Winter Pests in Washington: What’s Hiding Indoors

When winter arrives in Washington, pests don’t disappear — they move in. As temperatures drop, many insects and rodents seek warmth, food, and shelter inside homes and businesses. While you’re cozying up indoors, unwanted guests like mice, spiders, and ants might already be doing the same.

Here’s a look at the most common winter pests in Washington and how to stop them before they make themselves at home.

1. Rodents (Mice & Rats)

Cold weather drives rodents indoors, where they chew through insulation, wires, and food packaging. Their droppings and nesting habits can spread disease and cause property damage. Seal entry points, especially around vents, pipes, and foundation cracks.

2. Spiders

Though most spiders prefer dark corners and basements year-round, winter often pushes them into bedrooms, bathrooms, and living areas. Vacuum regularly and eliminate clutter where spiders can hide.

3. Ants

Even in winter, ants can appear in kitchens and pantries seeking moisture or crumbs. Carpenter ants, in particular, tunnel into wood, causing structural issues over time. Keep food sealed and check for damp wood near windows or basements.

4. Cockroaches

These resilient pests thrive in warm, humid areas like kitchens, bathrooms, and laundry rooms. Once they’re in, they multiply quickly. Fix leaks, keep surfaces clean, and don’t leave standing water overnight.

5. Silverfish & Earwigs

These moisture-loving insects often show up in basements, bathrooms, and attics. While harmless, they can damage paper, fabrics, and stored belongings. Use dehumidifiers and store items in sealed containers.

Stay Protected This Winter

Preventing pests during the colder months starts with proactive care. Regular inspections, sealing entry points, and maintaining cleanliness go a long way — but when pests get in, professional help makes all the difference.

At Washington Pest Services, we offer seasonal pest protection plans that keep your home safe year-round using safe, eco-friendly methods that deliver long-term results.

📞 Call us today for a free winter pest inspection and reclaim your comfort this season!