Interstate Pest Management vs. Aspen Pest Control
Interstate Pest Management ranks #2 and Aspen Pest Control ranks #3 in our Pacific Northwest pest control rankings, with Handshake Scores of 9.5 and 9.4 out of 10. Both have locations on file in Washington and 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
| Interstate Pest Management | Aspen Pest Control | |
|---|---|---|
| Rank | #2 in Pacific Northwest pest control | #3 in Pacific Northwest pest control |
| Confidence | High | Medium |
| Provisional score | No | No |
| Door-to-door sales | Not found9, 10, 11, 6 | Not found5, 3, 6, 7 |
| Ownership | Independent4, 6, 7, 8 | Independent3 |
| Headquarters | Kelso, Washington2, 3, 4, 5 | Vancouver, Washington3 |
| States on file | Washington and Oregon5 locations | Washington and Oregon3 locations |
| Record verified | October 11, 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.
| Interstate Pest Management | Aspen Pest Control | |
|---|---|---|
| Customer satisfaction 30% | 9.7 | 10.0 |
| Aspen Pest Control scores higher on customer satisfaction (10.0 vs. 9.7). | ||
| Complaint record 20% | 10.0 | 10.0 |
| Tied on complaint record (10.0 each). | ||
| Sales and contract fairness 20% | 8.0 | 7.0 |
| Interstate Pest Management scores higher on sales and contract fairness (8.0 vs. 7.0). | ||
| Licensing and compliance 15% | 10.0 | 10.0 |
| Tied on licensing and compliance (10.0 each). | ||
| Legal and regulatory record 15% | 10.0 | 10.0 |
| Tied on legal and regulatory record (10.0 each). | ||
| Handshake Score | 9.5/10 | 9.4/10 |
| Interstate Pest Management has the higher Handshake Score (9.5 vs. 9.4). | ||
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.
| Interstate Pest Management | Aspen Pest Control | |
|---|---|---|
| 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.
| Interstate Pest Management | Aspen Pest Control | |
|---|---|---|
| Google listings in the PNW | 5 | 3 |
| Google reviews | 8,078 | 6,796 |
| Google average | 5.0 | 5.0 |
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 |
Aspen Pest Control 8 review profiles
| Platform and scope | Rating | Reviews | Source |
|---|---|---|---|
| GoogleVancouver, Washington | 5.0/5 | 4,321 | View |
| GooglePortland / Happy Valley, Oregon | 5.0/5 | 1,931 | View |
| GoogleRidgefield, Washington | 5.0/5 | 544 | View |
| BBBVancouver, Washington | 5.0/5 | 1 | View |
| AngiVancouver, Washington | 5.0/5 | 104 | View |
| HomeAdvisorVancouver, Washington | 4.9/5 | 21 | View |
| ThumbtackVancouver, Washington | 5.0/5 | 55 | View |
| FacebookVancouver, Washington page | 100% recommend | 38 | View |
Better Business Bureau
Interstate Pest Management. Its BBB profile shows an A+ grade and 1 complaint in the last three years.
Aspen Pest Control. Its BBB profile shows an A+ grade and 0 complaints in the last three years.
| Interstate Pest Management | Aspen Pest Control | |
|---|---|---|
| BBB grade | A+4, 31, 32 | A+4 |
| Accredited | Yes, since 9/14/2016 | Yes, since 10/21/2020 |
| Complaints, last 3 years | 1 | 0 |
| BBB customer reviews | 1.0/5 average from 1 review | 5.0/5 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.
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
Aspen Pest Control 9 terms
Terms of Service (updated 2023): cancelling before the end of the initially scheduled services triggers a $250 contract termination fee; later cancellation must be in writing and prior to 30 days of the next scheduled service.8
Binding arbitration clause (American Arbitration Association rules, in Vancouver, Washington) in the Terms of Service.8
Liability limited to the amount paid; agreement does not cover termites, bed bugs, wildlife, fleas or ticks unless noted.8
Late payments: 1.5% monthly finance charge on invoices over 30 days past due; $10 extra for Saturday regular services.8
Home Protection Plan is a quarterly (every 90 days) exterior treatment with interior included on request.9
Guarantee: unlimited free re-service between regular treatments; one-off treatments typically carry a minimum 30-day guarantee.10
Late-arrival promise: next regular service free if technician is late without calling ahead.11
Reviewer-reported prices on Angi range roughly $90–$230 per job (e.g. $90, $119, $200, $230).12
A 2018 HomeAdvisor reviewer reports a better rate with a contract but says customers are not locked in.13
Licensing and registrations
Status and expiry dates are shown exactly as the issuing agency’s record showed them on the date retrieved.
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 |
Aspen Pest Control 6 records (Washington 3, Oregon 2, US 1)
| State | Authority and type | Number | Status | Expires | Source |
|---|---|---|---|---|---|
| Washington | Washington State Department of Agriculture (WSDA) pesticide licensingCommercial Applicator (individual: Hampton, Joseph M; designated Commercial Applicator for Aspen Pest Control, Inc); categories Ornamental Insect and Disease, Ornamental Weed, PCO Structural, PCO General | 87471 | Renewed | 12/31/2026 | 22 |
| Washington | WSDA company searchCommercial applicator business record | Not shown | Listed (1 result) | Not shown | 2 |
| Oregon | Oregon Department of Agriculture (ODA) pesticide license searchCommercial Pesticide Operator; categories IIHS General Pests, IIHS Structural Pests, Ornamental & Turf Insecticide & Fungicide; mailing/DBA Vancouver Washington 98682 (Clark) | AG-L1030820CPO | Active | 31-DEC-26 | 23 |
| Washington | Washington Secretary of State (via OpenCorporates mirror)Washington Profit Corporation (UBI) | 603382167 | Active | Not shown | 24 |
| Oregon | Oregon Secretary of State business registry (data.oregon.gov Active Businesses dataset)Foreign Business Corporation (jurisdiction Washington) | 100405596 | Active (listed in active-businesses dataset) | Not shown | 25 |
| US | USPTO (via Justia Trademarks)Trademark ASPEN PEST CONTROL (serial number) | 87703286 | Not shown | Not shown | 26 |
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.
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
Aspen Pest Control 5 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 shows 0 complaints for Aspen Pest Control, Inc. (BBB profiles generally cover a three-year reporting period).27
October 11, 2026 · Complaint summaryShown only
US courts (CourtListener)
CourtListener RECAP Archive (federal PACER dockets) search for “Aspen Pest Control” returned no results; CourtListener notes RECAP does not contain everything in PACER.28
October 11, 2026 · EnforcementShown only
Washington (WSDA)
Searched WSDA’s published pesticide enforcement action lists for 2019-2025 (7 PDFs linked from the enforcement page): no case names Aspen Pest Control, Joseph Hampton or license 87471. The 2026 list is now posted as a Q3 PDF (cases AESPC-26-0010 to -0015); the verifier checked it on October 11, 2026 and found no Aspen entry.29
October 11, 2026 · EnforcementShown only
Washington (WSDA)
WSDA 2025 year-end enforcement list (most recent full year) checked; no Aspen entry.30
October 11, 2026 · EnforcementShown only
Oregon (ODA)
ODA ‘Recent Pesticides Violations and Penalties’ dataset (377 records, September 6, 2023 to June 29, 2026) queried for party names containing ASPEN or HAMPTON: no records.31
Keep reading
- Interstate Pest Management review#2 in Pacific Northwest pest control
- Aspen Pest Control review#3 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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