Western Exterminator Company is the #1 Monrovia, CA pest control & extermination company. We have over 105 years experience, and have helped over 1,000,000 homeowners and businesses with boxelder bug extermination and other pest control. Read on to learn why we are the top choice for pest control in Monrovia, CA, then pick up the phone and call us for prompt help with your pest problems.

If boxelder bugs have found their way into your Monrovia home or business, California's climate is working against you. Warm temperatures and minimal winters mean pests stay active longer here than almost anywhere else in the country — and they won't leave on their own. Western Exterminator Company provides expert boxelder bug control for Monrovia, California residents, combining thorough inspections with proven treatments that keep pests out long-term. Stop letting boxelder bugs take over your space. Contact Western Exterminator Company today and get the professional help your California property needs.
Boxelder bugs follow a predictable seasonal pattern in Monrovia, California — gathering in large numbers on sun-facing surfaces in fall and seeking indoor shelter to overwinter. The problem isn't just their presence outside; it's what happens when thousands of them get into your walls, attic, or living spaces. Western Exterminator Company understands boxelder bug behavior and applies treatments at exactly the right time and in the right places to stop them before they invade. Contact Western Exterminator Company today for expert boxelder bug control in Monrovia, California.
Founded in 1921, Western Exterminator Company has been a pioneer in boxelder bug control in Monrovia, California, ensuring the safety and health of both homes and businesses. With a rich history exceeding a century, the company is renowned for providing reliable and effective boxelder bug removal solutions. Western Exterminator Company also offers advanced options like Tap insulation to better protect attics and crawl spaces from pest invasions. The dedication of their boxelder bug exterminators to thorough pest management demonstrates their commitment to offering California residents a complete approach to maintaining pest-free living and working environments.
Pests can quickly turn your Monrovia home into an uncomfortable and even hazardous environment. Whether it’s destructive termites, disease-carrying rodents, or invasive ants, once pests establish themselves, they can be difficult and costly to remove. A pestfree365 program from Western Exterminator Company provides proactive, year-round defense against these unwelcome invaders, preventing infestations before they start.
Each season brings unique pest challenges, making year-round protection essential. In the spring and summer, ants, mosquitoes, and wasps become more active, invading homes and outdoor spaces in search of food and shelter. As fall approaches, pests such as rodents and cockroaches seek warmth indoors, often hiding in attics, basements, and wall voids. Without proactive treatments, these seasonal shifts can lead to full-blown infestations. A pestfree365 program from Western Exterminator Company ensures that pests are controlled at the right time, preventing them from becoming a bigger problem.
By investing in a protection plan, homeowners receive scheduled inspections and treatments tailored to their specific needs. Western Exterminator Company’s experts identify early warning signs of pest activity, applying preventative treatments to high-risk areas like basements, crawl spaces, and entry points. This proactive approach keeps pest populations under control, reducing the likelihood of sudden infestations.
One of the biggest benefits of a pestfree365 program is consistency. Without routine service, pest problems can escalate quickly, leading to costly extermination and repairs. Whether it's preventing structural damage from termites, avoiding allergic reactions from stinging insects, or stopping the spread of bacteria from cockroaches, ongoing pest management saves homeowners time, stress, and money.
With a customized pestfree365 program from Western Exterminator Company, you can enjoy peace of mind knowing your home is protected from pests all year long. Don’t wait until an infestation takes over—stay ahead of the problem with reliable, professional pest control today!
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Boxelder Bugs are distinguishable from other insects by their unique color pattern and elongated, oval shape. They tend to congregate in large numbers, which is another identifying feature.
Boxelder Bugs enter a state of diapause, or dormancy, during winter. They often invade homes and buildings in large numbers to overwinter in warm and protected environments.
Boxelder Bugs are not harmful; they do not bite or transmit diseases. However, their feces can stain fabrics and their large numbers can be a nuisance.
Boxelder Bugs are attracted to warm, sunny surfaces and may enter homes looking for overwintering sites as temperatures drop in Monrovia, California. They are especially drawn to buildings with significant sun exposure.
Western Exterminator Company offers treatments that include sealing entry points, applying insecticides around the perimeter of the home, and giving advice on preventing future infestations.
While DIY methods like soapy water sprays can kill Boxelder Bugs on contact, they are less effective at managing large or recurring infestations compared to professional treatments offered by Western Exterminator Company.
Discover why professional pest control is more than just spraying for bugs and the importance of hiring a licensed exterminator. Learn more about pest control and how it protects your family's health and your home's value.
Reliable and effective program.
Great job. Highly recommend
Eversince Western Exterminator Company set foot in our house to do pest control service, we haven't had pest problems anymore. I am satisfied with their service.
Western Exterminator Company uses great products and offers even greater customer service! Their rep was super nice, and we are really just so happy that we use Western Exterminator Company.
Western Exterminator Company's rep was very courteous and helpful and did an awesome job treating our home. Why don't all other companies have reps as wonderful as him?
Western Exterminator Company's rep obviously knew his stuff. He answered all my questions, and did an outstanding job overall. You need pest control service? Try Western Exterminator Company.
All their reps, and I mean ALL, are always very polite and professional. They answered all our questions patiently, and are more than capable of treating our pests. Western Exterminator Company comes highly recommended to friends and family.
As a customer of Western Exterminator Company for only a few months, I am already impressed. For every rep that comes out to our home, it seems like they get kinder every time. Their customer service is such a delight. For one, they call ahead of time, and they go out of their way to work around the customer's schedule. In addition, their reps are all very professional yet personable. Best of all, they go above and beyond what is expected. Case in point, the most recent rep even thought of wearing shoe covers before walking all over my carpets. If that's not perfect customer service, I don't know what is. I cannot recommend Western Exterminator Company enough!
Western Exterminator Company provides fabulous service from their awesome reps.
Western Exterminator Company guarantees its treatment plan for a full year. If for whatever reason you have any new boxelder bug problems or other covered pests, we will treat immediately and at no cost to you. Immediately means you are our priority.
The barriers we put in place to protect your home and family against pests will naturally break down over time. This is why over the course of the year we will regularly reapply treatments to ensure your home is protected. For more details on our treatment schedule ask about our pestfree365 program.
Your home is your largest investment.
Let Western Exterminator Company protect it against pests!
*Offer may not be combined with other offers. Valid on yearly service agreements only. Must mention coupon code WGL to receive discount. Minimum $100 purchase. Some exclusions apply. Speak to a representative for details.
Monrovia, CA homeowners can expect to pay $140 to $320 for pest treatments. California's mild climate supports year-round infestations. Drywood termites, wasps, and mice are frequent calls for service. Annual inspections help avoid costly damage.