ContractorHistory

Washington contractor

APD PLUMBING & MECHANICAL INC

First registered in Washington on November 17, 2022

License number
APDPLPM789QP
UBI
603618152
Trade
Plumbing(all plumbing contractors in Washington)
L&I license type and specialty
PLUMBING CONTRACTOR · RESIDENTIAL
City
Olympia, WA(all contractors in Olympia)
Phone
(360) 482-2257

Current verification

  • Found: No Attorney General complaint records found
  • Review: Registration is not currently active
  • Review: A registration suspension is on record
  • Review: 2 other license records under the same UBI

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

Registration

Status
SUSPENDED
Effective date
November 17, 2022
Expiration date
November 17, 2026
Suspension date
November 12, 2024

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

2 other license numbers are registered under the same UBI, 603618152. A UBI identifies one business with the state; a business may hold more than one license, renew under a new number, or register a new license after an earlier one closed.

  • License APDPLMI796K7 · CONSTRUCTION CONTRACTOR · May 28, 2021 to May 28, 2025 · suspension date November 12, 2024

  • License APLUMDI820RL · CONSTRUCTION CONTRACTOR · December 13, 2018 to December 13, 2020

    L&I describes this status as "relicensed under another name, structure, or specialty." Relicensing is common: a business is given a new license number when it changes its legal structure, name, or specialty.

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 SUSPENDED status.

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

Liability insurance

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

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

People

Principals L&I lists for this license.

  • WALTHER, HEATHER JOYSince November 17, 2022
  • WALTHER, MICHAEL PAULSince November 17, 2022

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

Attorney General complaints

No Attorney General complaint records found.

Matched on business name and city: APD PLUMBING MECHANICAL in Olympia. Complaints filed under another name or city are not included.

One other registered contractor shares this business name and city: APD PLUMBING & MECHANICAL INC (APDPLMI796K7, EXPIRED). Complaints are matched by business name and city, so any complaint records shown here also appear on those pages. The records do not say which of these contractors a complaint was about.

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 October 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 APDPLPM789QP).