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Last Updated: February 25, 2025
Diamond Bar is home to 54 thousand people and, much to our dismay, a countless amount of pests. Without a pest control routine in place, the chance of severe infestation is high.
There are many exterminators to select from, which makes finding the right one for your needs difficult. That’s why we’ve put together a list of the best pest control companies in Diamond Bar. Keep reading to learn more about each exterminator.
Lack of hidden fees
Helpful homeowner content on its website
Proactive solutions for pest control
Positive customer service reviews
Free inspections
Services Offered
Free inspection policy
Preventative pest control services
Transparent pricing
Commitment to customer education
Consistently high customer service reviews
Services Offered
Our Rating
User Rating
Educational web content
Transparent pricing
Free inspections
Positive customer service reviews
Services Offered
Our Rating
User Rating
No-cost inspections
Transparent pricing
Educational web content
Consistently high customer service reviews
Services Offered
Our Rating
User Rating
Transparent pricing
Commitment to customer education
No-cost inspections
Proactive approach to pest control
Positive customer service reviews
Services Offered
Our Rating
User Rating
Helpful homeowner content on its website
Reliable appointment windows
Preventative pest control services
Reviews praise customer service
Free inspections
Transparent pricing
Services Offered
Our Rating
User Rating
Continuous highly praised customer service reports
Free inspection policy
Helpful homeowner content on its website
Transparent pricing
Services Offered
Our Rating
User Rating
Commitment to customer education
Transparent pricing
Positive customer service reviews
Services Offered
Our Rating
User Rating
Offerings of preventative treatments
Lack of hidden fees
Reviews praise customer service
Free inspections
Helpful homeowner content on its website
Services Offered
Our Rating
User Rating
Free inspections
Offerings of preventative treatments
Commitment to customer education
Transparent pricing
Positive customer service reviews
Services Offered
Today's Homeowner looks at dozens of datapoints on pest control companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:
Today's Homeowner’s experts narrowed down the top pest control companies by comparing costs, customer reviews, state availability, and more.
Here’s how they ranked:
Terminix is headquartered in Memphis, Tennessee, but it has branches in 45 states and several countries around the globe. It has also been in the industry for almost 100 years. With this experience, it’s easy to see why Terminix is a top choice for many homeowners.
Terminix handles all kinds of pest problems for residential and commercial customers. These include spiders, raccoons, rodents, opossums, termites, ants, and roaches. Terminix’s general pest regimen consists of a home inspection and preliminary treatment, with three seasonal treatments over the course of a year.
Founded in 1901 by a rat poison salesman named Otto, the Orkin brand has grown to be one of the most reputable in the pest control industry. Its exterminators need to undergo 160 hours of training. Plus, because of its large network, it can often offer next-day — or even same-day — visits.
Orkin will send a pest control expert to inspect your property to identify issues and develop a suitable treatment plan. After the initial visit, your technician will follow up regularly to ensure that the pests have not returned. If they have, your local technicians can assist
Founded in 1925, Rentokil has nearly 100 years’ worth of experience handling pests. Rentokil is the parent company of several North American pest control providers such as J.C. Ehrlich, Presto-X, and Western Exterminator, which provide tailored services.
Rentokil deals with the common pests in Diamond Bar, including moths, bees, spiders, flies, mosquitoes, bed bugs, crickets, ants, cockroaches, and wasps. After the initial inspection of your property, a technician will treat your property every four months.
Not all pest control businesses are the same when it comes to reputation, qualifications, and effectiveness. It's important to do your research to determine the best option for your specific pest problem. Here are the key factors to consider when hiring a pest control provider:
You should look for a pest control company that specializes in treating the pest you have, like termites, bed bugs, roaches, or rodents. The company should describe how they go about treating your type of pest.
The ideal exterminator will employ technicians that have state licenses and are certified in pest control methods by associations like the National Pest Management Association (NPMA). These credentials show that the technicians have completed proper training. You'll also want to ask each company about regular education updates for their employees.
We suggest reading customer reviews before scheduling a pest control appointment. Google, Yelp, and other review sites will show whether a company consistently provides quality service and has happy customers. Also check the Better Business Bureau website for any complaints that have been filed. Ask about the kind of continuing education technicians receive to stay current on best pest control practices. When you choose a professional from our list of Diamond Bar's best pest control, you can feel confident knowing that you're hiring an expert that meets our quality and review standards.
Homeowners who want natural, eco-friendly pest control should look for services that use “green” certified solutions. You can also ask about humane catch and release methods for larger pests like mice or other burrowing rodents. Keep in mind that natural options may be less effective for serious infestations. If you’re dealing with a major pest problem you may need stronger traditional methods. Regardless of what methods you choose, all pesticides that are classified as greater than minimal risk are required to be registered with the EPA.
Reliable pest control companies normally offer service guarantees for recurring plans. These guarantees mean the company will come back and re-treat your home for free if pests remain after the first treatment. One-time services usually don't come with reservice guarantees.
After selecting your top exterminators, reach out to each one with questions such as these:
Take the time to thoroughly assess pest control companies using these questions. This will enable you to choose the best provider to effectively handle your pest situation at a fair price.
A variety of pests can find their way into Diamond Bar residences. Some are relatively harmless, but others can damage your home and your health. All of them can cause anxiety. We analyzed around 10 million online conversations to identify the pests that were causing the most trouble for residents.
Our top picks for pest control companies are Orkin and Terminix. They're highly regarded in the industry and help get rid of all common pests.
Hiring a pest control company and getting a professional to spray your property once every quarter is the best way to prevent future pest infestations. This deters insects and other wildlife from coming inside your house.
Whether you should do DIY pest control or hire a company depends on your situation. You’ll want to consider factors like what chemicals need to be used, how much the pest control will cost, and the size of the infestation. In addition, you may want to also get professional pest control if you're concerned about safety.
Many Diamond Bar homeowners are concerned about the cost of pest control. Monthly pest control usually costs $40 to $70 a visit. Quarterly pest control costs about $110 to $250 a visit. To figure out exactly how much it will cost for you, we recommend contacting several companies for an estimate.
We recommend quarterly pest control treatments, or even bi-monthly in Diamond Bar, where pests can pop up more often because of the heat. For larger infestations, your exterminator may recommend monthly treatments for the first three to six months.
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