What to put in holes to keep mice out?

Author: Kenyon Graham  |  Last update: Thursday, May 21, 2026

Seal any holes you find to stop rodents from entering. Fill small holes with steel wool. Put caulk around the steel wool to keep it in place or use spray foam. Use lath screen or metal, cement, hardware cloth, or metal sheeting to fix larger holes.

What do you fill holes with to keep mice out?

Put steel wool in the hole and cover with expanding foam like Great Stuff. The mice will start to chew through the foam, but will stop at the steel wool.

What material can mice not chew through?

Don't use plastic sheeting, wood, rubber or a screen to close off an area because the mice can gnaw right through it. A mixture of steel wool and caulking compound makes a good plug to seal small openings. You can't use steel wool on its own because the mice will be able to pull it out or chew through it.

What smell will keep mice away?

Mice have a very strong sense of smell and are often repelled by very strong odors like cinnamon, vinegar, dryer sheets, clove oil, peppermint, tea bags, and cayenne pepper. I decided to try diluting peppermint oil in a spray bottle and misting it around my feed room and tack room.

How do I stop mice from digging holes?

Stuff the holes with steel wool and then use spray foam to seal it up then cover back up with dirt. The mice do not like chewing through the steel wool.

Finding a Mouse Hole and Filling it to keep out mice and other pests

What can I put in a mouse hole in my yard?

The best mice hole filler for outdoor applications combines steel wool and caulk.

What do mice hate the most?

13 scents that mice hate and can help you to keep them away
  • Cinnamon. This has a strong and spicy aroma that mice probably hate. ...
  • Vinegar. Mix some water and vinegar in a spray bottle to mist any areas where they have been seen more often.
  • Dryer sheets. ...
  • Cloves/clove oil. ...
  • Peppermint oil. ...
  • Teabags. ...
  • Mint toothpaste. ...
  • Ammonia.

How do you keep mice away permanently?

To discourage mice, remove all food sources by storing grains, pet food, and other dry goods in metal containers. Make sure mice won't find nesting material by storing all soft, fluffy material like fabric, rugs and blankets in heavy plastic or metal boxes.

What does Epsom salt do to mice?

But Epsom salt isn't just good for humans! It can also be used to repel rodents due to its acrid smell. Sprinkling Epsom salt onto your trash can lid or around areas where rodents are known to burrow creates a protective boundary that can keep them away.

Do dryer sheets keep mice away?

Dryer sheets do not repel mice. The belief that dryer sheets can repel mice has gained popularity over time, primarily due to the assumption that scent of dryer sheets might deter rodents. However, this is a misconception, and using dryer sheets as a mouse repellent is not a reliable or proven method.

How do I get rid of mice in my house asap?

How to get rid of mice in your house
  1. Eliminate entry points.
  2. Use mouse traps.
  3. Choose the best bait for mouse traps.
  4. Proper placement of mouse traps is critical.
  5. Place bait stations carefully in the house.
  6. Good sanitation won't get rid of mice, but poor sanitation will attract them.

Will duct seal keep mice out?

You can keep rodents and bugs out of your home through duct sealing. Some of the things needed for effective duct sealing include screwdrivers (for opening vent entries), safety gloves, traps, baits, fine wire mesh, torch, soap and plastic bags for disposing off the dead rodents/ bugs.

Will aluminum foil stop mice?

It may seem like a folk remedy, but aluminum foil is actually an effective natural mouse repellent. Mice dislike the sound and smell of aluminum foil. And even though they are good climbers, they just can't cling to it. To use aluminum foil to repel mice, wrap it around the objects you want to protect.

What is the great stuff to stop mice?

Great Stuff™ Pestblock Insulating Foam Sealant is a ready-to-use foam sealant that expands up to 1” to take the shape of gaps, creating a long-lasting, airtight and water-resistant seal that blocks out spiders, ants, cockroaches, mice and more from entering the home without the use of pesticides.

What do farmers use to keep mice away?

Staff at PaulB Hardware in Lititz, which serves a large agricultural customer base, recommends a product called Fresh Cab. It can repel rodents for up to 3 months, by using a smell that would be extremely offensive to pests, but smells like air freshener to humans.

What does white vinegar do to mice?

Vinegar works by masking smells and oils which will deter mice and rats from entering an area or chewing on any material. However, it needs to be used with other methods since vinegar by itself will not keep rodents away from your home.

What is the best homemade mouse repellent?

These spices scream KEEP AWAY 🐭 Instructions: Take favor bags and add one star anise, one cinnamon stick, 1 tbsp each of cloves and red pepper flakes. Tie the bags and place them near openings to the outside which could attract mice and in cupboards and closets. Added bonus is they make your house smell like Christmas.

Do mice hate pine sol?

Mice generally avoid the smell of Pine Sol. The strong scent is unpleasant for them, and they tend to steer clear of areas treated with Pine Sol. While it is not guaranteed that all mice will avoid Pine Sol, it effectively deter most mice from the treated areas.

What smell do mice absolutely hate?

The strong scent of peppermint is overwhelming to mice. Similarly, essential oils such as eucalyptus oil, bergamot oil, clove oil, and cinnamon oil are potent in keeping mice at bay. One study noted that eucalyptus oil applied once a day was more effective as a rat repellant than once a week.

What is the number one way to get rid of mice?

The best way to get rid of rats or mice is by using traps. If using spring loaded traps for rats, bait three of them in a row without setting them. Bait with dried fruit, peanut butter mixed with oats, or cheese.

Does Irish Spring soap keep mice away?

Irish Spring soap is not likely to keep mice away from your house– and the strong fragrances could even be attractive to them. Rats & mice might initially be deterred by the overwhelming odor, but after a while they'll get used to it, and may even take a nibble to test it as food.

What is the number one mice repellent?

What is the most effective mice repellent? In our experience, the most effective mice repellent is the Rodents Away Odor Free Pouches. But if you're looking for the easiest DIY treatment to use, you can go the ultrasonic pest repellers route with the LONAOO ultrasonic repeller.

What kills mice asap?

Zinc phosphide is an acute toxicant that causes the death of a house mouse within several hours after a lethal dose is ingested. It appears to be the fastest way of getting rid of mice by reducing their population.

Who is the biggest enemy of mice?

House mice fall prey to owls, hawks, cats, dogs, skunks and snakes. Barn owls are particularly efficient mice predators. A single family of these owls can consume more than a dozen mice in one night. House mice usually live only one year in the wild due to predators and exposure to unfriendly environments.

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