work on weekends?
151 of 226 ranked pest control companies post Saturday hours and 79 post Sunday hours. The highest-ranked open Saturdays are Terminix (#1), Terminix Commercial (#2) and Dewey Pest & Termite Control (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Grand Terrace pest control companies have?
The median Google rating among 226 rated pest control companies in Grand Terrace is 5.0★, with a median of 29 reviews. Brooks Pest Control has the most, 11,523 reviews, and ranks #7. 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 Grand Terrace count in this ranking?
Yes, if they are within 25 mi of the Grand Terrace 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 Grand Terrace
- November 2026: CR Scores recalculated for 226 pest control companies serving Grand Terrace.
- November 2026: 4 duplicate listings merged.
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