Wild mouse, in front of white background, studio shotTwas the night before….(insert any day here)..and all through the house, not a creature was stirring, not even a mouse. Ah yes, what a tranquil, glorious, peaceful thought of the serenity of a pest free home.

Until, to your shocking dismay, you find mouse droppings under your kitchen sink. At that moment in time you have a revelatory thought, an unnerving disturbing emotional musing…that…that…(cue scary music)…YOU ARE NOT ALONE!

So after you calm down and start to process this startling information you ask yourself, “How in the heck did a mouse get in here?” Fortunately, what is now a mystery to you is not a mystery to a trained pest control professional. And, since you asked the question let’s look at some possibilities.

How Mice Get Inside Your House

Mice are excellent climbers and can run up almost any roughened wall surface without it being a challenge. They can vertically jump 12 inches from a floor to an elevated surface. Mice an jump from a height of 8 feet to the ground or floor and not suffer an injury.

An adult mouse can fit through a hole the size of a dime, and baby mice can squeeze through a hole about the diameter of a pencil. Needless to say, mice are pretty incredible in their natural abilities, and so maybe the famous “Mighty Mouse” cartoon character was a way of paying homage to their skills in an exaggerated and playful way.

Mice are also curious in nature and love checking out anything new in their surroundings. The issue is, part of their surroundings is YOUR home. So, here are some common mouse entry points.

Common Places a Mouse Can Get Into Your House

garage door1)  Garage Door:  Having your garage door open on a consistent basis is like welcoming mice right into your home. Most garages are full of clutter, and are a very attractive place for a mouse to want to hang out. Even with the door shut, make sure the seal at the bottom of the door is not worn or leaving gaps, because mice will easily find this access inside.

2)  Entry Doors:  Check for worn out weather stripping, missing caulk, or cracks around frames. If you can see daylight from the inside around these areas, mice can probably get through.

3)  Windows:  Basement windows are especially conducive for mouse entry. Leaving windows open without screens or tears in screens provide easy access.

cracked brick wall4)  Cracks or holes in foundation wall:  This is especially an issue with stone foundations, but can happen with any wall that was constructed with gaps, unsealed masonry joints, or holes of any type. Cracks or other damage that occurs over time also provide an entryway for mice.

5)  Utility Lines:  Power lines, electrical conduit, and HVAC lines are all potential access points around your home. These holes can be stuffed with steel wool to block pest access.

6)  Vents:  Roof and dryer vents and weep vents between bricks are all potential points of entry. When possible, cover these vents with screens that will still allow air and moisture to flow properly but will prevent mice from entering.

chimney7)  Chimneys:  It may be a chimney for a fireplace that you do not even use any more but the mice do. The right size mesh of a screen will stop the mice from doing their own “Santa Claus” impersonation.

8)  Holes, gaps, or voids around the exterior construction of the attic:  Once again, screens, caulk, weather stripping and steel wool can work wonders in preventing access.

Mouse Control for Your Home

Even with a home where obvious potential entry points are sealed, mice can often still find a way in. That’s why it is important to have an experienced Pest Control Technician protect your home from rodent invasion. Your local Pest Management Professional can answer other questions about mouse control or other rodent issues you may have.

Barry Bradley -bio

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