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

Avatar for Terminix® Pest Control
Terminix® Pest Control
3.9(
1,073
)
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

62 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

Most spiders are harmless or do little more than the equivalent of a bee sting. Prevention is the best option for more serious cases. Keep spiders out of your home when possible. When you find spiders, a spider nest, or egg sac, remove it quickly before an inquisitive pet or child gets involved. When children are old enough, teach them to recognize the few dangerous species of spiders and avoid them to prevent getting bitten.

How often you need pest control depends on your infestation problem. If you have a one-off issue, such as a wasp nest in a high-traffic area, you shouldn't need regular service. However, if you live in an area prone to ticks, termites, and ants, you'll likely need at least an annual pest control service. If the problem is persistent and significant, you may need quarterly or monthly service.

These are the signs of bed bugs to look out for:

  • Blood or rust-colored stains on mattresses, fabrics, or upholstery

  • Dark spots of excrement that look like dots from a fine-tipped permanent marker

  • Tiny eggshells and yellowish shed skins

The main things to consider when hiring an exterminator is your infestation size and budget. The price range for roach extermination varies widely depending on the circumstances. If it’s a localized infestation that only requires a few treatments from an exterminator, it will probably only cost hundreds of dollars at most. But if you have a large house and a widespread infestation, be prepared to pay thousands of dollars for fumigation and tenting.

Groundhogs have a strong aversion to powerful scents, including garlic, ammonia, vinegar, hot peppers like cayenne, and predator urine. Various herbs such as rosemary, lavender, basil, mint, sage, thyme, and oregano can also act as deterrents. You can strategically use these odors around your property by planting these crops near your garden and by the entrances to groundhog burrows. Commercially available repellents offer another option, and for best results, scent-based deterrents should be used alongside other preventive measures.

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.