Washington contractor
O'NEILL PLUMBING CO
First registered in Washington on March 17, 1975
- License number
- ONEILP*253DP
- UBI
- 600144508
- Trade
- General contractor(all general contractor contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · GENERAL
- City
- SEATTLE, WA(all contractors in Seattle)
- Phone
- (206) 932-5283
Current verification
- Found: No Attorney General complaint records found
- Review: Registration is not currently active
- Review: A registration suspension is on record
- Review: 1 other license record 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
- March 17, 1975
- Expiration date
- March 20, 2027
- Suspension date
- September 15, 2026
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Related licenses
One other license number is registered under the same UBI, 600144508. 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.
- O'NEILL PLUMBING COACTIVE
License ONEILPC793ND · PLUMBING CONTRACTOR · July 26, 2021 to July 26, 2027
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.
- O'NEILL, TIMOTHY SHANNONSince July 27, 2015
- O'NEILL, STEPHANIE JEANNESince April 25, 2025
- BLANCHARD, KATIE JUNESince December 3, 2025
- BLANCHARD, TYLER STEVENSince December 3, 2025
- O'NEILL, TERRY CJanuary 1, 1980 to July 27, 2015
- O'NEILL, WENDYJanuary 1, 1980 to July 27, 2015
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: ONEILL PLUMBING in SEATTLE. Complaints filed under another name or city are not included.
One other registered contractor shares this business name and city: O'NEILL PLUMBING CO (ONEILPC793ND, 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
- L&I Contractor License Data - General, Washington State Department of Labor & Industries
- L&I Contractor License Data - Bond, Washington State Department of Labor & Industries
- L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries
- L&I Contractor License - Principal Data, Washington State Department of Labor & Industries
- Attorney General Consumer Complaints, Washington State Attorney General's Office
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 ONEILP*253DP).