Seattle’s Most Common Pest Problems
Rodents - Rats and Mice
Rats are Seattle’s most significant pest issue. Norway rats tunnel near foundations. Roof rats enter homes through gaps at rooflines, utility penetrations, and overhanging tree branches. Seattle’s older housing stock - much of it from the early to mid 20th century - has accumulated gaps over decades that rodents exploit. Trapping removes individual animals. Exclusion stops the problem at its source. Guardian’s rodent exclusion service seals every identified entry point with rodent-proof materials and backs the work with a lifetime warranty. The EPA’s rodent control guidance specifically recommends exclusion as the most effective long-term strategy - rat poison alone will not stop new rodents from entering through unpatched gaps.
Pavement Ants and Odorous House Ants
Ant trails along Seattle kitchen counters and bathrooms are a classic urban pest complaint. Pavement ants nest under concrete slabs and sidewalks - common in Seattle’s older neighborhoods. Odorous house ants nest in wall voids and soil along foundations. Species identification changes the treatment approach. Guardian inspects before treating and uses bait formulations that reach the queen rather than just the workers you can see.
Wasps and Hornets
Yellow jackets nest in Seattle yards, wall voids, and eaves throughout summer. Bald-faced hornets build large aerial nests in trees and under overhangs. Guardian removes active nests and treats the nest cavity - particularly important for wall void nests where a sealed colony can create secondary problems. See WSU Extension’s guide to yellowjackets for identification and seasonal behavior in the Puget Sound region.
Bed Bugs
Bed bugs are widespread in Seattle’s urban housing. They spread via travel, secondhand furniture, and shared laundry facilities. Urban density means an infestation in one apartment unit quickly spreads to adjacent units. Guardian’s bed bug treatment addresses active infestations in single units and coordinates multi-unit treatment plans with property managers. A free re-service guarantee applies if signs of activity return after treatment.
Spiders
Spider activity in Seattle homes peaks in late summer and fall. Giant house spiders are harmless but alarming. High spider populations signal an abundant prey insect base. Guardian addresses both - insect treatment reduces the food supply that sustains spider populations indoors.
Services Available in Seattle
- Residential pest control - quarterly plans for single-family homes and condos
- Rodent exclusion - lifetime warranty on all exclusion work
- Insect control - ants, wasps, spiders, cockroaches, bed bugs
- Commercial pest management - written logs for health department and landlord compliance
- Emergency pest control - same-day response
Why Seattle Residents Choose Guardian
Seattle residents value transparency and accountability. Guardian provides both. Every service visit is documented with a written report - what was found, what was applied, and what follow-up is needed. Our free re-service guarantee means we stand behind the work between visits. For background on pest management best practices, see King County Public Health’s pest and rodent resources and the National Pest Management Association pest guide.
Frequently Asked Questions
Do you service apartments and multi-unit buildings in Seattle?
Yes. Guardian works with individual tenants and property managers. For multi-unit buildings, we recommend coordinated treatment across adjacent units for bed bugs and rodents. We provide separate written reports for each unit and coordinate scheduling with building management.
Can you help before a home inspection?
Yes. Pre-sale pest inspections and treatment are available. Guardian provides a written inspection report you can include with real estate disclosures.
What Our Customers Say
★★★★★
“Guardian extended service to our Seattle property and maintained the same quality. Rodent exclusion along the roofline - they found two entry points, sealed them properly, and cleared the interior. No recurrence in four months.”
★★★★★
“Bed bug treatment for a Seattle rental unit. Guardian treated efficiently, provided full documentation for the tenant file, and confirmed clearance on the follow-up visit. Professional handling of a difficult situation.”
★★★★★
“German cockroaches in a Seattle restaurant kitchen. Guardian’s gel bait programme eliminated the infestation without any kitchen downtime. Written health department documentation provided after every visit. Finally a provider that understands food service compliance.”