How to Stop Mice From Getting Under a Door {Pest Proof A Door} | The Pest Management : Tips to Control Pests (2023)

Do you believe the gap underneath your door is way too small for a mouse to fit through? I’m sorry, but you may be very wrong about this. It’s time to find out how to stop mice from getting under a door.

How do you pest-proof a door? Do you know about door metal guards, excluders, bristle strips, door sweeps and rubber guards?

It’s time to look into the details about how to stop mice from getting under a door. This article will also help you to pest-proof your doors from other rodents and insects as well.

How to Stop Mice From Getting Under a Door

The first step is to make sure that your doors are closed and that there are no holes, cracks or crevices alongside the hinges.

Prevent mice from entering by using door sweeps, rubber guards, bristle strips, metal mesh wiring on screen doors and excluders.

Also consider placing deterrents such as cayenne pepper or peppermint oil underneath doorways.

How to Stop Mice From Getting Under a Door {Pest Proof A Door} | The Pest Management : Tips to Control Pests (1)

How Do I Stop Mice From Coming Under My Door?

Stopping mice from entering under your door may involve rubber seals or steel mesh. You may use an item called an excluder. This is a type of door sweep that is made of aluminum or vinyl.

The sweep underneath the door can mount to pretty much any type of entry or exit. It must make contact with the floor to create a threshold. This will create a gentle seal that will make it practically impossible for a mouse to get in or out.

Keep in mind that a gap of 0.8 inches in diameter is all it takes for a mouse to be able to squeeze underneath your door.

Will Putting a Towel Under the Door Keep Mice Out?

A towel underneath the door is not enough to keep a mouse out of your room. This is because the mouse is able to dislocat its skull and slip right underneath the gap of a towel. A towel is too soft and does not create enough of a seal.

(Video) Tips for dealing with rats and mice from our Pest Control Officer

A mouse can slip through the gap the thickness of a pencil. If you are using towels or clothes underneath your doorway, you may be able to get away with it, but some resilient mice will find their way through.

It is better to consider a door excluder or door sweeps made of metal or rubber that are thicker and act as tougher deterrents for mice to get through.

What Can I Put Under My Door to Keep Mice Out?

If you would like to keep mice out of rooms and prevent them from slipping underneath doors, you should consider a metal door draft stopper. These are made of aluminum alloy instead of rubber.

Rodents like mice will have a difficult time trying to find a way underneath it. Even though mice can dislocate their skulls and fit through gaps the size of a pencil, the metal door draft stopper will create enough of an intrusion to prevent mice, rats are other insects to get through.

You can also purchase metal door stoppers that include rubber sweeps with an aluminum alloy block. This will make contact with the floor but still allows you to easily open and close the door.

How to Stop Mice From Getting Under a Door {Pest Proof A Door} | The Pest Management : Tips to Control Pests (2)

Can Mice Get In Under Doors?

Yes. Mice can get underneath the doors. Even if your door has the tiniest gap that would be way too small for the body of a mouse to fit through, you would be surprised at what a mouse can do.

They can dislocate their skulls, flatten their rib cages and fit through gaps the thickness of a pen 0.8 inches in diameter. This is why you should consider draft excluders or metal door stoppers with rubber rubber sweeps at the bottom of your door.

This will seal the gap and make contact with the floor to prevent a mouse from being able to slip through.

(Video) Rodent proof bristle strips

How Do You Pest Proof a Door?

Pest proofing the door would disallow pests from entering buildings and rooms. They are adapted to fit through the tiniest of gaps. This includes mice. If you would like to rodent-proof a door, you should install a door sweep.

It creates a threshold at the bottom. You can also consider weather stripping around the sides or the top of your door as well. In this way, you can pest proof a door.

There should be no gap underneath the doorway because a mouse can flatten its rib cage and dislocate its skull to be able to fit through.

Any other insects smaller than a mouse would have a very easy time to slip through doorways that do not have draft excluders or rubber door sweeps.

Do Door Sweeps Keep Out Mice?

Yes. A door sweep is your best solution for keeping mice from slipping underneath your doors. A door sweep is fast and smart solution. You should also consider weather strips and seals around the sides and top of your door as well.

Excluding the access of rodents from entering your home would require you to use an excluder that covers the gaps underneath doors.

A mouse can slip underneath the door that is revealing a gap 0.8 inches or more in diameter. If you can fit a pencil underneath the door, a mouse can slip through as well.

How to Stop Mice From Getting Under a Door {Pest Proof A Door} | The Pest Management : Tips to Control Pests (3)

What Is an Excluder Door Sweep?

An excluder door sweep fills gaps underneath doors and creates impenetrable barriers for rodents and other pests from slipping through underneath. They usually come with weather seals as well. You can install it on just about any door.

If you have gap underneath of 1 inch, you can still end up with mice being able to flatten the rib cages slip through the opening.

Door excluders are built with aluminum, copper, bronze or rubber. They can install easily and give you the assurance of preventing rodents or other insects from entering underneath the doorways.

(Video) Professional pest proofing strategies

Do Brush Door Sweeps Keep Mice Out?

Are you wondering do bristle strips stop mice? If you are considering a brush door sweep, you may not be able to exclude all rodents or insects. It will exclude them from entering, but there are resilient rodents like mice who can persevere through these bristle strips.

The strips must be able to make contact with the surface of the floor. The door must be able to open and close without the strips impeding its ability. Door sweeps made of aluminum or rubber work better than bristle strips in our opinion.

What Can I Put Under a Door to Stop Mice from Entering?

If you’re looking for a quick solution with an item handy in your house, look for the following:

  • hardcover books
  • a piece of timber
  • peppermint oil
  • cayenne pepper
  • ammonia

The first two items will deter a mouse from entering underneath the doorway and the latter three items will repel a mouse from wishing to cross through this gap.

These are temporary solutions and we still recommend that you purchased door sweeps, excluders, weather strips or other types of seals that you can place a underneath the door made of aluminum or rubber.

How to Stop Mice From Getting Under a Door {Pest Proof A Door} | The Pest Management : Tips to Control Pests (4)

Pest Proof Doors to keep Rodents Out

Mice and rats are able to enter buildings underneath exterior doors. You must try to improve this design flaw. Install door sweeps to create a threshold underneath. They can be made of vinyl, rubber or aluminum.

A tight-fitting door sweep is like a strip that creates a seal underneath your door to prevent mice, other rodents and insects from entering. It operates like a kick plate but it should not interfere with the swinging of the door.

Weather stripping around the door also helps to seal any other gaps that rodents can get through. We highly recommend a door metal guard with a rubber seal underneath it. The metal guard is usually made of aluminum alloy.

Mice or rats are able to smell what’s cooking underneath the doorway. Make sure the area underneath the door is clean with soaps, bleach, ammonia or repellents like peppermint oil. This will prevent many rodents or insects from wishing to enter.


Mice are able to chew through many materials to be able to fit underneath doorways. They can also dislocate their skulls and flatten their rib cages to be able to fit through gaps that you consider to be way too small for a rodent that size to squeeze through.

(Video) Keep rodents out of your garage

If a pencil can fit underneath the doorway, so can the mouse. When mice enter, they can carry fleas with them and other types of illnesses that could become a bigger issue for you.

Besides installing door strips such as excluders or sweeps on a door made of aluminum or rubber, we also recommend that you place deterrent foul-smelling odors such as ammonia, cayenne pepper or peppermint to deter mice from wishing to enter.

Thanks for visiting for the best information to help you to make the pest control process easy, safe & affordable.

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Home » Rodents » » How to Stop Mice From Getting Under a Door {Pest Proof A Door}

(Video) EASY WAY to Get Rid of Mice in Your House FOREVER - No More Mousetraps!


How do I keep mice from coming under my door? ›

How to Deter Mice Naturally
  1. Doors - fitting bristle (or brush) strips to the bottom of doors prevents entry, especially in older properties where the door fit may not be snug.
  2. Pipework - seal holes around existing or new pipes with coarse grade stainless steel wire wool and caulking (pliable sealant).

How do you pest proof a door? ›

Add weatherstripping or door-seal kits to the perimeter of the frame to keep insects from entering along the sides or top of the door. Use a clear caulk to seal the joint where the door frame meets the wall and also along the bottom of the frame, at the area where it meets the ground.

What can I put on my porch to keep mice away? ›

Keep Animals Out From Under Porch, Deck, or Shed
  1. Step 1: Clear Vegetation and Debris.
  2. Step 2: Set Out Rodenticide, Repellent, or Humane Traps. Make the space inhabitable by repelling the animal with a repellent or using a rodenticide for rats and mice. ...
  3. Step 3: Block Access to Hiding Places.

Can mice get under door sweep? ›

Keeping mice out requires a door sweep with a little more rigor. You should test doors with sweeps even if they look well installed. Mice will either push through these sweeps or chew off a few bristles.

What scent will keep mice away? ›

But what exactly do mice and rats hate to smell? Mice can be kept away by using the smells of peppermint oil, cinnamon, vinegar, citronella, ammonia, bleach, and mothballs.

Can mice travel under doors? ›

Rats and mice can crawl through very small spaces (under doors, into crevices, etc.) and when they can't fit, then they simply gnaw and chew their way through.

How do you barricade a front door? ›

If the door only has a knob or handle, secure it with an extension cord, necktie, or belt, and tie it to a nearby heavy object. If the door has a hinge at the top, you can wrap a belt around the hinge so it can't open. If it's a set of double doors, tie an extension cord or belt around the handles.

Does Irish Spring soap keep mice away? ›

The bottom line is the perfumes in this soap tell mice, rats, chipmunks, and other critters to stay clear. Irish Spring comes in different scents and varieties, and I have found that as long as it is Irish Spring in general it will work just fine.

Do dryer sheets keep mice away? ›

Do Dryer Sheets Keep Mice Out? Don't expect your box of Bounce to work any pest-control miracles. Dryer sheets don't deter mice. Baited traps won't solve a mouse problem, either.

Does Pine Sol keep mice away? ›

Does Pine Sol deter rodents? As will most cleaners, Pine-Sol contains properties that may deter rodents and other types of pests; however, this is not a viable solution as a pest control measure.

Will a rubber door sweep keep mice out? ›

Rodents dislike the feeling of the bristles. Rodents cannot chew through the bristles like rubber or vinyl.

What scares mice out of hiding? ›

A great way to bring mice out of hiding and steer them in the direction you want them to go is to sprinkle potent scents they find particularly unpleasant. Mice don't like the smell of garlic, onions, cayenne pepper, cloves, ammonia and alcohol.

What is the best treatment to get rid of mice? ›

Humane trapping is the best way to go. In general, traps are preferred over poison bait as they are less hazardous to children and pets. But if you're dealing with a severe infestation that can put your family at risk, consider using spring traps or calling a professional pest control company.

What home remedy gets rid of mice fast? ›

How to get rid of mice naturally?
  1. Use essential oils like peppermint/clove. ...
  2. Apple cider vinegar. ...
  3. Deter them using mothballs. ...
  4. Place open ammonia bottles in spots. ...
  5. Use steel wool to pack spaces. ...
  6. Seal entry/exit points with tape or sealant. ...
  7. Set up mouse traps. ...
  8. Place kitty litter at strategic points.

Will keeping lights on keep mice away? ›

Unfortunately, the light inside your house is not a very effective deterrent to mice. Once inside a house or a building, they can easily look for dark areas to hide until such time as all lights are turned off. Places they can hide include inside the walls, crawl spaces, attics, and ceilings.

What liquid keeps mice away? ›

Peppermint oil is also a frequent recommendation for deterring mice in the home. Like other essential oils, peppermint oil has shown varied repellent effects on wildlife.

Do ultrasonic pest repellers work on mice? ›

To the mouse, the frequencies will sound like a loud jackhammer. This isn't just insufferable to rodents, but the product claims to repel insects as well. So, do ultrasonic rodent repellents really work? The short answer is no, ultrasonic rodent repellents don't work.

Does peppermint oil actually repel mice? ›

A quick search online explained that mice find the smell of peppermint overwhelming and confusing, so they stay away from the scent.

Do door jammers work? ›

Door jammers are some of the most effective types of security devices, and they're a great option for anyone looking for a simple way to enhance their door's safety. They're also especially useful for renters and travelers who don't have permission to permanently alter the lock on their door.

What household items can I use to barricade a door? ›

1: Use a rope, power cord, or belt to tie the doorknob to a nearby heavy object. 2: Tape a broom handle perpendicular to the door frame, tying the handle to the doorknob to hold the door shut. 3: If applicable, secure a belt around the top of the door hinge.

What is a door sweep? ›

An exterior door sweep is a device that helps to seal the space between the bottom of a door and the threshold. Door sweeps are installed on the outside face of the door, preventing dust, water, and other elements from building up beneath the door and entering the home.

Do moth balls keep mice away? ›

Mothballs are meant to kill moths, eggs and larvae, but are also used to keep rats, mice and squirrels away. Those containing paradichlorobenzene are safer than mothballs containing naphthalene. As little as one mothball can be toxic when swallowed.

Will mice leave if they smell mothballs? ›

Mothballs repelling mice and rats is a common misconception. Mothballs contain a small amount of naphthalene and can be a deterrent in large quantities, however, they aren't powerful enough to get rid of mice and rodents.

Does WD 40 repel mice? ›

WD-40 also helps keeps these pesky rodents at bay. I usually spray a little inside the bonnet in a few areas and have not had problems till date. Well WD40 says its safe to use on rubber.

What material do mice hate? ›

Peppermint oil, cayenne pepper, pepper and cloves.

Mice are said to hate the smell of these. Lightly soak some cotton balls in oils from one or more of these foods and leave the cotton balls in places where you've had problems with mice.

Does aluminum foil keep mice away? ›

Mice hate the sound and smell of aluminum foil.

They also can't grip onto it, despite generally being good climbers. If you want to use aluminum foil to keep mice away naturally, wrap it around the objects you want to protect. Mice will avoid them completely.

Is it possible to mouse proof a house? ›

Use rodent exclusion materials like heavy-gauge wire screening to cover holes, metal mesh to stuff into holes around pipes, and expanding foam sealant to spray overtop of metal mesh and fill other gaps and cracks. Seal all potential entry holes or gaps in walls, foundations, sheds, crawl spaces and under porches.

Can you spray anything to deter mice? ›

Spray Peppermint Oil for Mice

Spray the essential oil in different areas of your home that mice can access. If you're trying to catch the mice, strategically spray the peppermint oil in places that don't have a mousetrap.

What keeps mice away at night? ›

Aromas like peppermint, spearmint, and eucalyptus repel rodents. Set up a diffuser or use cotton balls to spread their smell throughout your room. Not only will they keep mice away—they'll also make your room smell great. Ammonia, found in many cleaning products, is another smell that rodents hate.

Do mice like coffee grounds? ›

Do Used Coffee Grounds Keep Rodents Away? The answer to this question is yes, use coffee grounds as a natural rodent repellent. The coffee's bitter compounds are unpleasant to rats and mice. They will avoid areas where there is a coffee scent or use.

Can mice come through front door? ›

A mouse can enter an opening the size of a dime. This is where door sweeps for rodent control come in.

Do Clorox wipes keep mice away? ›

Mice do not like the smell of bleach. According to a study published online about odor and the feeding behavior of female rodents, mice and many other rodents hate strong smells. So, the unbearable pungent smell can repel them, keeping them off properties where they are sprayed.

What time do mice come out at night? ›

Mice are nocturnal creatures, so they are most active between dusk and dawn. They don't usually like bright lights, but a mouse may sometimes be seen during the day, especially if its nest has been disturbed or it is seeking food.

Why are mice so hard to get rid of? ›

This is because they can slip through holes the size of a dime. It's nearly impossible to remove all entry points that mice can use to get inside. They can fit through holes in the walls or through broken screens. Then, once inside, it's even harder to get rid of an infestation.

Is it ever just one mouse? ›

Mice multiply very fast so it is impossible to just have one mouse in the house. As early as six weeks, a female mouse is sexually mature and ready to produce pups. A female mouse who gives birth can actually produce five to six mouse pups per litter. However, it can also reach up to 12 mouse pups in rare instances.

How long does it take an exterminator to get rid of mice? ›

It will depend on the degree of infestation, but typically it takes 1-3 months for exterminators to get rid of mice.

Why do I have mice in my house all of a sudden? ›

There are two main things that can attract mice and rats to your house – food and shelter. If you don't tidy up properly and there's food waste on the floor or surfaces, rodents are going to love it! Rats and mice also need shelter, particularly during winter to avoid the worst of the cold.

How do you keep mice away at night? ›

How to Keep the Mice Away from the Bedroom
  1. Keep the Room Tidy. Mice are opportunistic feeders that are attracted to the small crumbs and leftovers dropped after snacking inside the bedroom. ...
  2. Block All Possible Access. ...
  3. Let Your Cat Sleep in the Room.
  4. Use Different Repellents.
  5. Set Some Traps.
Dec 15, 2020

Does keeping lights on keep mice away? ›

Unfortunately, the light inside your house is not a very effective deterrent to mice. Once inside a house or a building, they can easily look for dark areas to hide until such time as all lights are turned off. Places they can hide include inside the walls, crawl spaces, attics, and ceilings.

How do you find where mice are getting in? ›

Look closely at your foundation for cracks or gaps where a mouse could squeeze through. Wherever possible, climb underneath porches and look behind stairs, bushes, or other objects. There may be holes that have been made larger over the years by water damage and chewing pests.

What time of night do mice become active? ›

Mice are nocturnal creatures, so they are most active between dusk and dawn. They don't usually like bright lights, but a mouse may sometimes be seen during the day, especially if its nest has been disturbed or it is seeking food. Seeing them in the day also can indicate a large infestation in a home.


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