Late Summer Is When Rodents Start Moving In

Short answer: Rodents do not wait for the first cold snap. In late summer and early fall they start scouting for a warm, dry place to spend the winter, and your house is high on the list. Sealing up and setting a plan now, before they settle in, is far easier than evicting them once they are established inside.

People tend to think of mice and rats as a winter problem, and by the time they are hearing scratching in the attic in December, it feels sudden. It is not. The move indoors starts now, in the last stretch of summer, while it is still warm out. Getting ahead of that timing is the whole game.

Why they start now

As the days shorten and nights start to cool, rodents begin looking for winter shelter and a reliable food source. They are not fleeing the cold yet, they are planning for it. A house offers warmth, dry nesting spots, and a kitchen full of food. Scout a small gap in August, move the family in by October, and you have a full-blown problem before you ever felt cold weather.

What they are looking for

• Small gaps and cracks around the foundation, utility lines, and vents
• Gaps under garage and crawlspace doors
• Overhanging tree limbs and shrubs that give them a path to the roof
• Easy food, like pet food, birdseed, garbage, and pantry items

A mouse can slip through a gap about the size of a dime, so the openings that matter are smaller than most people expect.

Seal it before they settle in

• Walk the exterior and seal gaps with materials rodents cannot chew through easily
• Add or fix door sweeps on the garage and exterior doors
• Trim tree limbs back off the roofline
• Store pet food and birdseed in sealed containers and clean up spills
• Keep firewood and clutter away from the walls

"Since we made the switch to Sipsey Pest Solutions our services at home have been top notch and no issues." Trey G. ★★★★★

The Alabama angle

Our mild fall stretches the moving-in window longer than it lasts up north, so rodents have plenty of time to find their way in before winter. That is exactly why sealing in late summer beats scrambling once you hear them. For the specifics on how they get in, read how mice get into your house in the fall, and for the early warning signs, see the signs of a rodent problem.

Want to keep rodents out before they move in?

Our rodent control seals the entry points and sets up protection ahead of the season. Call or text (205) 855-7975.

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When do rodents start coming indoors in Alabama?

Late summer and early fall. As nights begin to cool and days shorten, they start scouting for winter shelter, well before the first real cold.

How small a gap can a mouse get through?

About the size of a dime. Rodents can also squeeze through gaps around pipes and under doors, so the openings to seal are smaller than most people expect.

Is it better to seal now or wait until I see one?

Seal now. Keeping them out before they settle in is far easier than removing an established population once they are nesting inside.