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Top-Rated Pest control specialists in Princeton - 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 Princeton, 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

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

Serving Princeton, 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
Avatar for Anderson Pest Solutions
Anderson Pest Solutions
4.0(
49
)
Mosquito ControlPest Control - Bed BugsPest Control - Birds and Bats+4 more

Serving Princeton, IL and surrounding areas

In business since 1913

Free estimates

Credit card accepted

"I used them for mosquito control Weather has a major impact on scheduling, so it was hard to set firm dates for service. Always showed up once they were scheduled. Treatments provided significant, but not total relief from mosquito problem. Price was good compared to other services. Techs were always pleasant and professional."
Recommended by89%of homeowners
Pest Control FAQs, answered by experts

Because scorpions are active during the night, it can be hard to spot them—they are often hiding while you’re up and about. They could be hiding in holes in your walls, behind large appliances, under your bed, in your closet, or even inside your shoes. But, if you’ve seen one scorpion in your home, chances are there are more waiting in the darkness. If you’re on the hunt for scorpions in your home, invest in a UV light, as all scorpions will glow under UV rays.

You’ll find that phorid fly larvae breed in moist, decaying, organic matter. When trying to locate a breeding site, thoroughly inspect the following places in your home: drain pipes, trash cans, garbage disposal, pet waste, rotting produce, plants, compost bins, and even under appliances like the stove and refrigerator where moist food may have dropped. It’s also possible for a breeding site to form inside of a wall, crawl space, or under your home’s foundation.

A combination of traps, baits, and exclusion techniques effectively manage rodent populations.

Male carpenter bees actually don't have a stinger, but they will hover around areas as a defense mechanism to deter intruders. However, females can sting but are not typically aggressive and tend to only sting when threatened or provoked. They are less active at night, so you are less likely to encounter them because they tend to rest at night.

Rats are nocturnal creatures, meaning they are most active at night, typically from late evening through the early morning. They use the cover of darkness to explore, forage for food, and find water, as they feel safer and can avoid daytime predators and human activity. Their sharp senses, including keen night vision and hearing, are well-suited for navigating in the dark. Because they prefer to stay hidden during the day in secluded areas like walls or attics, you are more likely to spot signs of their presence—such as droppings or gnaw marks—before you see an actual rat.

The Princeton, IL homeowners’ guide to pest control services

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