Living in Tacoma means dealing with a predictable cast of pests, and a lot of that comes down to our climate. The Pacific Northwest's wet, mild weather is great for hiking and gardens — but it's also ideal for ants, rodents, spiders, wasps, and a range of insects that thrive in damp conditions.
This guide covers the most common pests found in Tacoma and the greaterPierce County area, what to watch for season by season, and simple prevention tips you can use right now. And when things get out of hand — we're just a phone call away at (253) 525-1334.
Odorous house ants and carpenter ants are common in Tacoma. They trail indoors seeking food and moisture, especially after rain. Carpenter ants can damage wood structures if left unchecked.
Rats and mice move indoors as temperatures drop, seeking warmth and food. Tacoma's older homes offer plenty of entry points. Rodents chew wires, contaminate food, and reproduce quickly.
Most Tacoma spiders are harmless, but their webs are a nuisance. Venomous species like the hobo spider do appear locally. Spiders follow other insects indoors, so controlling their food source helps.
Wasp nests build up through summer and become aggressive by early fall. Yellow jackets often nest in wall voids or underground. Nests near entryways pose a real stinging risk to families and pets.
Bed bugs hitchhike on luggage, furniture, and clothing. They hide in mattress seams and bed frames and feed at night. Infestations spread quickly and are difficult to eliminate without professional treatment.
Pest activity in Tacoma follows the seasons. Knowing what's active when helps you stay ahead of problems before they start.
| Season | Pest Activity | Prevention Steps |
|---|---|---|
| Spring (Mar-May) | Ants emerge, spiders become active, moisture insects appear | Seal cracks around windows and doors. Clear yard debris. Fix leaky outdoor faucets that attract moisture pests. |
| Summer (Jun-Aug) | Wasps peak, yellow jackets aggressive, ants foraging indoors | Keep food sealed and trash covered. Check eaves for wasp nests early. Trim vegetation away from the house exterior. |
| Fall (Sep-Nov) | Rodents move indoors, spiders peak, stinging insects most aggressive | Inspect for entry points and seal gaps. Store firewood away from the house. Schedule a fall perimeter treatment. |
| Winter (Dec-Feb) | Rodents active indoors, overwintering insects in wall voids | Check attic and crawl space for rodent signs. Keep food stored in sealed containers. Maintain prevention plan coverage. |
A lot of pest problems can be prevented or minimized with some simple maintenance around your home. Here are practical steps Tacoma homeowners can take right now:
Prevention goes a long way, but some infestations — especially rodents, bed bugs, and large wasp nests — need professional treatment to resolve safely and permanently. If you're seeing repeated activity, signs of nesting, or pests in multiple rooms, it's time to call in a local pest control expert.
At Custer Pest Control, we'll inspect your property, identify the source, and build a targeted plan that fits your situation. Explore our services »
