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Top-Rated Pest control specialists in Illiopolis - Updated Nov 2026

Avatar for Terminix® Pest Control
Terminix® Pest Control
3.9(
1,074
)
Pest Control - Bugs and InsectsPest Control - RodentsPest Control - Termite+6 more

Serving Illiopolis, IL and surrounding areas

Approved

In business since 1927

Free estimates

Warranties offered

"Very knowledgeable guy who seem to know what he’s doing. Don’t know results of spraying. Have had much rain since. Will have to see if it worked. Terminex will spray again the beginning of next month."
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+2

55 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for TruGreen
TruGreen
3.7(
10
)
Mosquito Control

Serving Illiopolis, IL and surrounding areas

Approved

In business since 1974

Free estimates

Credit card accepted

"TruGreen provided transparent pricing and quality workmanship when treating my property for bed bugs. Their technicians were professional and thorough, ensuring every area was treated to eliminate the infestation. I appreciated their attention to detail and how they followed up to ensure the problem was resolved. I'll definitely be using their services again if needed."
Recommended by100%of homeowners
Enviro Management Group LLC
New to Angi
Pest Control - Bed BugsPest Control - Bugs and InsectsPest Control - Termite

Serving Illiopolis, IL and surrounding areas

In business since 2011

Free estimates

Credit card accepted

Enviro Management based in Centre Hall, PA, offers preventative and on-demand pest control services and Insulation installation. Our unique business has a number of programs available that are designed to help homeowners, business owners, industrial clients and the agricultural sector with pest problems and Energy issues. \n \nAll of the technicians employed at Enviro Management are licensed with the Pennsylvania Department of Agricultural. Safety of a building's occupants and the sensitivity of the environment are always our top priorities when sending technicians out on the job. \n \nIf you want more information on the pest and Insulation services Enviro Management can provide, give our friendly staff a call today at 814-359-2600

Pest Control FAQs, answered by experts

Honey bees are most likely to swarm during spring and early summer, typically from April through June, as colonies expand and prepare for new growth. Swarming occurs when a hive becomes overcrowded, prompting the queen and a group of worker bees to leave in search of a new nesting site. During this time, you may notice a temporary increase in bee activity around your property.

Gophers are ubiquitous in certain areas, and the only way to completely get rid of them is to put down gopher wire two feet below the surface of your soil and vertically along the edges of your yard. Unfortunately, this may not be a practical solution unless you’re completely redoing your yard or installing an aboveground garden. Alternatively, you may consider putting underground rock barriers around the edge of your yard to discourage gopher visits. However, you’ll still likely get some pests because they can dig as deep as 6 feet below the surface.

Yes, it’s actually common to see more cockroaches after you spray. It might seem like things are getting worse, but that’s usually a sign the treatment is working. Roach sprays and baits can flush them out of their hiding spots as they try to escape the chemicals. You might notice them acting strangely—slower, twitching, or out during the day when they’re usually hiding.

Unexplained bites, strange smells, and bug nests in concealed areas warn of potential infestations.

It takes a few weeks to get rid of roaches in the kitchen for a small infestation, as the cockroaches will need to take the bait back to their nest to infect the others. For larger infestation, you may need to schedule multiple professional treatments, which could take several weeks or up to 6 months to get rid of the roaches fully.

The Illiopolis, IL homeowners’ guide to pest control services

From average costs to expert advice, get all the answers you need to get your job done.