How Do I Get Mice Out of My Garage? | A Complete Guide

Mice can be a real problem once they start to infest parts of your home, such as the garage, attic, and pantry. Nonetheless, they’re most common in garages because it’s often one of the most overlooked places.

So, how do you keep mice out of your garage? You can keep the mice out of your garage by using the following method:

  • Sticky traps—These are glue-like traps that catch mice once they step on the sticky pad while searching for food.
  • Peppermint spray—The strong smell of this solution can keep the mice away from your garage. All you have to do is to put water into a spray bottle, add some drops of peppermint essential oil and spray it into your garage.
  • Keeping a dog or a cat—These two are natural chasers of mice.

In this article, we’ll discuss how common it is to have mice in your garage, how to keep them out and get rid of them without killing them.

Is It Typical to Have Mice in the Garage?

Is It Typical to Have Mice in the Garage

Mice are pretty common in garages because they have dark areas where they can hide and nest. On top of that, they can also get food and water sources from this site since cracks and crevices easily go unnoticed in this area. 

What Time Do Mice Come Out?

Since mice are nocturnal creatures, they’re typically active during dusk and dawn. They usually can’t be seen during the daytime, but these creatures sometimes go out in daylight if their nest is disturbed or they’re looking for food.

It’s best to note that seeing them during morning hours indicates a large infestation.

Are Mice in the Garage a Problem?

Are Mice in the Garage a Problem

Mice in the garage are a problem since they can damage your property and cause insect infestation. In addition, they can also pose health issues like lymphocytic choriomeningitis (LCMV), hantavirus, and salmonella.

To prevent this from happening, remove the things that attract them to your garage. This includes piles of stuff like old newspapers and empty boxes and sacks of grain, pet food, birdseed, leftover food, trash, and snacks.

Are Mice Bad to Have Around?

Mice are bad to have around your house as they can damage your property and spread diseases. These diseases include listeria, hantavirus, and salmonella that spread through their droppings, besting materials, and saliva.

Aside from carrying various diseases, mice are also known to nibble up wirings. So, it’s best to ensure that no mice can’t enter your garage as they can cause several damages to your property.

How Do I Know If There’s Mice in My Garage?

How Do I Know If There’s Mice in My Garage

You’ll know that you have mice in your garage if you smell an unpleasant, musky odor. Also, you can find tiny scratches on the wall and storage areas, droppings as well as shredded papers, and little squeaking noises.

How to Keep Mice Out of the Garage?

To keep mice out of the garage, consider doing the following:

Declutter and Organise Things in Your Garage

Mice like disorganized places, so make sure to discard the items that are no longer of use, such as cardboard boxes, old newspapers, and more. Arrange your other things neatly and use sealed bins and containers. 

Cleaning the Garage

Cleaning the garage is one of the best ways to keep the mice out. Clean up the dog food and grass seed strewn around the garage, and mice will have less interest in going there.

Seal the Gaps in Your Garage

Another way to keep mice out of the garage is to seal the gaps on the walls or the entry points. This way, you can ensure that no mice can enter your garage. You can use steel wool and caulk to fill the gaps and small holes, directing into the garage. 

Trim Back Plants and Bushes

Cutting back plants and bushes that touch the foundation of your garage. This way, mice will have less space to hide.

How to Get Rid of Mice in the Garage Without Killing Them?

If you want to get rid of mice in the garage without killing them, you can use the following method:

Peppermint Oil 

Mice have a sensitive smell, and the peppermint scent can be too strong for them. To use, get a cotton ball and soak it with peppermint oil. After that, place it into the area where there are suspected mice activities.

Citronella Oil 

Citronella oil is an effective ingredient in repelling mice. According to the National Pesticide Information System, rats steer away from areas sprayed by citronella oil. 

To apply, get a clean spray bottle and mix 1 ½ tablespoon of citronella essential oil and 1 cup of rubbing alcohol. After that, shake lightly and spray liberally into the suspected affected areas.

Live-Capture Traps 

Live-Capture traps are one of the most classic ways to get rid of mice without killing them. To use, get a plate and put some treats there for mice, such as soft cheese, peanut butter, and wet cat food.

The smell of these food items lures the mice into the trap. Once they enter the trap, the door behind them will shut. The trap will only imprison the mice and not kill them. Thus, you can release them in a secluded area, away from home.

Related: Mice Control: How To Get Rid of Mice? 

How to Repel Mice From the Garage?

If you want to repel mice from entering the garage, you need to make the garage as unattractive to them as possible. Consider using the following tips to make your garage rodent-free:

  • Put the grass seed, birdseed, and dog food in sealed bins or containers to prevent the mice from feasting.
  • Always keep the things inside the garage organized.
  • Repair the gaps and cracks ushering into the garage.
  • Trim back overgrown tree branches that touch the garage roof.
  • Transfer the trash cans outdoors and ensure they’re tightly sealed to avoid attracting mice.
  • Stack firewood outdoors away from your garage and home.

How to Seal Garage Door From Mice?

Mice seek warmth and food, especially during cold months, and the garage offers them both. If the garage is attached to your house, the mice can quickly enter the rest of your home.

Materials Needed

To seal the garage door from mice, you’ll need the following materials:

  1. Chalk
  2. Masonry adhesive
  3. Garage door threshold
  4. Copper mesh 
  5. Metal flashing
  6. Putty knife 
  7. Woven/welded hardware cloth
  8. Joint compound
  9. Steel wool 
  10. Foam caulk

These materials assist in sealing holes and gaps around the garage door, which is an essential step towards being a mouse-free household.

Steps on Sealing Garage Door

To seal the garage door using the materials above, you can follow the given steps below:

Step 1: Examine the garage threshold of the door (rubber strip), which can be found attached to the bottom of the door’s ground. Ensure that the door’s bottom is clean and dry, along with its ground.

Step 2: On the ground, put the threshold at the middle—between the tracks on the garage entrance door.

Step 3: With the use of a utility knife, trim the threshold to extend the full-width opening. Attach it securely to the garage door’s sides.

Step 4: Position the door’s threshold at a 45-degree angle against the bottom door. On the ground, mark the threshold inside’s edge using a marker like chalk. Open the door and outline the threshold’s outer edge.

Step 5: Pull out the threshold. Use two adhesive formulated beads for concrete or masonry into each line you’ve marked—3/4 of an inch back per line.

Step 6: Put adhesive in a zigzag between the first beads and the opening’s width.

Step 7: Allow the adhesive to cure based on the product direction. Once done, fibbed the threshold over the adhesive, aligning the rims with the marked lines on the ground.

Step 8: Adjust the garage door by lowering it and wiping the extra adhesive using a moist cloth.

Step 9: Position the metal door flashing on the bottom of the interior, along the wooden garage door’s sides. Flashing shields the door edges to prevent mice from chewing the wood.

Step 10: Examine there are gaps in your door and fill small holes by cramming temporarily with screen wire or steel wool. For durable restoration, blend a joint compound, preferably a quick-drying one into a copper mesh pile, then shove the blend into the wall gap. In filling and smoothing, utilize a putty knife to patch the door.

Step 11: Start repairing the holes bigger than 3 inches by wrapping them using a ¼ of an inch of welded or woven hardware cloth. Then, fill the hole with a foam caulk or joint compound.

Step 12: Stuff the holes along the foundation of your garage area and walls with a concrete mixture and copper mesh.

Will Mice Leave if There is No Food?

The reason why mice invade homes is for food, water, and shelter. Moreover, they can only go for two to four days without food. In short, they’ll leave the place if there’s no food after two to four days.

Where Do Mice Hide During the Day?

During the day, mice are typically asleep. They are away in their nests that are made from soft materials like shredded paper, insulation, cotton, or cardboard boxes.

Where Do Mice Nest in the Garage?

These rodents crawl along the wall’s edges, so you probably won’t see them sprinting in a room. Look for bag holes that look chewed up by mice and look for light coming through holes, open spaces, cracks, and crevices. 


Mice can cause terrible damage to your home and nibble upon wirings. They also carry various diseases such as hantavirus, leptospirosis, and salmonella.

Thus, making sure that they won’t be able to enter your garage or any part of your home is a must. You can follow the given methods above or call a professional pest control expert to handle the mice problem for you.

List of Sources

Bond, C., Buhl, K., Stone, D. (2013). Citronella General Fact Sheet. National Pesticide Information Center, Oregon State University Extension Services.

Lymphocytic Choriomeningitis (LCM). (2014). Centers for Disease Control and Prevention.

Trap Up! (2010). Centers for Disease Control and Prevention.

Hantavirus. (2021). Centers for Disease Control and Prevention.