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How To Keep Mice Out of the Garage in Winter

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Winter months can bring a flurry of unwanted guests into our homes and garages. Mice, in particular, seek out warm and sheltered spaces to take refuge from the cold weather. Your garage is an attractive spot for them, but their presence can cause a lot of damage and health risks. Here’s a comprehensive guide on how to keep mice out of your garage in winter.


To keep mice out of your garage in winter, start by sealing all cracks, holes, and gaps to block their entry. Make your garage unappealing by keeping it clean, organized, and cold, and store food in airtight containers. Use natural repellents like peppermint oil or cinnamon, and consider professional pest control services for severe infestations. Always take precautions when handling mice, including wearing gloves and using proper cleaning and disinfecting methods.

Understand Why Mice Choose Garages

Mice choose garages as their winter retreat for several reasons. Garages typically see less human activity, offer access to food sources, provide warmth and shelter, and have plenty of hiding places. Read more details here.

Signs of Mice in Your Garage

Before you start preventing mice from entering your garage, it’s important to know if they’re already there. Look for signs like droppings, noises, gnaw marks, urine trails, nests, greasy marks, and odd pet behavior. Find more information here.

How to Keep Mice Out of Your Garage

Maintaining a mice-free garage involves two primary tasks: blocking their entry and making your garage unappealing to them.

Blocking Entry

Mice can squeeze through tiny gaps, so seal all cracks, holes, and gaps using silicone caulk, steel wool, or concrete mortar. Install door sweeps and rodent-proof door seals. For an in-depth guide on how to seal your house from rodents, click here.

Making Your Garage Unappealing

Keep your garage clean, organized, and cold. Store food in airtight containers and use natural repellents like peppermint oil, cinnamon, and vinegar. Trim trees and shrubs around your garage and maintain your garage’s exterior. For a more detailed guide on how to make your garage unattractive to mice, click here.

Professional Services and Products

If you are facing a severe infestation, consider hiring professional pest control services like Terminix or Orkin. You can also use products like rodent repellents, exclusion materials, traps, and ultrasonic devices. For a review of the best pest control services, click here.

Natural Ways to Repel Mice

If you prefer natural methods, use peppermint oil, cinnamon oil, keep your garage clean, seal entry points, and store food in sealed containers. For more natural ways to repel mice, click here.

Precautions When Handling Mice

Always wear gloves and other necessary Personal Protective Equipment (PPE). Use proper handling techniques, ventilate the area, use appropriate cleaning and disinfecting methods, and wash hands thoroughly. For more information on how to handle mice safely, click here.

By following these comprehensive steps, you can effectively keep mice out of your garage in winter, ensuring a clean, safe, and peaceful environment. Remember, a combination of these methods will likely be more effective than relying on just one. Stay vigilant, and keep your garage mice-free this winter!

Frequently Asked Questions

What are some other natural repellents I can use to keep mice away?

Other than peppermint oil and cinnamon oil, you could use mothballs, ammonia, cloves, bay leaves, and cayenne pepper to deter mice. These strong-smelling substances are natural mouse repellents.

How often should I clean and organize my garage to keep it unappealing to mice?

Ideally, you should clean and organize your garage at least once a month. Regular cleaning helps to eliminate potential food sources and hiding spots for mice, reducing their attraction to your garage.

Can I use regular door seals to block mouse entry?

Regular door seals might not be sufficient to prevent mice from entering. Mice can chew through many materials. It’s recommended to use rodent-proof door seals, which are designed to withstand gnawing.

Is it safe to handle mice without professional help?

It’s possible, but precautions should be taken. Always wear gloves and other necessary personal protective equipment when dealing with mice. After handling, properly ventilate the area, clean and disinfect the space, and wash your hands thoroughly.

Why do I need to trim trees and shrubs around my garage?

Mice are excellent climbers and can use overgrown trees and shrubs to gain access to your garage. Trimming vegetation around your garage can eliminate these potential entry points.

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