Contractor History
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Registered Washington contractor, based in ALHAMBRA, CA

AMCO STRUCTURES INC

First registered in Washington on April 11, 2023

License number
AMCOSSI772DT
UBI
605132610
Trade
General contractor(all general contractor contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · GENERAL
Business address
ALHAMBRA, CA
Phone
(800) 782-0116

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Current verification

  • Found: No Attorney General complaint records found
  • Review: Registration is not currently active
  • Review: Registration appears to be expired

From the state records below; each section shows its source and when it was last synced.

Registration

Status
EXPIRED
Effective date
April 11, 2023
Expiration date
April 11, 2025
Suspension date
November 7, 2023

Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.

Bond

L&I does not publish bond records for contractors with EXPIRED status.

Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced November 9, 2026.

Liability insurance

L&I does not publish liability insurance records for contractors with EXPIRED status.

Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced November 9, 2026.

People

Principals L&I lists for this license.

  • GILLENWATER, PATRICIA JSince March 28, 2023
  • GILLENWATER II, CORNELLSince April 7, 2023
  • SMITH, AMBER DAWNSince April 7, 2023

Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced November 9, 2026.

Attorney General complaints

No Attorney General complaint records found.

Matched on business name and city: AMCO STRUCTURES in ALHAMBRA. Complaints filed under another name or city are not included.

A complaint record does not establish that the business violated the law.

Source: Attorney General Consumer Complaints, Washington State Attorney General's Office. Last synced November 9, 2026.

Record history

Changes to this contractor's state records since we began tracking them. The state's current-status tools do not show these.

No changes recorded since our records began on October 6, 2026.

Sources

Record last synced October 7, 2026.

Check this record against the state directly on L&I's Verify a Contractor page (search by license number AMCOSSI772DT).