St. Helens, Oregon · Served from our Kelso office
St. Helens Pest Control & Exterminator Services
Boxelder bugs on the siding in March and again in October, ants in the kitchen in spring, mice in the garage by winter. You want the house to stay yours through every season. Our Kelso office serves St. Helens 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
- St. Helens 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 St. Helens homeowners call us about
Pick the pest to see what it looks like and how our Kelso team handles it.
Rats & mice
Rats and mice look for garages and crawl spaces near the water.
Rats and mice guide →Ants
Ants trail into kitchens in spring, and carpenter ants work into damp wood.
Ants guide →Spiders
Webs fill eaves in summer, and house spiders come in for the fall.
Spiders guide →Wasps & yellow jackets
Yellow jackets nest in lawns, wood piles and wall voids.
Wasps and yellow jackets guide →Local Context: St. Helens, Oregon
Homes past their first round of wear
The U.S. Census Bureau’s American Community Survey puts the median year built for St. Helens homes at 1986, and 43% were built before 1980, compared with 50% across Oregon. A home of that age is past its first round of wear. Torn vent screens, gaps under garage doors and siding that has shifted are the entry points we find most.
Boxelder bugs keep two seasons here. In Interstate Pest Management records for new customers with Columbia County, Oregon billing addresses over the last five years, boxelder bugs were on 11% of first visits, and March and October together brought 52% of the year’s new boxelder bug calls.
When to expect it
In Interstate Pest Management records for new Columbia County, Oregon customers over the last five years, March brought 30% of the year’s new boxelder bug calls and October brought 22%.
Share of new first-time calls by month. Source: Interstate Pest Management service records, first appointments of new customers with Columbia County, Oregon billing addresses over the last five years. Each row sums to about 100%.
For a plant or insect question, the OSU Extension Columbia County office at 505 North Columbia River Highway in St. Helens takes samples for its Master Gardener plant clinic and has a drop box by the front door. Mosquitoes along the river are handled by the Columbia Drainage Vector Control District at 503-397-2898.
How service works in St. Helens
- 1
Tell us what you see
Book online or call 360-515-3882. A photo of the bug or the trail helps us send the right technician to your St. Helens address.
- 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 St. Helens homes
St. Helens 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
“Cameron has been an absolute pleasure. I was mind blown by the fact that during our first routine service I did not once have to call to have someone come back out for any re-treatment of our home or outdoor area. With the last “local” company we had to have services every 3 to 4 weeks, not anymore! No ants, spiders, or creepy crawlers!”
“Yaro was very productive, kind and informative. He took the time to educate me on what services were applicable to our needs without over explanation. Yaro greeted my dogs warmly and made sure I felt great about the services we pay for. 100% recommend the Interstate PM team.”
“Jarrod arrived and asked about what issues I had, he explained what he would be doing and went to work. He did a very good job.”
St. Helens pest control questions
Still have a question about your St. Helens home? Call our Kelso office, Monday to Friday from 8am to 5pm.
Do you serve all of St. Helens?
Yes. Our Kelso office serves St. Helens, Columbia City, Deer Island and the roads around them. Call 360-515-3882 and we will confirm your address.
Why do boxelder bugs show up twice a year?
They look for a dry place to spend the winter in fall, often inside walls and attics on the sunny side of the house, and come back out in March. They don’t breed indoors. Sealing gaps before October keeps most of them out.
Who handles mosquitoes in St. Helens?
The Columbia Drainage Vector Control District covers about 350 square miles along the Columbia in Columbia County and takes calls at 503-397-2898. Mosquitoes are a rare request for us.
How much is pest control in St. Helens?
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
Oregon Department of Agriculture License #AG-L0000148CPO
Take the fast lane to a pest-free home.
St. Helens homes are covered from our Kelso office. Plans start at $39/mo plus a one-time setup fee.