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Cascade Pest Control vs. Interstate Pest Management

Two craftsman porches side by side, one with a green door and one with a terracotta door, each with a blank checklist on a clipboard.

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

Ranked #1

Cascade Pest Control9.6/10

Handshake Score. #1 in Pacific Northwest pest control

Ranked #2

Interstate Pest Management9.5/10

Handshake Score. #2 in Pacific Northwest pest control

Cascade Pest Control and Interstate Pest Management at a glance
Cascade Pest ControlInterstate Pest Management
Rank#1 in Pacific Northwest pest control#2 in Pacific Northwest pest control
ConfidenceMediumHigh
Provisional scoreNoNo
Door-to-door salesNot found7, 10Not found9, 10, 11, 6
OwnershipIndependent6, 7, 8Independent4, 6, 7, 8
HeadquartersSnohomish, Washington2, 3, 4Kelso, Washington2, 3, 4, 5
States on fileWashington and Idaho5 locationsWashington and Oregon5 locations
Record verifiedOctober 13, 2026October 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.

Handshake Score factors: Cascade Pest Control and Interstate Pest Management
Cascade Pest ControlInterstate Pest Management
Customer satisfaction 30%9.39.7
Interstate Pest Management scores higher on customer satisfaction (9.7 vs. 9.3).
Complaint record 20%10.010.0
Tied on complaint record (10.0 each).
Sales and contract fairness 20%9.58.0
Cascade Pest Control scores higher on sales and contract fairness (9.5 vs. 8.0).
Licensing and compliance 15%9.010.0
Interstate Pest Management scores higher on licensing and compliance (10.0 vs. 9.0).
Legal and regulatory record 15%10.010.0
Tied on legal and regulatory record (10.0 each).
Handshake Score9.6/109.5/10
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.

Workplace scores: Cascade Pest Control and Interstate Pest Management
Cascade Pest ControlInterstate Pest Management
Workplace scoreN/AN/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.

Google reviews: Cascade Pest Control and Interstate Pest Management
Cascade Pest ControlInterstate Pest Management
Google listings in the PNW105
Google reviews3,2808,078
Google average4.95.0

Cascade Pest Control 15 review profiles

Review profiles recorded for Cascade Pest Control
Platform and scopeRatingReviewsSource
GoogleSnohomish, Washington4.9/51,107View
GoogleSeattle, Washington4.9/5854View
GoogleWashington service-area listing4.8/5587View
GoogleBellevue, Washington4.9/5576View
GoogleBoise, Idaho5.0/563View
GoogleAnacortes, Washington5.0/545View
GoogleWashington service-area listing5.0/532View
GoogleWashington service-area listing5.0/58View
GoogleWashington service-area listing5.0/57View
GoogleWashington service-area listing5.0/51View
BBBSnohomish, Washington—0View
Puget Sound Consumers' CheckbookBellevue, Washington73% gave a “superior” overall rating; Prices 123% higher than average—185View
Facebookcompany page94% recommend (32 reviews)—32View
Experience.comBothell, Washington4.5/52View
GuildQualityBoise, Idaho—0View

Interstate Pest Management 13 review profiles

Review profiles recorded for Interstate Pest Management
Platform and scopeRatingReviewsSource
GooglePortland, Oregon5.0/52,506View
GoogleKelso, Washington4.9/52,346View
GoogleVancouver, Washington5.0/51,751View
GoogleOlympia, Washington5.0/51,195View
GoogleSalem, Oregon5.0/5280View
BBBHQ Kelso, Washington + corporate branches1.0/51View
AngiKelso, Washington4.9/57View
HomeAdvisorKelso, Washington5.0/55View
FacebookCompany page96% recommend103View
BirdeyeKelso, Washington4.9/52,662View
OtherBestProsInTown, Kelso, Washington4.9/5280View
FacebookKelso, Washington page ‘Interstate Pest Management—3View
OtherPortland, Oregon—7View

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.

BBB records: Cascade Pest Control and Interstate Pest Management
Cascade Pest ControlInterstate Pest Management
BBB gradeA+6A+4, 31, 32
AccreditedNoYes, since 9/14/2016
Complaints, last 3 years01
BBB customer reviewsNo reviews1.0/5 average from 1 review
Profile scopeNot recordedNot recorded
RetrievedOctober 11, 2026October 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)

Licenses and registrations for Cascade Pest Control
StateAuthority and typeNumberStatusExpiresSource
WashingtonWashington 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 Pest8577 (designated Commercial Applicator: Kevin Robin Peterson)Renewed12/31/20262
WashingtonWSDA - pesticide licensingIndividual license of Kurt B Treftz (the ‘Pest Control License #88604’ printed in the company website footer). Commercial Applicator: Invalid; Commercial Operator: Renewed88604Commercial Applicator Invalid; Commercial Operator Renewed12/31/2026 (Commercial Operator)29
WashingtonWSDA - pesticide licensingIndividual license of Kevin Robin Peterson (General Manager): Commercial Applicator designated for Treftz Corporation; Commercial Operator expired; Structural Pest Inspector expired8577Commercial Applicator Renewed; Commercial Operator Expired; Structural Pest Inspector Expired12/31/2026 (Commercial Applicator)30
WashingtonWashington Dept. of Labor & Industries (contractor registration, via data.wa.gov)Construction Contractor - specialty Structural Pest Control; Corporation; UBI 600390731CASCAPC952RLACTIVEJanuary 8, 202831
IdahoIdaho Secretary of State (business registry)Foreign Business Corporation - The Treftz Corporation (formed in Washington); registered agent Ashley Risting, 2911 N Grandee St, Boise6408636Active-Good StandingAR due 08/31/202732
IdahoIdaho Secretary of State (business registry)Assumed Business Name - Cascade Pest Control (mailing address 2911 N Grandee St, Boise)6426755Active-CurrentNot shown33
IdahoIdaho State Department of Agriculture (ISDA) - pesticide applicator licensingProfessional applicator - Sakhom Thien (Cascade field manager, Boise); categories CO IP OP99529Listed (ISDA lookup returns active licenses only; no explicit status field)12/31/202634
IdahoISDA - pesticide applicator licensingProfessional applicator - Kevin Peterson (Snohomish, Washington; Cascade general manager); categories CO IP OP99530Listed (ISDA lookup returns active licenses only; no explicit status field)12/31/202635
WashingtonWashington 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, Snohomish600390731 (UBI)Activeannual 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)

Licenses and registrations for Interstate Pest Management
StateAuthority and typeNumberStatusExpiresSource
WashingtonWashington 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 Control229Renewed12/31/202633
WashingtonWSDA Structural Pest Inspector (SPI) programSPI company responsible party (Bradley Thorstenson); 6 company-employed SPIs229Renewed12/31/202633
OregonOregon Dept. of Agriculture (ODA) Pesticide LicensingCommercial Pesticide Operator; categories: IIHS General Pests, IIHS Structural Pests, Ornamental & Turf Insecticide & Fungicide, Right of WayAG-L0000148CPOActive12/31/20264, 34
WashingtonWashington Secretary of State (via OpenCorporates mirror)Washington Profit Corporation ‘INTERSTATE PEST CONTROL, INC.’601415219ActiveNot shown35
OregonOregon Secretary of State Corporation DivisionForeign Business Corporation (FBC), jurisdiction Washington, ‘INTERSTATE PEST CONTROL INC.’605169-87ACTNext renewal 11-20-20278
OregonOregon Secretary of State Corporation DivisionAssumed Business Name (ABN) ‘INTERSTATE PEST MANAGEMENT INC.’ (authorized representative: Interstate Pest Control Inc.)1240751-93INA (inactive)Not shown36
WashingtonWashington Dept. of Labor & Industries (contractor registration, data.wa.gov)Construction Contractor, specialty ‘Structural Pest Control’INTERPC088QPACTIVEJuly 18, 202837
OregonOregon Construction Contractors Board (CCB)Residential Specialty Contractor127319Active1/26/202838

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