Discovering mice in your house can be unsettling. Many homeowners first notice the problem when they find droppings in cabinets, hear scratching sounds in walls at night, or see food packaging that has been chewed open.

Once mice enter a home they can reproduce quickly, which is why taking action early is important. The good news is that several proven methods can eliminate mice and prevent them from returning.

Step 1: Identify Where the Mice Are Entering

The most important step in getting rid of mice is finding the entry points they use to get inside.

Mice can squeeze through openings as small as a dime. Common entry points include gaps under doors, cracks in foundations, and openings around pipes.

Our guide on how mice get into houses explains the most common entry points to check.

Step 2: Remove Food Sources

Mice are attracted to easy food sources. Even small crumbs can support a mouse population.

Store food in sealed containers and clean up spills promptly. Pet food, bird seed, and pantry items should be kept in rodent-proof containers.

Step 3: Set Traps

Traps remain one of the most effective ways to eliminate mice that are already inside the house.

Snap traps and electronic traps tend to work more quickly than poison baits, which can leave rodents dying inside walls.

Place traps along walls where mice tend to travel.

Step 4: Use Deterrents to Discourage New Mice

Some homeowners try using strong scents such as peppermint oil or dryer sheets to discourage mice.

These methods may provide temporary results, but they are usually most effective when combined with sealing entry points and trapping existing rodents.

See our article on what smells mice hate to learn which scent deterrents work best.

Step 5: Seal Entry Points

Once the existing mice have been removed, sealing entry points is essential to prevent new rodents from entering.

Steel wool, hardware cloth, and caulking can help close small openings around pipes, vents, and foundation cracks.

Garages Can Lead to Mice Entering Cars

Many rodent problems begin in garages where mice first establish nests. Once they are living in a garage, parked vehicles can become attractive shelters.

Warm engine compartments provide protected places for mice to build nests, which can lead to chewed wiring and expensive repairs.

If you are concerned about rodents near your vehicle, see our guide on how to keep mice out of your car.

Get Rid Of Mice By Starting Immediately

The most effective way to get rid of mice in your house is combining traps, sanitation, and sealing entry points. Addressing the problem early can prevent a small infestation from becoming a much larger issue.