Signs You May Have a Rodent Infestation

November 9, 2023

Young,Man,And,A,Lot,Of,Cockroaches,At,HomeRodents like mice and rats are common household pests that can cause significant damage and pose health risks. These stealthy creatures can quickly infest your home if not addressed promptly. Being aware of the signs of a rodent infestation is crucial to take immediate action and prevent further damage. In this blog post, we will discuss some common signs that indicate you may have a rodent infestation in your home.

1. Droppings:

Rodent droppings are one of the most apparent signs of an infestation. Mice and rats leave behind small, pellet-like droppings that can be found throughout your home, especially in areas where they frequent, such as the kitchen pantry, cabinets, or behind appliances. Fresh droppings are dark and moist, while older ones may become dried and crumbly. Finding a large number of droppings in a specific area is a clear indication of rodent activity.

2. Gnaw Marks:

Rodents have a natural instinct to gnaw on objects to keep their teeth sharp and prevent them from growing too long. Look for gnaw marks on furniture, baseboards, electrical wires, and even food packaging. Gnaw marks often appear as small, irregular holes with rough edges. If you come across signs of gnawing, it is a strong indication that rodents are present in your home.

3. Strange Noises:

Rodents are nocturnal creatures, so you are more likely to hear them scurrying around at night. If you hear scratching sounds, squeaking, or scampering noises coming from the walls, attic, or ceiling, it’s likely that you have a rodent infestation. Pay attention to any unusual noises, especially during the evening or early morning hours when rodents are most active.

4. Nesting Materials:

When rodents invade your home, they seek out materials to build nests for shelter and breeding. Inspect areas like attics, basements, and storage spaces for signs of nesting materials. Common materials used by rodents include shredded paper, fabric, insulation, and even dried plant matter. If you find a nest or signs of materials used for nesting, it’s a clear indication that rodents have made themselves at home in your property.

5. Grease Marks:

As rodents travel along walls, they leave behind greasy smudges or marks. These marks, caused by the dirt and oils on their fur, are known as “rub marks” and are often found near entry points, along baseboards, or on corners. If you notice greasy streaks on your walls or other surfaces, it could be a sign of rodent activity.

6. Unpleasant Odors:

Rodents have a distinctive, musty odor that can permeate your home if an infestation is present. The smell is often more noticeable in enclosed spaces like attics or crawl spaces. If you detect a foul or musky odor that persists even after cleaning, it could be an indication that rodents are present.

7. Visible Tracks or Footprints:

Rodents tend to follow the same paths repeatedly, leaving behind visible tracks or footprints. Dusty or dirty areas, especially near walls or along baseboards, provide a perfect opportunity to spot these tracks. Look for small footprints with four toes in front and five toes in the hind feet. If you notice tracks, it’s a sign that rodents are actively moving around your home.

8. Chewed Electrical Wires:

Rodents have a habit of chewing on electrical wires, which can be extremely dangerous and pose a fire hazard. Inspect your electrical wiring for any signs of damage or exposed wires. If you find chewed wires or witness flickering lights or power outages, it’s crucial to address the issue promptly to prevent any electrical problems or potential fires.


Recognizing the signs of a rodent infestation is essential to take swift action and mitigate the risks associated with these pests. Look for droppings, gnaw marks, nesting materials, strange noises, grease marks, unpleasant odors, visible tracks or footprints, and chewed electrical wires. If you suspect a rodent infestation, it’s best to contact a professional pest control service provider to effectively eliminate the problem and implement measures to prevent future infestations. Keep your home clean, clutter-free, and seal any entry points to minimize the chances of rodents finding their way in.

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Crist Termite & Pest Solutions, Inc. has been serving Central Illinois since 1948. For over 70 years, Crist Termite & Pest Solutions, Inc. has been providing Central Illinois with top-notch pest control services. We are a multi-generational company that understands that customers should be treated like family. We have always provided quality service at a reasonable price, with customer satisfaction as our number-one goal. Whether you have an issue with rodents or insects, we are here to help! We utilize the Sentricon Colony Elimination System as the solution to help keep your home termite free. Our expertise is in keeping your house free of mice, ants, roaches, spiders, and more! We offer free inspections, so give us a call today!

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