Preventing Mouse Invasions in the Winter: Your Home’s Defense Guide


The beginning of winter brings festivity, family gatherings, and warmth around the fire. However, winter brings biting and even deadly temperatures for many little critters. This means that you and many other homeowners will see the return of unwanted pests in your homes. As the weather turns chilly, these tiny pests, such as mice, seek warmth and shelter in our cozy abodes. If you’re asking yourself, how do you keep mice out of your house during winter, and why do they come inside your home? This guide can help provide you with answers and practical solutions.

Mice: How Tough Are They?

The winter months can be especially bitter and cold, even for us, and you may be asking yourself, “Can mice survive the cold?” Mice are not particularly fond of the cold. These tiny rodents are naturally adapted to outdoor environments, but extreme cold can be deadly. Their fur provides some insulation but is not enough to keep them warm during harsh winter conditions. So, why do mice enter the house in the winter when the temperatures drop? Most importantly, how do you keep mice out of your house during the winter? Please continue reading to learn how mice think and act and how to prevent them from invading your home during the colder months.

Why Do Mice Come in the House in the Winter?

Warmth, Comfort, and Safety: 

Mice prefer a warm and cozy environment when temperatures drop outside. However, mice infestations do not question whether mice can survive the cold but how they survive the cold. Several factors contribute to why mice enter our homes and how our homes help them survive the cold. 

Our homes offer a perfect haven from the cold, with heating systems that provide an appealing escape for these creatures, food in hidden places, and overall protection from the elements. 

Food Sources: 

Mice are very resourceful creatures. They come inside seeking food, especially when their natural food sources become scarce during the winter. Mice can survive on various items, including grains, seeds, and crumbs left behind. Knowing a mouse’s diet can help you diminish the use of these foods in your home or ensure it is well maintained. Keep a clean environment and avoid leaving out food or leftovers, as the crumbs attract mice. 

Protection from Predators: 

The dropping temperatures and possibility of snow aren’t the only dangers mice face by staying outdoors. Predators of mice, also looking for food and warmth during these winter months, are constantly on the prowl. Houses protect mice from natural predators like owls, snakes, and larger mammals. This safety factor further encourages them to seek refuge indoors. Knowing why mice are attracted to our homes during the winter helps us devise effective strategies to keep them out.

Mouse trap Risk Mouse Humor Danger Animal Intelligence

How to Keep Mice Out of Your House During the Winter

Now that we have answered the question, “Why do mice come in the house in the winter,” we can move on to answering the question of how to keep mice out of the house in winter. Below, we have listed several methods of prevention to help keep mice out of your home during the cold winter season. 

Seal Entry Points

Mice can slip through surprisingly small openings. Mice do not have clavicles (collar bones) like humans do. This means they can fit into any hole they can fit their head through. If you can poke your finger through a hole that leads from the outside of your home to your inner wall void, then a mouse can get in through that access. Carefully inspect your home for gaps or cracks; seal them with caulk, weatherstripping, or steel wool. Pay special attention to areas around windows, doors, vents, and pipes penetrating the exterior wall. Oversized weep holes in bricks can be filled with a wire mesh. It is important that you use a wire mesh that allows airflow from the inner wall to the exterior wall. So, don’t just stuff them full. That airflow allows moisture to leave your wall in the form of humidity, a function without which may lead to conditions that are conducive to fungus, mold, termites, and other pests. 

Keep a Tidy Home

During winter, you’ll have extra cushions, blankets, and other cozy items out on couches and beds. Snuggling in on the couch with a fuzzy blanket is a wintertime staple. However, not only do you enjoy it, but so do mice! Make sure to pick up any blankets, clothes, or other objects mice might hide in and keep them on elevated surfaces, away from the ground. Clutter provides many places for mice to hide and feel safe; so, reducing clutter in your home is important.

As mentioned, mice are also attracted to food, so maintaining a clean and crumb-free home is crucial. Store food in airtight containers, promptly clean up crumbs and spills, and ensure your garbage cans have secure lids. Remember to clean pet food dishes after use as well. Keep bags of pet food stored in a container with a lid.

Set Traps

Mousetraps are an effective way to catch mice that have already entered your home. Please place them in areas where you’ve seen mouse activity or near any potential entry points. Bait the traps with either professional lures such as Provoke by Bell Labs or with foods that mimic rodents’ natural diet such as oats mixed with peanut butter. Though popular culture would have you believe that mice like cheese, this is not the best bait as it is not part of their natural diet. While they will eat cheese, they will have a preference for nuts and grains. 

Consider Ultrasonic Repellents

What are ultrasonic-repellent devices, and are they effective? Ultrasonic-repellent devices emit high-frequency sound waves that are unpleasant for mice while inaudible to humans, but rodents will put up with a significant amount of unpleasantness to survive. This annoyance will not stop rodents from seeking out food, water, and shelter. After consulting dozens of pest control companies on the use of these devices, not a single one used these devices as part of their Integrated Pest Management strategy. 

Keep Up With Outdoor Maintenance

Keeping the outdoor areas around your home tidy can help prevent mice from nesting outside. Large amounts of vegetation, open trash, and scattered garden tools can attract mice to your yard, eventually tempting them into your home. Here is a list of potential and unsuspicious items in your yard that may attract mice to your home. 

In the meantime, trim overgrown vegetation and store firewood, trash, and debris away from your house. These steps make your property less appealing to mice, reducing the likelihood of them entering in the first place.

Hire Professional Help

For severe mouse infestations, consider professional pest control services like Bug Bros. While DIY methods offer temporary relief, experts ensure long-term solutions. Early action is vital to prevent winter mouse invasions. You can maintain a rodent-free home during chilly months by understanding why mice seek indoor warmth and using effective prevention.
Remember, mice aren’t the only winter pests. Are you experiencing other infestations? Check this article on eliminating overwintering pests. For comprehensive winter pest control, Bug Bros has got you covered! Ask for a quote now!

About the Author

Based on 1405 reviews
powered by Google
1,000+ reviews

Our Crazy Happy Customers

We're the highest-rated around because we're incredibly passionate about our craft. As a matter of fact, our Crazy Happy Customers have given us a perfect 5.0 rating on 1,500+ reviews. That's unheard of! See for yourself why our raving fans have placed us head & shoulders above the competition.

Based on 1405 reviews
powered by Google
Will FrisbieWill Frisbie
16:41 25 May 24
Justin at bug bros was awesome! Took time to address all my concerns and treated everything on the property. Very pleased!
Brandon Van DamBrandon Van Dam
19:53 24 May 24
Justin has an awesome personality, and I think my dog loves him more than me. He has done wonders for my home!
J MayJ May
16:13 24 May 24
Mz.D GMz.D G
17:10 23 May 24
I have a subscription with Bug Bros and am always pleased with the technicians and the customer service. I detest insects so they're always willing to schedule a service when I call freaking out about what new horror (most recently, wild spiders) I've seen in my house. Lol Thank you for being so... thorough, Eric and Friends!read more
Emily ReederEmily Reeder
14:42 23 May 24
Justin was great he listened very well to our issues and explained everything he was doing to combat the problems. Booking with big bros was a very easy and quick experience too! They really take the time to explain everything to you, which I appreciate! Justin was great with our animals and got... the job done quickly! I would recommend using bug brosread more
Dalton HigniteDalton Hignite
14:12 23 May 24
Kristin ColeKristin Cole
18:56 22 May 24
Chris WillinghamChris Willingham
22:11 21 May 24
Excellent service!
Joe CusickJoe Cusick
16:57 20 May 24
The BugBros team is always super friendly and considerate. The constant communication prior to, during and after the appointment is extremely helpful!
Kyle WagnerKyle Wagner
23:06 17 May 24
1st off, this month has been very stressful with losing a family member and the last thing I and my family needs is to worry about pests. Justin was phenomenal from start to finish and thorough! He took care of the bugs so we will have one less thing to worry about. In short, I can see why this... company is the best. If you need pest control call the BugBros they really treat you like they would a family member! He even took care of the pesky wasp nests and ants and checked for the dreaded termite (and blessed we dont have those). In short, thank you x a million!read more
Susie QSusie Q
19:41 17 May 24
Bug Pros is the BOMB! BEST bug guys around! They keep those bugs away from your house!!!!
Shanna PerrineShanna Perrine
19:05 17 May 24
Great experience!
Mike's WorldMike's World
23:22 16 May 24
Kelley RashKelley Rash
21:04 16 May 24
Always professional, good at explaining the products used, and come within their window of time giving notice before their arrival.
Darlene DaughrityDarlene Daughrity
16:34 15 May 24
I don’t have bug or pest problems thanks to you guys
BugBros Pest Control: Get a FREE Quote Today

Get A FREE Quote Today!

Complete the form below or Call (855) 593-5455 for your no-obligation pest control quote.

What service(s) do you need?(Required)
This field is for validation purposes and should be left unchanged.