We may be compensated if you purchase through links on our website. Our Reviews Team is committed to delivering honest, objective, and independent reviews on home products and services. More
Exterminator and customer

Best 5 Pest Control Companies in O'Fallon, MO

Get matched with a top local pro
Join the 6,755 people who have received a free, no-obligation quote in the last 30 days
  1. Home
  2. Local Pros
  3. Pest Control
  4. MO
  5. O'Fallon
Written By Jessica Hurtault|Last Updated: April 18, 2024

Pests such as rats and bed bugs are a major concern in places that are more densely populated, such as O'Fallon. These critters aren't just simple nuisances. The more an infestation spreads, the more severe of a threat it can pose to your health and living environment.

Below, you can find our list of the best pest control companies in O'Fallon, who can help you eliminate any kind of pest problem.

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

Best 5 O'Fallon Pest Control Companies

Orkin Logo


Based on 3,800 customer reviews.

Services Offered

MosquitosAntsTermitesMiceWaspsBed BugsGeneral Pest ControlCockroachesTicksBaitingSpidersFumigationWildlife


  • No-cost inspections
  • Continuous highly praised customer service reports
  • Lack of hidden fees
855 Westwood Industrial Park Dr, Weldon Spring, MO 636-489-2601 orkin.comRead More: Orkin Review
Amco Ranger Termite & Pest Solutions Logo

Amco Ranger Termite & Pest Solutions

Based on 880 customer reviews.

Services Offered

Bed BugsFliesAntsWildlifeGeneral Pest ControlGreen Pest ControlMosquitosSpidersGarden ProtectionCockroachesPreventionMiceTicksTermitesFleas


  • Reviews praise customer service
  • Free inspection policy
  • Transparent pricing
5185 State Rte N, Cottleville, MO 636-441-2847 amcoranger.com
All Solutions Pest Control Logo

All Solutions Pest Control

Based on 405 customer reviews.

Services Offered

TermitesSpidersMiceGreen Pest ControlCockroachesAntsTicksFleasWaspsGeneral Pest ControlMosquitosBed BugsPreventionSilverfish


  • Proactive approach to pest control
  • Transparent pricing
  • Punctual arrival
44 Jason Ct, St Charles, MO 636-486-7888 allsolutionspestcontrol.com
McCarthy Pest & Termite Control Logo

McCarthy Pest & Termite Control

Based on 335 customer reviews.

Services Offered

WaspsBed BugsMosquitosFliesSpidersFleasBeesTermitesFumigationMiceCockroachesPreventionWildlifeGeneral Pest ControlAnts


  • Punctuality
  • Commitment to customer education
  • Free inspections
954 Sycamore Dr, St Charles, MO 636-441-1300 mccarthypest.com

More Local Pest Control Companies

Rottler Pest Solutions

User Reviews: 5/5 

15340 Veterans Memorial Pkwy
Wentzville, MO 63385

Pointe Pest Control

User Reviews: 4.5/5 

8491 Veterans Memorial Pkwy
O'Fallon, MO 63366

Newt’s Pest Control

User Reviews: 4.7/5 

3447 Hiram St
St Charles, MO 63301

Aptive Environmental

User Reviews: 4.9/5 

2347 Weldon Pkwy
St. Louis, MO 63146

Unitech Pest And Termite Services

User Reviews: 4.7/5 

11495 St Charles Rock Rd
Bridgeton, MO 63044

St. Louis Pro Turf & Pro Pest Solutions

User Reviews: 4.6/5 

2263 Administration Dr
St. Louis, MO 63146

Drysdale Termite & Pest

User Reviews: 4.5/5 

3854 Park Place Estates Dr
Bridgeton, MO 63044

Mosquito Joe of Greater STL County

User Reviews: 4.6/5 

14560 Manchester Rd Suite 31
Ballwin, MO 63011

Hawx Pest Control

User Reviews: 4.7/5 

9635 Dielman Rock Island Industrial Dr
Olivette, MO 63132

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

Exterminator and customer

Get Your Pest Control Project Quote Today

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Facts about O'Fallon
Average Max Temp:65°F
Average Min Temp:46°F
Average Daily Sunlight:55%
Average Annual Snowfall:11.3"
Average Monthly Precipitation:3.41"
Average Monthly Pest Visit:$230

Expert Tips By

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

Hiring the right company for you is the most important step in the pest control process. Along with a company's qualifications and pest extermination methods, you might also consider how long it has been in business and what the reviews are like. Finally, 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?

    Per 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 pesticide applicators in Missouri need to be licensed through the proper state regulatory agencies.

  • Is the company a member of any professional organizations?

    A pest control company can obtain optional certifications from trade organizations like QualityPro to back up its standards and methods. One particular certification is the GreenPro Service Certification, which is awarded to any company that can demonstrate that its methods are more environmentally friendly. A company that receives this certification also needs to maintain certain employee training standards.

    Pest control companies can also belong to certain professional organizations. Joining an organization such as the National Pest Management Association (NPMA) or a state-level organization grants a pest control company access to education and resources, as well as a professional network to compare best practices with. Membership in one of these organizations is not mandatory, but it can help indicate that a company follows industry best practices.

Professional Experience and Specialties

You can gain some insight into a pest company's level of experience by looking at how long it has been in business. The company's website and local reviews can also clue you in as to whether the company has experience dealing with the specific species of pests invading your home. You can always reach out to a representative directly to learn this information if it is not available online.

  • Reviews and Recommendations

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

  • Cost of Services and Guarantees

    Cost is important when hiring someone for pest control. Cost can be influenced by the size of your house, your location, the type of pest being treated, and other factors.

    Often, companies will offer free on-site estimates as part of their process, to help you determine 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

Your choice of pest control provider might be influenced by how eco-friendly a company's pest control management solutionsare, as well as how safe its methods are around your family and pets.

  • Safety

    Make sure to ask your pest control technician if the chemicals they're using are low toxicity or non-toxic, and if not, what sort of precautionary measures they plan to take. Any pesticides that are not minimum-risk chemicals need to be registered with the EPA. Your pest control provider will be able to provide you with information about all of the pesticides they plan on using.

  • Treatment Methods

    You can ask if your pest technician will start with more natural and lower-toxicity options before employing 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 whether immediate action is needed.
    2. Decide on the safest course of action.
    3. Manage the pest problem using a combination of mechanical, cultural, biological, and physical controls.
    4. Employ chemical controls only when absolutely necessary, and always with other solutions for effective long-term pest management.
    5. Assess the outcome and implement additional pest control as needed.

Common Household Pests in O'Fallon

Not all pests are equally pervasive in O'Fallon. Some species that you should be wary of are these:

  • Wasps: In many cases, wasps are difficult to rid yourself of, especially while trying to avoid being stung. They are commonly found in places like garages, sheds, attics, and roof overhangs.
  • Moths: If you're dealing with a moth infestation, you might start finding holes in your linens or clothing. Moths thrive in warmer weather and prefer dark places like closets.
  • Bed bugs: Infestations of bed bugs are often very difficult to eliminate, so we recommend calling a professional as soon as possible. Bed bugs are found throughout Missouri, and can infest not only your bedsheets, but also other furniture and even wallpaper.
  • Spiders: Spiders usually prefer dark and damp places and are commonly found in basements or attics.
  • Mice: If you have mice, you may notice droppings around your house, or things like chewed wires. You can often find mice in attics or in places where food is stored.

Ready to Get a Quote on Your Pest Control Project?

Get matched with a top local pro

Please enter a valid 5-digit zip code!

Frequently Asked Questions About Pest Control in O'Fallon

What causes pest infestations?

Pests enter your house looking for one of three things: food, water, or shelter. Some pests will opportunistically enter your home via a broken screen or foundation crack. Some are drawn by food, either actual food left out or trash sitting out in the open. Others are searching for water, either standing water outside or puddles inside from leaky pipes.

What are some steps I can take to prevent pest infestations?

One way to prevent pest infestations is seal off possible entrances into your house. This includes 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, get rid of standing water in and around your house. Find ways to reduce places where water collects outside, and repair leaks inside.

When should I hire a pest control professional?

Any time you notice signs of pest activity in your O'Fallon home—which could include nests, droppings, signs of damage, or the pests themselves—you should reach out to your local pest professional. If you've had seasonal or recurrent pest infestations, we recommend reaching out to a local pest control company to request annual pest management services.

What do I need to do before pest control services?

Before your pest control technician arrives, check and see if they want you to clean around your house, including in areas where there have been pests. Some pest professionals may prefer to see your home as-is.

If you are asked to clean, focus on making sure all paper goods and trash are out of the affected areas (as pests can hide in these items), and that food is stored away so that it does not get contaminated by pesticides. You might also want to remove plants from the area. Also make sure to block off areas to be treated so that children and pets stay away until it is safe. If the problem requires more intensive pest control, such as fumigation, be sure to follow your pest professional's instructions closely.

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