Pest Control in St. Louis, MO

Arenz Pest Management Solutions Inc. In St. Louis Missouri

We're delighted you found us. We are ready to assist you and your family with any pest control problems in St. Louis. We hope our website will help address any questions you have regarding the safe removal of cockroaches, termites, spiders, wasps, or any other unsanitary pests from your home or business.

The staff at Arenz Pest Management, Inc. are St. Louis natives and part of your community. We answer all our calls personally, so you'll be speaking directly to our team, not an out-of-state call center. Our dedicated and knowledgeable staff are committed to providing safe, affordable, and reliable pest control services while ensuring you understand all available options for control.

As a family-owned and locally-operated business, our vision is to ensure a pest-free environment using ethical and safe practices. Our motto is “Protecting our Families” — this commitment underscores every aspect of our work.

We proudly serve the greater St. Louis region and surrounding counties, including St. Louis, Affton, Kirkwood, Des Peres, Chesterfield, St. Charles, Ballwin, and Fenton, among others.

Our presence in these diverse communities enables us to understand the specific pest control needs and challenges faced by each area. Additionally, our proactive pest management measures can help deter issues specific to the different environments found across St. Louis—whether urban, suburban, or rural. In compliance with local regulations and standards, we ensure safety in every service we provide.

FAQs About Pest Control in St. Louis, MO

1. What kinds of pests do you deal with most often in the St. Louis area?

Living and working right here in St. Louis, we see a wide range of pests year-round. Some of the most common ones we treat include ants, termites, cockroaches, rodents, spiders, and bed bugs. Each of these pests behaves a little differently depending on the time of year, but they’re all more than just a nuisance—they can damage property or pose serious health concerns if not handled correctly.

2. How can I tell if I’ve got a termite problem?

Termites are sneaky, and by the time people notice them, the damage is often already happening behind the walls. Some warning signs include mud tubes along the foundation, discarded wings near windows, and wood that sounds hollow when tapped. In the spring, you might see swarmer termites flying near your home. If any of those signs pop up, it’s time to give us a call before they cause expensive structural damage.

3. I think I have bed bugs. What should I do next?

If you’re waking up with itchy bites, or you’re noticing small black spots or reddish stains on your bedding, bed bugs could be the culprit. This is not something to try to treat on your own with store-bought sprays—those usually make the problem worse by driving the bugs deeper into walls or furniture. We offer thorough inspections and proven treatments to get your home back to normal quickly and discreetly.

4. Is professional termite treatment really necessary?

Absolutely. DIY termite solutions are not effective long-term, and the cost of repairs from untreated infestations can be steep. At Arenz Pest, we use a proven liquid barrier treatment with Termidor®—one of the most effective products on the market. Our approach doesn’t just treat the termites you see, it eliminates the colony at its source. It’s peace of mind that’s worth every penny.

5. When is termite season in the St. Louis region?

In St. Louis, we typically see termite swarms start in March or April and continue through early summer. If you notice flying termites around your property during that time, that’s a red flag that a colony may be nearby or already inside. We recommend an annual inspection before swarming season so we can catch any activity early.

6. How do I keep mice and rats out of my house?

Rodents are a huge issue in St. Louis, especially in the fall and winter when they’re looking for warmth. I always tell folks to seal any gaps larger than a quarter-inch around pipes, vents, and doors. Keep food stored securely, take trash out regularly, and avoid clutter—especially in garages or basements. If you’re hearing scratching at night or seeing droppings, it’s time for us to step in.

7. Are rodents dangerous, or just annoying?

They’re both. Mice and rats chew through wires and drywall, but the bigger concern is the diseases they can carry. From salmonella and hantavirus to the fleas and ticks they bring with them, rodents pose real health risks. We take rodent infestations seriously and use proven strategies to not only remove them but also prevent them from coming back.

8. What’s the best way to prevent spiders from getting inside?

Spiders come inside when they’re following food—usually other insects. So the first step is keeping your home free of other pests. Beyond that, you’ll want to eliminate clutter, especially in garages and basements, and keep firewood stored at least 20 feet from the house. If you’re seeing venomous spiders like brown recluses or black widows, don’t try to treat it yourself. We’ve got the right products and protective gear to handle those situations safely.

9. What should I do after you treat my home for pests?

After a treatment, we’ll walk you through what to expect and what to avoid. Generally, you don’t want to clean treated surfaces too soon—especially along baseboards or corners—since that’s where the products are doing their work. Keep an eye out for increased pest activity over the first week or so, which is a good sign the treatment is working. And we’ll let you know if there are any follow-up steps to take or changes to make around your property to prevent reinfestation.

10. How often should I schedule pest control service?

That really depends on your home, your neighborhood, and which pests you're dealing with. For general pest prevention, we recommend quarterly visits. Termite inspections should happen at least once a year. If you’ve had ongoing issues with rodents, roaches, or spiders, more frequent treatments might make sense. We offer flexible plans so you’re never paying for more than you need—but you’ll always have the coverage you want.

Call (636) 306-3931 or message us online today for professional pest control services in St. Louis, MO.