• Get Rid of Mice Fast
    • Keep Mice Out Of The Basement
    • Keep Mice Out of the Barn
    • Natural Home Remedies To Get Rid Of Mice
    • How to Hire a Mouse Exterminator
    • Mouse Exterminator Secrets
    • Mouse Exterminator Costs
    • How To Get Rid Of Mice In the Attic
    • How to Get Rid of Mice in your Apartment
    • Keep Mice out of Cars & RVs
    • How to Safely Use Poison to Kill Mice
    • Mouse Infestation:Health Risks and Solutions
  • The Best Mouse Traps
    • What are the Best Snap Traps for Mice?
    • The Best Electric Mouse Traps
    • Humane Mouse Trap Reviews – Pros and Cons of the Best
    • Havahart Mouse Trap Review
    • Snap-E Mouse Trap Review
    • Mouse Trap Bait
  • Mouse Prevention Tips
    • How Do Mice Get In?
    • Keep Mice Out of the Yard
    • Ultrasonic Pest Repellers
    • Peppermint Oil
    • 6 Ways to Repel Mice
    • Fresh Cab Rodent Repellent Review
    • Get a Cat
    • How to Keep Mice Out of the Garage
  • Facts About Mice
    • Types of Mice

How to Get Rid of Mice

How to get rid of mice and keep them out of your home. Proven tips to get rid of mice quickly and safely.

How To Keep Mice Out Of The Basement

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Mice are crafty and resourceful creatures. They make their way through the tiniest of spaces and turn your home’s basement into their home.

bedroom basement with mice hiding in the corners and under the furniture

Don’t let their cute appearance fool you – mice are nightmare roommates that will wreak havoc on your home and your health. If you have mice in your basement, it’s important to act quickly to get rid of them and prevent them from coming back.

Here’s how to keep mice out of the basement:.

Why are There Mice in the Basement?

What is it about basements that attract mice? They’re great places to hide. Whether you have a finished or unfinished basement, it’s the perfect place for rodents to sneak in and make themselves comfortable.

The basement boiler room with heater in the corner. Many basements contain our heaters which put out extra warmth even that can attract mice.

Basements are warm enough to attract the mice and normally provide enough nesting materials to keep them happy. Humans rarely venture down there, so they don’t have to worry about being caught.

But there’s another reason why mice are so attracted to basements: They’re burrowing creatures that prefer to live underground in the wild. Basements are the next best thing, and they offer extra protection from predators, like birds and foxes.

More importantly, it’s easy for mice to access other areas of the house from the basement. They can sneak up into the kitchen without catching anyone’s attention.

Dog bowl full of food on the kitchen floor.  Even in the cleanest kitchen, food has a way of finding its way to the floor when mice can find it.

Mice are attracted to human homes because they have everything they need to survive: food, water, and warmth. Common house mice will eat anything they can get their paws on. Your home kitchen is an all-you-can-eat buffet, and if you use your basement for storage, those cardboard boxes are excellent for building nests.

In the cold winter months, even a dark, damp basement beats the outdoors.

How do Mice Get into Basements?

Most homeowners are surprised to find mice in their homes, but it’s easier than you think for rodents to find entryways.

side view of little house mouse

Mice can make their way into basements through cracks in the foundation, floors or walls. Because they are burrowing animals, mice can squeeze through tiny openings (as small as 7.5 mm or a 1/4 inch). They don’t have collarbones, and their fur makes them appear much larger than they really are. In fact, the average mouse is 1-7 inches long and weighs 1 ounce or less.

A mouse’s only limitation is his skull. If he can squeeze his head through a crack or hole, the rest of his body will fit through.

One telltale sign of a rodent problem is finding evidence of mice in basement insulation. You may also find droppings in your basement or nesting materials.

How to Insulate Your Home to Keep Mice Out

Mice can wreak havoc on your home and your health. Rodents are known to carry:

  • Salmonella
  • Hantavirus
  • Lassa fever
  • Hemorrhagic fever
  • Omsk hemorrhagic fever
  • Lymphocytic chorio-meningitis
  • Rat-bite fever
  • Plague
  • Tularemia
  • South American Arenaviruses

Exposure to their droppings can make you sick, but health concerns aside, mice can also cause serious damage to your home. They chew wires and just about anything else they can get their teeth on, including cloth, paper, wood, and books.

If you see signs of a mouse in your basement, it’s crucial to insulate your home and use traps to get rid of mice and keep them from coming back. Since as you know if you see one mouse, there are likely many, many more hiding nearby.

Sealing Cracks and Openings

The best way to keep rodents out of your home is to seal up cracks and openings with pest expansion foam and steel wool.

Just as the name suggests, pest expansion foam will expand to fill in tiny cracks and crevices that you may miss with other sealing products (like caulk).

There are two main types of expanding foam:

  1. Polyurethane: Porous when dry and can be cut with a bread knife for shaping.
  2. Latex: Rigid when dry and difficult to manipulate, but can be sculpted when wet.

When sealing holes, it’s best to first pack steel wool into the opening until it’s sealed tightly. The steel wool serves as a foundation for your foam that mice can’t chew through.

Next, add the spray foam and use a putty knife to shape as desired. Proper sealing of cracks and openings is the best way to keep mice out of your basement and the rest of your home.

Just take a look at this video to see what can happen when mice get into the installation in your basement!

Use Wire Mesh

For cracks around drainpipes and wall openings, use wire mesh. Secure the mesh over the openings, and use quick-drying concrete to seal it into place. Mice won’t be able to chew through the wire.

Install Covers When Necessary

You may have entryways that you can’t block off entirely. These areas can leave your home vulnerable to mice infestations.

To keep rodents and other pests out, install a cover with a flap. The flap should face the exterior. This way, mice can get out, but they can’t get back in.

What is the Best Mouse Trap for a Basement?

Insulating your home will keep mice out, but what about the critters that are already in your basement? Traps will do the trick.

Which traps work best?

Ultrasonic Mouse Repellers

Ultrasonic repellers are small devices that emit high-frequency or ultrasonic noise. These sounds, which are more than 20,000 Hz, are intolerable to mice and other rodents. Fortunately, these sounds are undetectable to the human ear and don’t seem to bother household pets. Ultrasonic sounds are believed to cause unpleasant symptoms in rodents, such as confusion and even convulsions.

What’s great about ultrasonic devices is that they’re not traps, they’re repellents. They chase mice away, so you don’t have to worry about cleaning up dead animals or any of the unpleasantries that come with trapping and killing rodents.

T3 R Triple High Impact Repeller

Our Favorite: T3-R Triple High Impact Mice Repeller

The T3-R repeller chases away mice, rats, squirrels and other rodents using ultrasonic sounds.

Unlike plug-in ultrasonic devices, the T3-R stands on its own and comes with a long, 6-ft cord. The unit uses three specially-designed speakers to transmit sound at three locations on the device.

T3-R says most rodents leave within 12-16 days of using the device.

Electric Mouse Traps

An electric trap uses a high-voltage shock to kill mice almost instantly. Most models have similar designs. High-value bait (usually protein) is placed inside a chamber. Mice sniff out the bait and walk inside the chamber to eat. The trap’s sensors detect the mouse, and the device delivers a shock that kills the mouse almost instantly.

Because they’re powered by battery, electric traps can be placed anywhere in the home. The mouse remains enclosed in the chamber, so you don’t have to worry about your children or pets finding dead mice around the house.

Victor M250S gets our vote for the best electric mouse trap - shown here in the house

Our Favorite: Victor M250S No Touch, No See Electric Mousetrap

The Victor M250S is arguably the most popular electric mouse trap, and that’s because it works so well. The no-touch, no-see design allows you to dispose of mice quickly and safely.

The M250S has a 100% kill rate. An LED indicator light blinks green when a rodent is caught. The trap also has an indicated bait cup, so you know exactly where to place the bait. The beveled columns prevent mice from escaping and ensures the safety of children and pets. The kill chamber is easily removed for quick and easy cleaning.

The M250S is powered by 4 AA batteries and can be placed anywhere in your home.

Classic Snap Traps

When most people think of mouse traps, snap traps are what come to mind. Snap traps are easy to find, cheap and highly effective if you use the right bait.

While they may seem inhumane, snap traps can kill instantly when set properly. When the mouse takes the bait, it triggers the trap to release a bar that comes down on the neck. The bar snaps the mouse’s neck, killing it almost instantly. The main concerns with snap traps are:

  • Having to touch and clean up the dead bodies
  • Worries about pets or children accidentally triggering the trap and becoming injured
An empty Snap-E trap

Our Favorite: Snap-E Mouse Trap (6-Pack)

Snap-E’s mouse trap comes in a pack of six and is completely reusable. The polystyrene and steel construction makes the trap resistant to odors and stains that are commonly found with wood traps.

When properly cleaned, these traps can be reused for many years.

The pre-formed bait cup makes it easy to bait this trap. The vertical strike bar only travels half the distance of a conventional snap trap. The trip paddle and strike bar are extra-large to catch rodents from all sides.

When used properly, your hands will never have to touch the mouse.

Conclusion

To keep mice out of your basement, you’ll need to take a two-prong approach:

  1. Sealing and insulating holes to keep new mice from getting inside.
  2. Trapping the mice that are already in the basement.

If you’re concerned about trapping your own mice or have a major infestation, call a pest control expert or exterminator to get the job done.

Call a Local Exterminator

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