65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 3,667 Google reviews, listed on Google as “Pest control service”.
Best Pest Control Companies in Norco, CA (2026)
429 pest control companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Norco: Orkin, CR Score 65/100; 4.8★ from 3,667 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Mosquito Squad Plus of Rancho Cucamonga, posts 24/7 hours; ranked #4 of 429.
- 2
Most-reviewed: Brooks Pest Control, 11,523 Google reviews at 4.6★, the most of 429 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
429 Norco pest control companies are ranked here by CR Score, from ten published factors. 101 are open 24/7, 306 open Saturdays and 167 open Sundays, based on posted hours. The median Google rating is 4.9★ across 429 rated businesses.
Top 10 pest control companies in Norco at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Orkin | 65 | 4.8★ (3,667) | Riverside, 4 mi away | 24/7 | Overall |
| 2 | Brooks Pest Control | 64 | 4.6★ (11,523) | Corona, 3 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Aptive Pest Control | 62 | 4.7★ (9,224) | Corona, 5 mi away | Sat · Evenings | — |
| 4 | Mosquito Squad Plus of Rancho Cucamonga | 61 | 4.9★ (183) | Upland, 5 mi away | 24/7 | Emergencies |
| 5 | Terminix Commercial | 61 | 4.9★ (769) | Riverside, 13 mi away | 24/7 | — |
| 6 | HomeShield Pest Control | 61 | 5.0★ (819) | Corona, 3 mi away | Sat · Evenings | — |
| 7 | Western Exterminator | 61 | 4.7★ (596) | Chino, 9 mi away | 24/7 | — |
| 8 | Terminix | 61 | 4.8★ (2,292) | San Bernardino, 19 mi away | 24/7 | — |
| 9 | Bull's Eye Pest Control | 61 | 5.0★ (671) | Corona, 5 mi away | Sat · Evenings | — |
| 10 | Western Exterminator | 60 | 4.7★ (1,026) | Riverside, 13 mi away | 24/7 | — |
The 429 best pest control companies in Norco, 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 Corona, 3 mi away
64/100CR ScoreRanked #2 because of its Google rating and review volume: 4.6★ from 11,523 Google reviews, the most in Norco.
Based in Corona, 5 mi away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 9,224 Google reviews, listed on Google as “Pest control service”.
Based in Upland, 5 mi away
61/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 183 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 13 mi away
61/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 769 Google reviews, listed on Google as “Pest control service”.
Based in Corona, 3 mi away
61/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 819 Google reviews, listed on Google as “Pest control service”.
Based in Chino, 9 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ from 596 Google reviews, listed on Google as “Pest control service”.
#8 Terminix
Based in San Bernardino, 19 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 2,292 Google reviews, listed on Google as “Pest control service”.
Based in Corona, 5 mi away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 671 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 13 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.7★ from 1,026 Google reviews, listed on Google as “Pest control service”.
#11 Orkin
Based in Claremont, 15 mi away
60/100CR ScoreRanked #11 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, 4 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.6★ from 240 Google reviews, listed on Google as “Pest control service”.
Based in Yorba Linda, 11 mi away
60/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.7★ from 7,199 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 6 mi away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 754 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 6 mi away
60/100CR 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 Fontana, 6 mi away
60/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.7★ from 1,940 Google reviews, listed on Google as “Pest control service”.
Based in Colton, 17 mi away
60/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.8★ from 783 Google reviews, listed on Google as “Pest control service”.
Based in La Mesa, 3 mi away
60/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 52 Google reviews, listed on Google as “Pest control service”.
#19 Orkin
Based in Anaheim, 16 mi away
60/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 460 Google reviews, listed on Google as “Pest control service”.
#20 Orkin
Based in Anaheim, 25 mi away
60/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 3,213 Google reviews, listed on Google as “Pest control service”.
Based in Riverside, 4 mi away
60/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Pest control service”.
Based in Ontario, 12 mi away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 244 Google reviews, listed on Google as “Pest control service”.
#23 Pest Hero
Based in Jurupa Valley, 2 mi away
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 54 Google reviews, listed on Google as “Pest control service”.
#24 Terminix
Based in Laguna Hills, 24 mi away
59/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 1,167 Google reviews, listed on Google as “Pest control service”.
Based in Norco
59/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 11 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 429 ranked pest control companies here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Preventive Pest Control | 59 | 4.9★ (548) | 10 mi |
| 27 | the bugman | 58 | 4.9★ (2,576) | 18 mi |
| 28 | Orkin | 58 | 4.8★ (387) | 19 mi |
| 29 | Truly Nolen Pest & Termite Control | 58 | 4.8★ (90) | 4 mi |
| 30 | Trips Exterminating | 58 | 5.0★ (112) | 9 mi |
| 31 | Bluedot Pest | 58 | 5.0★ (162) | 5 mi |
| 32 | Truly Nolen Pest & Termite Control | 58 | 4.8★ (406) | 13 mi |
| 33 | Compass Pest Management | 58 | 4.9★ (876) | 6 mi |
| 34 | PURCOR Pest Solutions | 58 | 4.9★ (562) | 24 mi |
| 35 | Terminix | 58 | 5.0★ (128) | 17 mi |
| 36 | Terminix | 58 | 5.0★ (52) | 11 mi |
| 37 | Gopher Stop | 58 | 5.0★ (147) | 12 mi |
| 38 | Mathews Inspection Group | 58 | 4.8★ (238) | 12 mi |
| 39 | Preventive Pest Control | 58 | 4.9★ (505) | 12 mi |
| 40 | Treebark Termite and Pest Control | 58 | 4.6★ (34) | 6 mi |
| 41 | Aptive Pest Control | 58 | 4.8★ (2,220) | 18 mi |
| 42 | HomeShield Pest Control | 58 | 4.9★ (2,790) | 22 mi |
| 43 | CURA Termite & Pest Control - West Covina | 58 | 5.0★ (252) | 24 mi |
| 44 | Orkin | 58 | 4.8★ (462) | 23 mi |
| 45 | Orkin | 58 | 4.8★ (306) | 20 mi |
| 46 | Terminix | 58 | 4.9★ (389) | 24 mi |
| 47 | Mira Loma Pest Control | 58 | 5.0★ (12) | 5 mi |
| 48 | Mosquito Squad of Orange County | 58 | 4.9★ (320) | 17 mi |
| 49 | Buzz Off Pest Prevention | 57 | 5.0★ (45) | 13 mi |
| 50 | Trident Pest Control | 57 | 5.0★ (301) | 19 mi |
Also serving Norco
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 |
|---|---|---|
| Affordable Termite Control In Anaheim | 5.0★ (2) | 14 mi |
| Apex Shield Exterminators | 4.5★ (2) | 16 mi |
| Bio Pest Control Shield | 4.5★ (2) | 13 mi |
| Crest Pest Control | 5.0★ (2) | 14 mi |
| Eazell pest services | 5.0★ (2) | 8 mi |
| Eco Pest Control of Anaheim | 5.0★ (2) | 12 mi |
| EcoZone Pest Control | 5.0★ (2) | 11 mi |
| Everguard Exterminators | 3.0★ (2) | 9 mi |
| GreenSafe Pest Management | 4.5★ (2) | 4 mi |
| Hunting Pest Services | 5.0★ (2) | 15 mi |
| Impressive Exterminating | 5.0★ (2) | 12 mi |
| MAD Termite Control | 5.0★ (1) | In Norco |
| MadCo Pest-a-Side | 5.0★ (2) | 16 mi |
| Mosquito Defenders LLC | 5.0★ (2) | 13 mi |
| NatureSafe Pest Solutions | 5.0★ (2) | In Norco |
| Nexa Guard Pest Services | 4.5★ (2) | 14 mi |
| Pennington Pest Elimination | 5.0★ (2) | 16 mi |
| Pest Control Guardian Plus | 4.5★ (2) | 10 mi |
| Professional Pest Management | 5.0★ (2) | 9 mi |
| The Bug Solution | 5.0★ (2) | 16 mi |
How we ranked Norco pest control companies
We scored 429 Norco 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 Norco 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 Norco: frequently asked questions
Who is the best pest control company in Norco?
By CR Score, the highest-ranked pest control company in Norco, CA is Orkin with a CR Score of 65/100. It has 4.8★ from 3,667 Google reviews. It is open 24/7. Brooks Pest Control (#2) and Aptive Pest Control (#3) follow. We ranked 429 pest control companies on ten factors, last updated November 3, 2026.
How many pest control companies are there in Norco?
ContractorsRanked ranks 429 pest control companies serving Norco, CA. 1 of them is based in Norco; 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 Norco are open 24/7?
101 ranked pest control companies in Norco post 24/7 hours. The highest-ranked are Orkin (#1), Mosquito Squad Plus of Rancho Cucamonga (#4) and Terminix Commercial (#5). Hours come from each business's Google listing as of November 2026, so call to confirm.
Which pest control companies in Norco work on weekends?
306 of 429 ranked pest control companies post Saturday hours and 167 post Sunday hours. The highest-ranked open Saturdays are Orkin (#1), Brooks Pest Control (#2) and Aptive Pest Control (#3). Posted hours are office hours; crews may book weekend jobs separately.
What Google rating do Norco pest control companies have?
The median Google rating among 429 rated pest control companies in Norco is 4.9★, with a median of 28 reviews. Brooks Pest Control has the most, 11,523 reviews, and ranks #2. 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 Norco count in this ranking?
Yes, if they are within 25 mi of the Norco 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 Norco
- November 2026: CR Scores recalculated for 429 pest control companies serving Norco.
- November 2026: 9 duplicate listings merged.
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