If you’re noticing more pests in your house during winter, you’re not alone. In Idaho Falls, Idaho, cold temperatures don’t eliminate pests—they drive them indoors. Winter pest infestations are extremely common as insects and rodents search for warmth, food, and shelter when outdoor conditions become harsh.
Understanding why this happens and how to stop it can help protect your home from long-term pest problems.
Why Winter Brings More Pests Indoors
As temperatures drop, pests that normally live outdoors struggle to survive. Snow cover, frozen ground, and limited food sources force them to seek protected environments. Homes offer everything pests need to survive winter: consistent warmth, access to food, and hidden nesting areas.
Small gaps around doors, windows, foundations, vents, and utility lines become entry points. Once inside, pests can remain active all winter, often going unnoticed until the infestation grows. This is why searches for pests in house winter spike every year.
Common Winter Pest Infestations in Idaho Falls
Rodents (Mice and Rats)
Rodents are the most common cause of winter pest infestations. They squeeze through tiny openings and nest inside walls, attics, and basements. Rodents can damage insulation, chew electrical wiring, contaminate food, and spread disease.
Spiders
While spiders are less active outdoors in winter, many move indoors for shelter. Basements, crawl spaces, garages, and storage areas are common hiding spots. Seeing spiders may also indicate other insects are present as a food source.
Cockroaches
Cockroaches thrive in warm, indoor environments. During winter, they gravitate toward kitchens, bathrooms, and utility rooms. A winter pest infestation involving cockroaches can spread quickly if not addressed professionally.
Ants
Certain ant species remain active indoors year-round. During winter, they nest inside walls and near moisture sources, emerging in search of food and surprising homeowners who thought ant season was over.
How to Stop Winter Pests in Your Home
Preventing a winter pest infestation requires more than DIY sprays. Effective steps include:
- Sealing cracks, gaps, and openings around your home
- Storing food properly and reducing moisture sources
- Keeping basements, garages, and storage areas clutter-free
- Scheduling professional pest control services for inspection and prevention
Professional pest control targets both active pests and the conditions attracting them.
Professional Winter Pest Control in Idaho Falls, Idaho
Effective pest control in Idaho Falls focuses on prevention and long-term protection. Winter treatments identify entry points, eliminate existing pests, and create barriers to stop future infestations as temperatures fluctuate.
Addressing pest issues in winter helps prevent larger infestations in spring, saving time, stress, and repair costs.
Don’t Ignore Winter Pest Activity
If you’re seeing increased pest activity this winter, it’s a sign your home needs attention. Professional pest control can stop winter pest infestations and protect your home throughout the year. Contact your trusted Idaho Falls pest control provider today to keep pests out—no matter the season.

