ContractorHistory

Washington contractor

MAD PIPERS PLUMBING LLC

First registered in Washington on November 5, 2018

License number
MADPIPP820QE
UBI
604340258
Trade
Plumbing(all plumbing contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · PLUMBING
City
SNOHOMISH, WA(all contractors in Snohomish)
Phone
(425) 418-0814

A newer license record under the same UBI is on file: MAD PIPERS PLUMBING LLC, license MADPIPP766QF, ACTIVE, effective February 10, 2025. See Related licenses below.

Current verification

  • Found: No Attorney General complaint records found
  • Review: Registration is not currently active
  • Review: Registration appears to be expired
  • 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
EXPIRED
Effective date
November 5, 2018
Expiration date
November 5, 2022

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, 604340258. 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 MADPIPP766QF · CONSTRUCTION CONTRACTOR · February 10, 2025 to February 10, 2027

  • License MADPIPP781QZ · PLUMBING CONTRACTOR · November 15, 2022 to November 15, 2026

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 October 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 October 9, 2026.

People

Principals L&I lists for this license.

  • ROSS, RAGEN JOHNSince November 5, 2018
  • WALKER, ZECHARIAH DAVIDSince November 5, 2018

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: MAD PIPERS PLUMBING in SNOHOMISH. Complaints filed under another name or city are not included.

2 other registered contractors share this business name and city: MAD PIPERS PLUMBING LLC (MADPIPP766QF, ACTIVE), MAD PIPERS PLUMBING LLC (MADPIPP781QZ, ACTIVE). 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 MADPIPP820QE).