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Best 5 Pest Control Companies in Ontario, CA

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Written By Jessica Hurtault|Last Updated: April 18, 2024

Many Ontario homeowners worry about unwelcome critters such as bed bugs and rats. Ease your pest concerns by hiring a licensed local exterminator that can stop current infestations and prevent future ones.

No matter your concerns, our list of the best pest control companies in Ontario can help.

Best Overall
5.0
  • Serves more than 2.8 million customers annually
  • Nearly 100 years in business
  • Service guarantees in 46 states
Best for Urgent Service
4.8
  • Over a century of experience
  • Same-day service if you call before noon local time
  • 30-day money-back guarantee

Best 5 Ontario Pest Control Companies

Orkin Logo

Orkin

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4.8/5
Based on 429 customer reviews.

Services Offered

PreventionTicksBaitingSilverfishMiceWaspsGeneral Pest ControlTermitesCockroachesBed BugsAntsMosquitosWildlifeSpiders

Highlights

  • Continuous highly praised customer service reports
  • Educational web content
  • Transparent pricing
845 S Oak Park Rd, Covina, CA 626-460-7305 orkin.comRead More: Orkin Review
Ecola Termite and Pest Control Services Logo

Ecola Termite and Pest Control Services

4.7/5
Based on 52 customer reviews.

Services Offered

BaitingGeneral Pest ControlBeesBeetlesSilverfishMiceTicksSpidersWaspsGreen Pest ControlFleasMosquitosTermitesAntsBed BugsFumigationPreventionMothsCockroaches

Highlights

  • Free inspection policy
  • Transparent pricing
  • Commitment to customer education
10944 Almond Ave, Fontana, CA 951-782-2847 ecolatermite.com
ProTech Termite and Pest Elimination Logo

ProTech Termite and Pest Elimination

4.7/5
Based on 60 customer reviews.

Services Offered

MosquitosGeneral Pest ControlFlies

Highlights

  • Transparent pricing
9587 Arrow Route Suite F, Rancho Cucamonga, CA 844-365-6146 protech760.com
Rumble Fish Pest Control Logo

Rumble Fish Pest Control

4.7/5
Based on 45 customer reviews.

Services Offered

CockroachesGreen Pest ControlFleasMiceWaspsGeneral Pest ControlMosquitosTermitesBeesBed Bugs

Highlights

  • Educational web content
  • No-cost inspections
  • Lack of hidden fees
1318 Monte Vista Ave #10, Upland, CA 909-218-7447 rumblefishinc.com

More Local Pest Control Companies

Trips Exterminating

User Reviews: 4.7/5 

15583 Ethel St
Chino, CA 91708

Dewey Pest & Termite Control

User Reviews: 4.7/5 

1249 W Holt Blvd
Ontario, CA 91762

Gallant Termite & Pest Control

User Reviews: 4.6/5 

9521 Business Center Dr #105
Rancho Cucamonga, CA 91730

Quality Commercial Pest Control

User Reviews: 4.6/5 

10700 Jersey Blvd Suite 760
Rancho Cucamonga, CA 91730

R&D Pest Services Inc

User Reviews: 4.6/5 

9320 Santa Anita Ave Suite 105
Rancho Cucamonga, CA 91730

Rockwell Pest Solutions

User Reviews: 4.6/5 

10574 Acacia St # D2
Rancho Cucamonga, CA 91730

Eary Termite & Pest Service

User Reviews: 4.5/5 

5120 Schaefer Ave D
Chino, CA 91710

Versa-Tech Pest Management

User Reviews: 4.7/5 

981 W Arrow Hwy
San Dimas, CA 91773

Professional Pest Management

User Reviews: 4.4/5 

12672 Limonite Ave STE #3E-414
Eastvale, CA 92880

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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Facts about Ontario
Average Max Temp:77°F
Average Min Temp:57°F
Average Daily Sunlight:72%
Average Annual Snowfall:0"
Average Monthly Precipitation:0.59"
Average Monthly Pest Visit:$239

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This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

How To Choose a Pest Control Company

The most important step is choosing the best pest control company for the job. Along with a company's qualifications and treatment methods, you may also consider how long it has been in business and what the reviews are like. Last but not least, you'll likely want to look at the cost of services.

Below, we discuss each of these factors in more detail.

  • Does the company have a valid license and permits to perform pest control?

    According to the United States Environmental Protection Agency (EPA), all pesticide applicators and their supervisors are required to be certified at the state level. The EPA sets minimum standards of competency, but all California pesticide applicators need to be licensed through the proper state regulatory agencies.

  • Is the company a member of any professional organizations?

    Pest control companies can obtain optional certifications from QualityPro or similar trade organizations. These certifications can help you assess the quality of a company's products. For example, the GreenPro Service Certification is given to companies that use comprehensive and effective pest control treatment that is safer for people and the environment.

    There are several professional organizations that a pest control company can belong to. Membership in organizations such as the National Pest Management Association (NPMA) or state-level organizations is not required, but helps verify a company's reputability. Membership in the NPMA gives companies access to education, resources, and a network of professionals with whom to discuss practices and methods.

Professional Experience and Specialties

Browsing a pest control company's website can tell you how long it has been in business and what kind of pests it specializes in eliminating. Online reviews can also provide some insight into a company's experience dealing with a certain type of pest. If this information isn't available online, you can try contacting the company directly.

  • Reviews and Recommendations

    You can look up a company's Better Business Bureau (BBB) rating, browse reviews on social media or local review sites, or check the standing of its license via the California licensing board.

  • Cost of Services and Guarantees

    The cost of pest control can vary based on things like the size of your house, the type of pest being treated, your location, and other factors.

    When thinking about the cost of services, you should try to determine whether a company offers free on-site estimates as part of its services. This can inform you whether the company fits into your budget. Also look into a company's guarantees: If the problem is not fixed, or if it returns, does the company promise to offer additional treatments until the issue is resolved satisfactorily?

Safety and Treatment Methods

Safety is an important consideration when deciding on a pest control company, and you might prefer a provider who employs more natural, environmentally friendly treatment plans.

  • Safety

    Ask your pest control provider if the chemicals they're using are low toxicity or non-toxic, and if not, what sort of precautionary measures they will have in place. Any pesticides that are not minimum-risk chemicals need to be registered with the EPA. Your pest technician should be able to supply information about all of the pesticides they plan on using.

  • Treatment Methods

    You can ask if your pest technician will begin with lower-toxicity and more eco-friendly methods before trying harsher chemicals.

    Many companies are now using Integrated Pest Management (IPM) to treat pest infestations with minimal personal or environmental risk. The steps of IPM are as follows:

    1. Identify the source of the pest problem and determine if immediate action is needed.
    2. Determine the best and safest course of action.
    3. Manage the pest problem using a combination of mechanical, cultural, biological, and physical controls.
    4. Use chemical controls only when absolutely necessary, and always with other techniques for effective long-term pest management.
    5. Evaluate outcomes and provide additional pest control as needed.

Common Household Pests in Ontario

You might run into some pests more often in Ontario. Certain ones to keep an eye out for include these:

  • Ants: Ants are common in basically all of California. Large carpenter ants can be even more of a problem than normal soil ants, because they can cause structural damage to your house.
  • Bed bugs: Bed bugs can be found throughout California, and they can lead to major problems if left untreated. Because infestations of bed bugs can be difficult to get rid of, we recommend hiring a professional exterminator as soon as you discover the problem. These pests can infest bedsheets, furniture, wallpaper, and more.
  • Spiders: You may encounter spiders in your attic or other damp, dark areas. While most spiders are harmless and pose no threat to humans, you don't want an infestation of them in your house.
  • Mice: If you have a mouse infestation, you might start noticing droppings around your house, or things like chewed wires. You can often find mice in places where food is kept or in attics.

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Frequently Asked Questions About Pest Control in Ontario

What causes pest infestations?

Pest infestations happen when pests enter your house looking for something, usually food, water, or shelter. Pests may seek out and eat food or trash that is left out. Some could also be drawn by standing water collecting outside (from rain collecting in one spot) or inside (from leaky pipes). Pests might also come into your home looking for shelter. They can get in through weak spots such as broken screens or foundation cracks.

How can I prevent pest infestations?

One method for preventing pest infestations is to seal off possible entrances into your home. These include things like cracks in your siding or foundation. Second, avoid leaving food out for pests. This means keeping food in sealed containers as well as not leaving trash out. Lastly, reduce standing water in and around your home. Work to reduce places where water collects outside, and repair leaks inside.

How often do I need to hire a pest control professional?

Generally, it's recommended that you get your home treated for pests approximately once a year, more often if you have an active infestation. Your pest professional will ultimately be the best person to recommend a treatment schedule for you.

Do I need to worry about my pets during the pest control process?

Your pest control expert will inform you how far your pets should be kept away from treated areas, and for how long. Some pesticides are low toxicity or non-toxic, but in the vast majority of cases you'll be asked to keep pets away from the area during and for some time after application.

How long does it take for pest control to work?

How long it takes pest control to work depends on the problem and treatment. For example, if a wasp nest is removed, you should see the results immediately. In other cases, it may take anywhere from one to two days to up to six weeks for significant pest control results to be noticeable. Some pest infestations may require your technician to make multiple trips to your house.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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