January 6, 2026

How to Tell If You Have a Mouse in the House

Mice don’t announce their arrival, but they do leave clues behind. If you know what to look for, you can catch a mouse problem early, before it turns into costly damage or a health concern for your family.

Spotting the early signs of mice in your home is both a blessing and a warning. Acting quickly can help prevent chewed wires, contaminated food, and a growing infestation that’s harder to control.

Bizzy Bee Exterminators has been solving mouse problems since 1972. Below, we’ll walk you through the most common signs of mice, where they’re getting in, and what you can do next to protect your home.

rodent dropping on concrete

​What This Blog Covers

In this guide, you’ll learn:

Why Having Mice in Your House Is a Problem

Whether you find mice frightening or harmless-looking, the reality is that they don’t belong inside your home. Here’s why:

Health Risks

Mice can carry diseases and spread germs throughout your home. They contaminate food and surfaces with droppings and urine, and particles can become airborne, increasing the risk of illness for your family.

Property Damage

Mice constantly chew to keep their teeth from overgrowing. Inside your home, that leads to damage such as:

This type of damage can lead to electrical fires, water leaks, mold growth, and costly repairs.

Rapid Population Growth

A mouse problem rarely stays small. What starts as one or two mice can quickly turn into a much larger issue if left untreated, increasing both health risks and damage.

Common Signs You Have Mice

If mice are inside your home, you’ll usually notice signs fairly quickly. Here’s what to watch for:

Mouse Droppings

Mouse droppings are:

The more droppings you see, the more active the mice likely are.

Gnaw Marks

Mice chew on almost anything. Look for gnaw marks on:

Fresh chew marks are often a strong indicator of current activity.

Nests

Mice build nests in warm, dark, undisturbed areas such as:

Nests are typically made from shredded paper, fabric, insulation, and other soft materials.

Scratching or Scurrying Noises

Mice are most active at night. As you’re trying to get to sleep, you may hear squeaking, scratching, scurrying, or rustling sounds in:

Tracks and Grease Marks

In dusty areas, you may notice tiny footprints or tail marks. Along walls and baseboards, mice often leave greasy rub marks from their fur as they travel the same paths repeatedly.

Unusual Pet Behavior

Dogs and cats often notice mice before people do. If your pet is staring, pawing, or acting fixated on a specific area, it could be reacting to mouse activity.

Where Mice Most Often Enter Your Home

Mice can squeeze through openings as small as a dime. Common entry points include:

Many of these openings go unnoticed until mice take advantage of them.

Mouse Prevention Tips for Homeowners

To make your home less inviting to mice, Bizzy Bee Exterminators recommends:

While these steps help, they aren’t foolproof on their own.

When to Call the Professionals at Bizzy Bee Exterminators

Even with prevention efforts, mice can still find their way inside. When that happens, you have two choices:

  1. Wait until you notice signs of mice, then call Bizzy Bee Exterminators to eliminate the infestation
  2. Be proactive and contact Bizzy Bee Exterminators now to help prevent mice from ever getting inside

Waiting increases the risk of damage and illness. Proactive protection helps stop problems before they start.

Our home pest control services include:

Protect Your Home From Mice (and Other Pests) Year-Round

Regular inspections, early detection, and professional pest control are the most effective ways to prevent a mouse problem from escalating. Partner with Bizzy Bee Exterminators for a thorough, reliable pest control plan to protect your home and family from these destructive rodents and other house-infesting pests commonly found in homes in Acworth, Oxford, and Metro Atlanta, as well as Greenville, South Carolina, and surrounding areas.

Contact us today to get started.

What Bizzy Bee's Customers Are Saying!

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Great business. Punctual, professional, and cost-effective. Call Bizzy Bee for all your pest control needs

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Winder, GA.

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We have been using Bizzy Bee for 10+ years now. Just had our next visit in our new place in Monroe. Cecilia was Very knowledgeable, friendly and courteous. Thank you Bizzy Bee for your services. We recommend this firm for anyone's pest control needs.

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Monroe GA.

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