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Best 5 Pest Control Companies in Ontario, CA

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Written By Jessica Hurtault|Last Updated: February 05, 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 guide to the top 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
Dewey Pest & Termite Control Logo

Dewey Pest & Termite Control

4.8/5
Based on 134 customer reviews.

Services Offered

WaspsGeneral Pest ControlBeetlesSpidersSilverfishCockroachesFleasAntsTermitesMiceTicksFliesPreventionWildlifeBeesBed BugsMosquitos

Highlights

  • Helpful homeowner content on its website
  • Positive customer service reviews
  • Transparent pricing
1249 W Holt Blvd, Ontario, CA 909-988-7477 deweypest.com
Ecola Termite and Pest Control Services Logo

Ecola Termite and Pest Control Services

4.8/5
Based on 52 customer reviews.

Services Offered

BeesMosquitosPreventionAntsBaitingFumigationTicksSpidersBed BugsMothsTermitesSilverfishMiceBeetlesWaspsGeneral Pest ControlCockroachesGreen Pest ControlFleas

Highlights

  • Transparent pricing
  • Consistently high customer service reviews
  • Free inspections
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

General Pest ControlFliesMosquitos

Highlights

  • Lack of hidden fees
9587 Arrow Route Suite F, Rancho Cucamonga, CA 844-365-6146 protech760.com

More Local Pest Control Companies

Rumble Fish Pest Control

User Reviews: 4.7/5 

1318 Monte Vista Ave #10
Upland, CA 91786

Trips Exterminating

User Reviews: 4.7/5 

15583 Ethel St
Chino, CA 91708

Rockwell Pest Solutions

User Reviews: 4.7/5 

10574 Acacia St # D2
Rancho Cucamonga, CA 91730

Professional Pest Management

User Reviews: 4.7/5 

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

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

Eary Termite & Pest Service

User Reviews: 4.6/5 

5120 Schaefer Ave D
Chino, CA 91710

Versa-Tech Pest Management

User Reviews: 4.7/5 

981 W Arrow Hwy
San Dimas, CA 91773

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

A company's years in business can indicate how much experience it has taking care of pests in your area. You can also look at its website or peruse customer reviews to decide whether it has the right kind of experience handling the species of pests you are struggling with. If this information can't be found online, calling the company directly is a great way to learn more.

  • Reviews and Recommendations

    You can read reviews and recommendations on social media or local review sites, look up a company's Better Business Bureau (BBB) rating, or check its licensure status through the California licensing board.

  • Cost of Services and Guarantees

    Cost is probably high on your list of priorities when hiring someone for pest control. Cost can be affected influenced by the size of your house, your location, the type of pest being treated, and other factors.

    Companies will often offer free on-site estimates as part of their process, to help you decide whether it fits into your budget. You can also ask whether if your company has a satisfaction guarantee, meaning that it will continue to treat your pest problem until it is solved.

Safety and Treatment Methods

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

  • Safety

    Your pest control technician should be able to discuss the safety of any pesticides that will be used in your home. They should be able to clarify whether the pesticides are low toxicity or non-toxic; if they are not, they should explain what safety precautions they plan to use to protect you, your family, and your pets. All pesticides that pose greater than a minimum risk are required to be registered with the EPA.

  • Treatment Methods

    Pest professionals looking to reduce their reliance on chemical pesticides often follow practices such as Integrated Pest Management (IPM). Using IPM involves a series of steps:

    1. Figure out what pests are causing the problem and determine whether immediate action is required.
    2. Decide on the safest course of action.
    3. Manage the pest problem using a combination of physical, cultural, biological, and mechanical controls.
    4. Use chemical controls only if needed, and always with other methods for effective long-term pest management.
    5. Observe the results and continue with additional pest control as needed.

Common Household Pests in Ontario

Some pests are more common than others. In Ontario, common pests to be on the lookout for include the following:

  • Ants: Ants are common in basically all of California. Large carpenter ants can be even more of a problem than regular soil ants, as they can cause structural damage to your house.
  • Bed bugs: Bed bugs may be found throughout California and can lead to serious problems if left untreated. Because infestations of bed bugs are often difficult to get rid of, we recommend having professional extermination as soon as you discover the problem. Bed bugs can infest wallpaper, bedsheets, furniture, and more.
  • Spiders: These pests prefer moist, dark places and are commonly found in attics.
  • Mice: Some common signs of mice include chewed wires and droppings around your home. Mice tend to frequent attics or areas where food is stored.

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Frequently Asked Questions About Pest Control in Ontario

What causes pest infestations?

Pests make their way into your house looking for one of three things: food, water, or shelter. Some pests will enter your home simply because they have the opportunity to do so, via a foundation crack or broken screen. Some are drawn by food, either actual food sitting out or trash left out in the open. Others are searching for water, either standing water outside or puddles inside from things like leaky pipes.

How can I prevent pest infestations?

There are a number of things you can do to help prevent pest infestations. First, don't leave food out. Keep your food stored in sealed containers, and avoid leaving trash sitting around.

Second, avoid having standing water in or around your house. Repair leaks inside and eliminate places where standing water collects outdoors. Finally, seal off possible pest entrances into your home, including siding or foundation cracks.

How often should I hire a pest control professional?

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

Is pest control safe around pets?

Your pest control company will inform you how far pets need to be kept away from treated areas, and for how long. Some pesticides are low toxicity or non-toxic, but generally you'll be asked to keep pets out of the area during and for some time after application.

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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