Cascade Pest Control vs. Interstate Pest Management

Cascade Pest Control ranks #1 and Interstate Pest Management ranks #2 in our Pacific Northwest pest control rankings, with Handshake Scores of 9.6 and 9.5 out of 10. Both have locations on file in Washington. Cascade Pest Control also has locations in Idaho, and Interstate Pest Management in Oregon.
This comparison sets their verified records side by side: the five scored factors, review platforms, BBB, contract terms, licensing and legal record. It draws no conclusion beyond the scores. The small numbers link to each fact’s source, and each company’s full review has the rest.
At a glance
| Cascade Pest Control | Interstate Pest Management | |
|---|---|---|
| Rank | #1 in Pacific Northwest pest control | #2 in Pacific Northwest pest control |
| Confidence | Medium | High |
| Provisional score | No | No |
| Door-to-door sales | Not found7, 10 | Not found9, 10, 11, 6 |
| Ownership | Independent6, 7, 8 | Independent4, 6, 7, 8 |
| Headquarters | Snohomish, Washington2, 3, 4 | Kelso, Washington2, 3, 4, 5 |
| States on file | Washington and Idaho5 locations | Washington and Oregon5 locations |
| Record verified | October 13, 2026 | October 11, 2026 |
Our research
How they score
The Handshake Score is a weighted average of five factors, each scored from 0 to 10 from verified records. The percentage beside each factor is its weight. Each score links to the deductions behind it on the company’s review.
| Cascade Pest Control | Interstate Pest Management | |
|---|---|---|
| Customer satisfaction 30% | 9.3 | 9.7 |
| Interstate Pest Management scores higher on customer satisfaction (9.7 vs. 9.3). | ||
| Complaint record 20% | 10.0 | 10.0 |
| Tied on complaint record (10.0 each). | ||
| Sales and contract fairness 20% | 9.5 | 8.0 |
| Cascade Pest Control scores higher on sales and contract fairness (9.5 vs. 8.0). | ||
| Licensing and compliance 15% | 9.0 | 10.0 |
| Interstate Pest Management scores higher on licensing and compliance (10.0 vs. 9.0). | ||
| Legal and regulatory record 15% | 10.0 | 10.0 |
| Tied on legal and regulatory record (10.0 each). | ||
| Handshake Score | 9.6/10 | 9.5/10 |
| Cascade Pest Control has the higher Handshake Score (9.6 vs. 9.5). | ||
Workplace
We rate how companies treat employees separately, from employee-review sites, and keep it out of the Handshake Score. A workplace score is shown only when there are at least 20 employee reviews on file.
| Cascade Pest Control | Interstate Pest Management | |
|---|---|---|
| Workplace score | N/A | N/A |
| Neither company has a workplace score. | ||
Review platforms
Google figures cover each company’s Pacific Northwest listings; the average is weighted by each listing’s review count. Ratings and counts are as each site showed them on the date retrieved.
| Cascade Pest Control | Interstate Pest Management | |
|---|---|---|
| Google listings in the PNW | 10 | 5 |
| Google reviews | 3,280 | 8,078 |
| Google average | 4.9 | 5.0 |
Cascade Pest Control 15 review profiles
| Platform and scope | Rating | Reviews | Source |
|---|---|---|---|
| GoogleSnohomish, Washington | 4.9/5 | 1,107 | View |
| GoogleSeattle, Washington | 4.9/5 | 854 | View |
| GoogleWashington service-area listing | 4.8/5 | 587 | View |
| GoogleBellevue, Washington | 4.9/5 | 576 | View |
| GoogleBoise, Idaho | 5.0/5 | 63 | View |
| GoogleAnacortes, Washington | 5.0/5 | 45 | View |
| GoogleWashington service-area listing | 5.0/5 | 32 | View |
| GoogleWashington service-area listing | 5.0/5 | 8 | View |
| GoogleWashington service-area listing | 5.0/5 | 7 | View |
| GoogleWashington service-area listing | 5.0/5 | 1 | View |
| BBBSnohomish, Washington | — | 0 | View |
| Puget Sound Consumers' CheckbookBellevue, Washington73% gave a “superior” overall rating; Prices 123% higher than average | — | 185 | View |
| Facebookcompany page94% recommend (32 reviews) | — | 32 | View |
| Experience.comBothell, Washington | 4.5/5 | 2 | View |
| GuildQualityBoise, Idaho | — | 0 | View |
Interstate Pest Management 13 review profiles
| Platform and scope | Rating | Reviews | Source |
|---|---|---|---|
| GooglePortland, Oregon | 5.0/5 | 2,506 | View |
| GoogleKelso, Washington | 4.9/5 | 2,346 | View |
| GoogleVancouver, Washington | 5.0/5 | 1,751 | View |
| GoogleOlympia, Washington | 5.0/5 | 1,195 | View |
| GoogleSalem, Oregon | 5.0/5 | 280 | View |
| BBBHQ Kelso, Washington + corporate branches | 1.0/5 | 1 | View |
| AngiKelso, Washington | 4.9/5 | 7 | View |
| HomeAdvisorKelso, Washington | 5.0/5 | 5 | View |
| FacebookCompany page | 96% recommend | 103 | View |
| BirdeyeKelso, Washington | 4.9/5 | 2,662 | View |
| OtherBestProsInTown, Kelso, Washington | 4.9/5 | 280 | View |
| FacebookKelso, Washington page ‘Interstate Pest Management | — | 3 | View |
| OtherPortland, Oregon | — | 7 | View |
Better Business Bureau
Cascade Pest Control. Its BBB profile shows an A+ grade and 0 complaints in the last three years.
Interstate Pest Management. Its BBB profile shows an A+ grade and 1 complaint in the last three years.
| Cascade Pest Control | Interstate Pest Management | |
|---|---|---|
| BBB grade | A+6 | A+4, 31, 32 |
| Accredited | No | Yes, since 9/14/2016 |
| Complaints, last 3 years | 0 | 1 |
| BBB customer reviews | No reviews | 1.0/5 average from 1 review |
| Profile scope | Not recorded | Not recorded |
| Retrieved | October 11, 2026 | October 11, 2026 |
| Profiles |
Contract terms
Terms as recorded from the linked sources.
Cascade Pest Control 11 terms
Main plan ‘Cascade Complete Care’ is ongoing service at monthly, bi-monthly or quarterly visits; ‘Cascade Green Complete Care’ is a monthly organic service. Both include an initial treatment plus ongoing maintenance.11
Company guarantee (‘Complete Service Warranty’): re-service at no charge if targeted pests significantly breach defenses between scheduled services (company claim).11
Monthly service is required for rodent protection in post-and-pier homes, including mobile homes.11
Consumers’ Checkbook (Puget Sound) price comparison puts Cascade’s prices well above the area average.12
One Google reviewer mentions a 90-day warranty included in a one-time package (customer report, not published company terms). Separately, a 2-star Google reviewer on the Seattle listing said the company would not return for an ant problem without a monthly contract (see the Seattle review excerpts).9
Review by ‘Nicolas D.’ (Google, Snohomish listing per research-time capture). During verification Google Maps served a limited view that did not show this review, so the source is the Google-review widget on the company homepage, where the same review text appears.
Company’s published service-agreement Terms and Conditions (My Service page, ‘Last Updated 6/23/23’): recurring (maintenance) service continues until either party cancels with 30 days’ written notice by USPS or email; the client pays in full for any service not rescheduled with 24 hours’ notice. No minimum term and no early-cancellation fee appear in the published payment and cancellation terms.13
The terms sit in collapsed <details> panels; the cached copy was read with the panels opened. The page index still says ‘[Currently being updated May/June 2023]’. Signed customer agreements were not seen. The same section also says to ‘See specific Cascade agreement’s definitions and limitations of warranty’ and that service-specific terms (e.g. original pricing, target pests) are set per agreement. Verifier re-check October 13, 2026: all quoted terms confirmed verbatim in the raw HTML of a fresh capture.
Published terms: on rodent bait-station accounts, a $75 bait-station retrieval fee applies on cancellation unless the stations can be collected at the final service.13
Published terms: accounts unpaid after 30 days get a $30 late charge (plus a $30 NSF fee for returned checks and reasonable collection costs); a past-due account is put on hold, which also blocks warranty visits.13
Published re-treatment warranty conditions: service maintained without interruption over the previous 4 months, the company’s recommendations followed (e.g. exclusion work for rodent accounts), and the account current. Quarterly plans are ‘normally without warranty’; skipping a service suspends the warranty.13
The My Service page’s cancellation section tells customers to call the office to cancel and offers suspending service for up to 6 months instead. The formal terms on the same page require 30 days’ written notice (USPS or email), so the two instructions differ.13
Company blog post on Boise/Treasure Valley pest-control costs (pricing ‘as per September 2026’). The ranges are the company’s survey of local Boise-area companies, and the post says Cascade’s prices fall within them (company statement): initial setup for ants and spiders $150-$320; initial rodent setup $150-$425 for most homes; ongoing bi-monthly or quarterly service $120-$150 per visit (for a home up to 3,000 sq ft); one-time home pest service $150-$430.14
Interstate Pest Management 8 terms
All Seasons Pest plan from $39/month with a $260 one-time setup fee, billed quarterly, due at first visit; Pest & Rodent $47/month with $280 setup; All Seasons Rodent $39/month with $280 setup. ‘All prices are starting rates’.12
Plans include quarterly visits and free re-treatments between visits; free rodent call-backs may carry a charge if exclusion work was not done.12
A 12-month service agreement is required on the plans offered on the Salem promotion page (setup fee waived for new Salem customers through Sept 1, 2026).13
‘Switch & Save’ special advertises no setup fee and ‘NO Contract’ for new customers who present a competitor’s current contract (conflicts with the 12-month agreement stated elsewhere; terms not reconciled on the site).14
Company advertises a satisfaction guarantee / free re-service guarantee on quarterly plans.15
Customer reports (Google, Kelso listing, about 2 years before October 11, 2026): $260 setup fee plus $37/month for quarterly service; owner reply confirms ‘that is our standard pricing for our basic quarterly service’.16
Confirmed verbatim in the researcher’s Google Maps capture (October 12, 2026, 02:16 UTC); live re-sort was blocked by Google’s sign-in prompt during verification.
Customer report (Google, Kelso listing, about 8 years before October 11, 2026) says the plan could not be cancelled for a full year.16
Confirmed verbatim in the researcher’s Google Maps capture (October 12, 2026, 02:16 UTC); live re-sort was blocked by Google’s sign-in prompt during verification.
Customer report (Google review syndicated on HomeAdvisor, Sep 2025): $280 to set up and $45 per month.17
Licensing and registrations
Status and expiry dates are shown exactly as the issuing agency’s record showed them on the date retrieved.
Cascade Pest Control 9 records (Washington 5, Idaho 4)
| State | Authority and type | Number | Status | Expires | Source |
|---|---|---|---|---|---|
| Washington | Washington State Department of Agriculture (WSDA) - pesticide licensingCommercial Applicator company record - Treftz Corporation (DBA Cascade Pest Control); endorsements Insect and Disease Control, PCO Structural, PCO General, Vertebrate Pest | 8577 (designated Commercial Applicator: Kevin Robin Peterson) | Renewed | 12/31/2026 | 2 |
| Washington | WSDA - pesticide licensingIndividual license of Kurt B Treftz (the ‘Pest Control License #88604’ printed in the company website footer). Commercial Applicator: Invalid; Commercial Operator: Renewed | 88604 | Commercial Applicator Invalid; Commercial Operator Renewed | 12/31/2026 (Commercial Operator) | 29 |
| Washington | WSDA - pesticide licensingIndividual license of Kevin Robin Peterson (General Manager): Commercial Applicator designated for Treftz Corporation; Commercial Operator expired; Structural Pest Inspector expired | 8577 | Commercial Applicator Renewed; Commercial Operator Expired; Structural Pest Inspector Expired | 12/31/2026 (Commercial Applicator) | 30 |
| Washington | Washington Dept. of Labor & Industries (contractor registration, via data.wa.gov)Construction Contractor - specialty Structural Pest Control; Corporation; UBI 600390731 | CASCAPC952RL | ACTIVE | January 8, 2028 | 31 |
| Idaho | Idaho Secretary of State (business registry)Foreign Business Corporation - The Treftz Corporation (formed in Washington); registered agent Ashley Risting, 2911 N Grandee St, Boise | 6408636 | Active-Good Standing | AR due 08/31/2027 | 32 |
| Idaho | Idaho Secretary of State (business registry)Assumed Business Name - Cascade Pest Control (mailing address 2911 N Grandee St, Boise) | 6426755 | Active-Current | Not shown | 33 |
| Idaho | Idaho State Department of Agriculture (ISDA) - pesticide applicator licensingProfessional applicator - Sakhom Thien (Cascade field manager, Boise); categories CO IP OP | 99529 | Listed (ISDA lookup returns active licenses only; no explicit status field) | 12/31/2026 | 34 |
| Idaho | ISDA - pesticide applicator licensingProfessional applicator - Kevin Peterson (Snohomish, Washington; Cascade general manager); categories CO IP OP | 99530 | Listed (ISDA lookup returns active licenses only; no explicit status field) | 12/31/2026 | 35 |
| Washington | Washington Secretary of State corporate registry (read via the OpenCorporates mirror; CCFS itself is bot-blocked)Washington Profit Corporation - The Treftz Corporation; registered agent Kurt Treftz, 1430 Bickford Ave, Snohomish | 600390731 (UBI) | Active | annual reports listed 15 Jan 2023, 13 Jan 2024, 16 Dec 2024 and 1 Jan 2026 (latest) | 36 |
Interstate Pest Management 8 records (Washington 4, Oregon 4)
| State | Authority and type | Number | Status | Expires | Source |
|---|---|---|---|---|---|
| Washington | Washington State Dept. of Agriculture (WSDA) Pesticide LicensingCommercial Applicator (Bradley L Thorstenson for Interstate Pest Control Inc); endorsements: Insect and Disease Control, PCO Structural, PCO General, Vertebrate Pest, Weed Control | 229 | Renewed | 12/31/2026 | 33 |
| Washington | WSDA Structural Pest Inspector (SPI) programSPI company responsible party (Bradley Thorstenson); 6 company-employed SPIs | 229 | Renewed | 12/31/2026 | 33 |
| Oregon | Oregon Dept. of Agriculture (ODA) Pesticide LicensingCommercial Pesticide Operator; categories: IIHS General Pests, IIHS Structural Pests, Ornamental & Turf Insecticide & Fungicide, Right of Way | AG-L0000148CPO | Active | 12/31/2026 | 4, 34 |
| Washington | Washington Secretary of State (via OpenCorporates mirror)Washington Profit Corporation ‘INTERSTATE PEST CONTROL, INC.’ | 601415219 | Active | Not shown | 35 |
| Oregon | Oregon Secretary of State Corporation DivisionForeign Business Corporation (FBC), jurisdiction Washington, ‘INTERSTATE PEST CONTROL INC.’ | 605169-87 | ACT | Next renewal 11-20-2027 | 8 |
| Oregon | Oregon Secretary of State Corporation DivisionAssumed Business Name (ABN) ‘INTERSTATE PEST MANAGEMENT INC.’ (authorized representative: Interstate Pest Control Inc.) | 1240751-93 | INA (inactive) | Not shown | 36 |
| Washington | Washington Dept. of Labor & Industries (contractor registration, data.wa.gov)Construction Contractor, specialty ‘Structural Pest Control’ | INTERPC088QP | ACTIVE | July 18, 2028 | 37 |
| Oregon | Oregon Construction Contractors Board (CCB)Residential Specialty Contractor | 127319 | Active | 1/26/2028 | 38 |
Legal and regulatory record
Only resolved government actions count toward the legal and regulatory score. Pending lawsuits, allegations and private matters are listed but not scored. Summaries are our researchers’ wording of the source; allegations are allegations, not findings.
Cascade Pest Control 2 records
Legal and regulatory score: 10.0/10. Records counted in it: none.
October 11, 2026 · Complaint summaryUsed in complaint record
BBB Great West + Pacific
BBB profile (Snohomish, Washington) shows 0 complaints and 0 customer reviews; rating A+, not accredited.37
October 11, 2026 · Complaint summaryShown only
US federal courts (CourtListener)
CourtListener federal docket (RECAP) and opinion searches for the exact phrase “Cascade Pest Control” returned 0 results; searches for “Treftz Corporation” also returned 0. (Negative check only; does not cover Washington and Idaho state trial courts.)38
Interstate Pest Management 3 records
Legal and regulatory score: 10.0/10. Records counted in it: none.
October 11, 2026 · Complaint summaryUsed in complaint record
BBB Great West + Pacific
BBB: 1 complaint in the last 3 years, 0 in the last 12 months. The one published complaint (01/05/2024, ‘Service or Repair Issues’, status Answered) says the customer paid an initial fee plus $50/month for quarterly visits but had not been serviced for almost a year; the business responded 02/09/2024 apologizing and promising a refund.39
October 11, 2026 · PermitShown only
Oregon
Oregon CCB license summary (each section covers the past 10 years): no complaints (claims) filed and ‘No’ to civil penalties or other sanctions (license suspensions); under ‘Administrative Suspensions’ it answers ‘Yes’ to whether the CCB has ever suspended this contractor for lack of bond/insurance. The date and length of that suspension are not shown.38
October 4, 2018 · PermitShown only
Oregon
Oregon assumed business name ‘INTERSTATE PEST MANAGEMENT INC.’ (1240751-93) went inactive for failure to renew. Registry status only; no enforcement action found.36
Keep reading
- Cascade Pest Control review#1 in Pacific Northwest pest control
- Interstate Pest Management review#2 in Pacific Northwest pest control
- The Pacific Northwest pest control rankingsThe full rankings, with every factor score
- How we review companiesThe five factors, their weights and what we count
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