Cathlamet, Washington · Served from our Kelso office
Cathlamet Pest Control & Exterminator Services
Webs across every window by August, big spiders in the bathtub in September, a mouse in the shed once the rain sets in. You want a river view without the webs in front of it. Our Kelso office serves Cathlamet and Puget Island year-round and comes back as part of your plan if pests return between visits.
- Plans from $39/mo plus a one-time setup fee
- Cathlamet visits from our Kelso office
- Re-services included as needed between scheduled visits
Request a Free Quote
You can also call us at 360-515-3882 or Book Instantly Here
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Same-day callback Monday to Friday for requests sent before 4pm.
What Cathlamet homeowners call us about
Pick the pest to see what it looks like and how our Kelso team handles it.
Rats & mice
Mice and rats look for dry sheds, garages and crawl spaces when the fall rain starts.
Rats and mice guide →Ants
Ants come in for food in spring and summer, and moisture ants follow damp wood.
Ants guide →Spiders
Webs fill eaves and windows in late summer, and house spiders wander indoors.
Spiders guide →Wasps & yellow jackets
Yellow jackets nest in lawns and wood piles through the dry months.
Wasps and yellow jackets guide →Local Context: Cathlamet, Washington
Old houses and a lot of rain
The U.S. Census Bureau’s American Community Survey puts the median year built for Cathlamet homes at 1969, and 55% were built before 1980, compared with 44% across Washington. In older houses the gaps are already there: settled sills, loose vent screens and siding that has pulled away at the corners. Rodents and overwintering insects like boxelder bugs use exactly those openings. NOAA’s climate normals for the Cathlamet 3NE station put rain at 79.77 inches a year, the wettest of the NOAA stations in our Kelso service area. That much rain keeps crawl spaces and wood damp, which is what rodents, moisture ants and dampwood termites look for.
Spiders are the standout here. In Interstate Pest Management records for new customers with Cathlamet billing addresses over the last five years, spiders were on 41% of first visits, more than twice the Longview share. WSU says giant house spiders are seen most from mid-summer to early fall, when males wander, and that their bite is not known to threaten people.
When to expect it
Spider calls bunch up at the end of summer. In Interstate Pest Management records for new Cathlamet customers over the last five years, August and September brought 51% of the year’s new spider calls.
Share of new first-time calls by month. Source: Interstate Pest Management service records, first appointments of new customers with Cathlamet billing addresses over the last five years. Each row sums to about 100%.
For a plant or insect question, the WSU Wahkiakum County Master Gardeners answer questions by phone at (360) 795-3278. For anything in or on the house, send us a photo and we’ll tell you what it is.
How service works in Cathlamet
- 1
Tell us what you see
Book online or call 360-515-3882. Let us know if you’re on Puget Island or up one of the valley roads so we can plan the route.
- 2
Inspect and treat
Your technician walks the house, the crawl space and any outbuildings, finds where pests get in and what draws them, treats them and shows you what was done.
- 3
Stay ahead of each season
Visits are timed ahead of each pest’s busy months. If something gets through between visits, one call brings us back, included in your plan.
Pest control pricing for Cathlamet homes
Cathlamet pays the same as everywhere our Kelso office serves: one monthly rate, plus a one-time setup fee that covers the first treatment.
All Seasons Pest Service
$39/mo
$260 one-time setup fee
Year-round coverage for the insects lower Columbia homes see most, including ants, spiders, wasps and boxelder bugs.
See the Pest planAll Seasons Pest & Rodent Service
$47/mo
$280 one-time setup fee
Everything in the Pest plan plus rats and mice, on one bill.
See the Pest & Rodent planAll Seasons Rodent Service
$39/mo
$280 one-time setup fee
Ongoing rat and mouse control for homes that need rodent coverage only.
See the Rodent planOne-time Rodent Service: no plan, $350 for the first visit, then $60 per follow-up.
Exclusion work is quoted separately and carries a 1-year warranty on materials.
What our customers say
4.96 average from 8,394 Google reviews
“Josh is reliable and knowledgeable. He asks what the activity has been and then treats accordingly. My home pest control is so much better since he started coming. Thank you for all your help getting rid of the insects and spiders!!”
“Interstate h As been reliable. Today’s visit by Ahmad was on-time. He was very polite and answered questions of safety and kinds of spiders. We appreciate his patience with us and we took his recommendations.”
“Brian Russel came to help with our ant and spider problem and he may have been our best technician yet. Super thorough and explained everything so well.”
Cathlamet pest control questions
Still have a question about your Cathlamet home? Call our Kelso office, Monday to Friday from 8am to 5pm.
Do you serve Puget Island?
Yes. Our Kelso office serves Cathlamet, Puget Island and the roads along the river in Wahkiakum County. Call 360-515-3882 and we will confirm your address.
When are spiders worst in Cathlamet?
Late summer. In Interstate Pest Management records for new Cathlamet customers over the last five years, 51% of new spider calls came in August and September.
Are the big brown spiders dangerous?
Most are giant house spiders. WSU says their bite is not known to pose any threat to people. They show up on floors and in tubs from mid-summer to early fall.
How much is pest control in Cathlamet?
The All Seasons Pest Service is $39/mo with a $260 one-time setup fee. Rodent coverage is $39/mo with a $280 setup fee, and the All Seasons Pest & Rodent Service is $47/mo with a $280 setup fee. Exclusion work is quoted separately after the inspection.
What if pests come back between visits?
Call us. Re-service between scheduled visits is included on every All Seasons plan.
Call our Kelso office
Interstate Pest Management
1301 Elm Pl
Kelso, WA 98626
Monday to Friday, 8am to 5pm
Washington State Department of Agriculture License #229
Take the fast lane to a pest-free home.
Cathlamet and Puget Island homes are covered from our Kelso office. Plans start at $39/mo plus a one-time setup fee.