How can you get rid of mice in walls at home?

How can you get rid of mice in walls at home? - briefly

Seal all cracks and gaps leading to the cavity, place snap traps or bait stations inside the wall, and run an ultrasonic repellent to reduce activity; afterward, replace damaged insulation and install rodent‑proof sheathing to prevent future infestations.

How can you get rid of mice in walls at home? - in detail

Mice nesting inside wall cavities create noise, damage insulation, and increase disease risk. Effective control requires a systematic approach: identification, exclusion, removal, and prevention.

First, locate activity. Listen for scratching or scurrying, especially at night. Look for droppings, gnaw marks on wood or wiring, and shredded material near baseboards or vents. Use a flashlight to inspect any accessible openings, such as holes around pipes, electrical conduits, or gaps under doors.

Next, seal entry points. Apply steel wool or copper mesh to small cracks, then cover with caulk or expanding foam. For larger openings, install metal flashing or hardware cloth (1/4‑inch mesh) secured with screws. Pay special attention to utility penetrations, vent covers, and the perimeter of the foundation.

After exclusion, reduce the existing population. Options include:

  • Snap traps placed in wall voids or adjacent rooms, baited with peanut butter, chocolate, or dried fruit. Position traps perpendicular to the wall, with the trigger end facing the opening.
  • Live‑capture traps for humane removal, followed by release far from the property.
  • Electronic traps delivering a rapid, lethal shock.
  • Rodenticides only when sealed bait stations can be installed safely away from children and pets; follow label instructions and local regulations.

Set traps for several days, checking them daily. Dispose of captured rodents according to local health guidelines. If activity persists, consider hiring a licensed pest‑control professional to apply targeted baits or conduct structural assessments.

Finally, implement long‑term deterrents. Keep food stored in airtight containers, clean crumbs promptly, and maintain a regular schedule of garbage removal. Reduce clutter in basements, attics, and crawl spaces, which provides shelter. Install door sweeps and weatherstripping to eliminate gaps beneath exterior doors. Periodically inspect the building envelope for new cracks caused by settling or weather.

By combining thorough inspection, physical exclusion, strategic trapping, and diligent sanitation, homeowners can eradicate hidden rodent infestations and prevent future incursions.