Where Are Mice Getting In? Common Entry Points Mice Use to Invade Homes

Mice are experts at finding small openings and gaps to squeeze into a home. As colder weather approaches, these little intruders seek warmth and food, making homes a prime target. Here’s a breakdown of the most common entry points mice use to get inside—and what you can do to help seal them out.

1. Around Utility Entry Areas

Gaps around gas lines, plumbing pipes, electrical conduits, and other utility entry points often provide ample space for mice to slip in. Inspect these areas for any gaps or holes and fill them with durable materials like steel wool, which mice can’t chew through, or use caulk to create a more permanent seal.

2. Damaged, Open, or Unsecured Vents

Vents allow for necessary airflow, but if they’re damaged, unsecured, or left open, they provide an easy way in for mice. This includes foundation vents, attic vents, and crawlspace vents. Use vent covers that are securely installed, and repair any broken or loose screens.

3. Dryer Vents

Dryer vents are another common entry point for mice, as the warmth can attract them in colder months. Ensure your dryer vent is in good condition, with no gaps or loose flaps. You can add a vent guard to keep pests out while still allowing airflow.

4. Garage Doors with Worn or Damaged Seals

Garages are often the first entry point for mice, and if the door seal is damaged or doesn’t sit flush to the ground, they can sneak right in. Check for any cracks or worn areas on your garage door seal and replace it as necessary. Adding weather stripping can help eliminate gaps mice might use.

5. Cracks and Gaps Around Windows and Doors

Windows and doors, especially those leading to basements or garages, are often overlooked but can develop small gaps over time. Weather stripping or caulk around these openings helps to keep both pests and drafts out.

Proactive Steps for a Mouse-Free Home

Regularly inspecting these common entry points, sealing any gaps, and keeping areas around your home tidy can go a long way in deterring mice. If you notice signs of mice or would like help securing your home against pests, reach out to a professional wildlife control service for a thorough inspection and long-term solutions.