November Pest Activity: Why Pests Move Indoors and How to Prepare

As temperatures drop in November, many homeowners start noticing more activity from pests like mice, spiders, boxelder bugs, flies, and other insects. This sudden increase isn’t random — pests are simply looking for warmth, moisture, and shelter. Homes, garages, barns, and businesses offer exactly what they need to get through the colder months.

Common Pests Seen in November

Mice & Rodents: They enter through gaps the width of a pencil. Once inside, they look for insulation, storage boxes, and kitchen areas.
Spiders: Often follow other insects indoors.
Flies & Cluster Flies: Overwinter in attics and spaces near windows.
Asian Lady Beetles & Boxelder Bugs: Gather on siding during warm afternoons and slip inside through cracks.

Why This Happens

As soon as daytime temperatures consistently drop below 50°F, pests shift from outdoor food sources to interior spaces. Walls, basements, attics, and crawl spaces maintain heat longer than outdoor environments, making them ideal overwintering spots.

What You Can Do

• Seal cracks around windows, doors, and utility entry points
• Store food in sealed containers
• Reduce clutter in storage areas to eliminate nesting spots
• Keep exterior vegetation trimmed away from siding
• Address moisture issues like dripping spigots or damp basements

When to Consider Professional Help

If you’re hearing scratching in walls, seeing droppings, or noticing insects gathering in larger numbers, a professional inspection can help determine where the pests are entering and what’s attracting them. At Evicted Pest Control, we tailor our approach to each property, based on the structure, environment, and activity.

Need Help Managing Fall and Winter Pests?

We offer service plans and one-time treatments designed around your situation. Whether it’s wildlife, mice, or seasonal pest invaders, we’ll walk the property, discuss options, and build a plan that works for you.

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