Ant Extermination & ant Control Services in King County & Seattle, WA


Carpenter ants WDO (wood destroying organism)

Moisture ants WDO (wood destroying organism)


Ant infestations are one of the most common pest problems in the Seattle and King County region. While some ants seem harmless, others can cause serious damage to homes, contaminate food, and even compromise structural integrity. That’s why Plateau Pest provides expert ant extermination and prevention services—helping homeowners and businesses remove infestations and keep them from coming back.


Common Ant Species in the Seattle Area


Carpenter Ants

Tunnel into wood and weaken structures.

Argentine Ants

Spread fast and invade in large numbers.

Pharaoh Ants

Tiny ants that contaminate food and surfaces.

Moisture Ants

Live in damp spots like basements and baths.

Odorous House Ants

“Sugar ants” that form many nests when disturbed.

Pavement Ants

Nest near sidewalks, driveways, and basements.

Thatching Ants

Build large outdoor mounds near homes.

European Fire Ants

Aggressive and known for painful stings.


Structural Damage Caused by Ants

Some ants, like carpenter ants, don’t just invade your pantry—they damage the structure of your home. By tunneling through wood, they create hidden networks that can weaken walls, flooring, and support beams. If left untreated, this can lead to costly repairs. Our experts are trained to spot signs of hidden damage and take action before the problem grows worse.

Inside vs. Outside Ant Problems

Ant problems don’t always start indoors. In fact, many infestations begin outside and spread into the home.

  • Outside nests – Carpenter ants often nest in stumps, logs, or trees, then expand into nearby structures.
  • Inside infestations – Ants that make their way indoors contaminate food, crawl over counters, and can be very difficult to remove without professional treatment.

At Plateau Pest, we address both interior and exterior infestations, ensuring your entire property is protected.

Why Professional Ant Extermination is Necessary

DIY sprays and store-bought solutions often make ant problems worse. For example, odorous house ants will split their colony into multiple nests if treated incorrectly, multiplying the problem instead of solving it.

Our professional exterminators:

  • Identify the exact ant species
  • Locate nests and satellite colonies
  • Use targeted treatments that work for your situation
  • Ensure safe methods that protect your family, pets, and property

This approach ensures the ants are eliminated—not just scattered.

Plateau Pest Control’s Ant Removal Process

Our step-by-step ant control process includes:

  • Inspection – We carefully examine your home or business to find signs of ants and determine the extent of the problem.
  • Identification – Knowing the exact species allows us to choose the right treatment method.
  • Treatment – We use proven, safe, and effective extermination techniques to eliminate ants inside and outside your property.
  • Prevention & Maintenance – Ongoing monitoring and follow-up services ensure that ants don’t return.

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Protect Your Home or Business from Ants

Ant infestations in the Seattle area are more than just an annoyance—they can damage structures, contaminate food, and put your health at risk. Plateau Pest Control provides trusted ant extermination services throughout King County, including Seattle, Bellevue, Renton, Kent, Maple Way, Auburn, and surrounding communities.

To get started, call 425-246-9102  or request a quote below!