Washington contractor
O'NEILL PLUMBING CO
Registered in Washington for 5 years
- License number
- ONEILPC793ND
- UBI
- 600144508
- Trade
- Plumbing(all plumbing contractors in Washington)
- L&I license type and specialty
- PLUMBING CONTRACTOR · JOURNEY LEVEL
- City
- SEATTLE, WA(all contractors in Seattle)
- Phone
- (206) 932-5283
Current verification
- Found: Active Washington contractor registration
- Found: Current bond record found
- Found: Current liability insurance record found
- Found: No Attorney General complaint records found
- 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
- ACTIVE
- Effective date
- July 26, 2021
- Expiration date
- July 26, 2027
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 COSUSPENDED
License ONEILP*253DP · CONSTRUCTION CONTRACTOR · March 17, 1975 to 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.
Bond
Current bond
- Bond company
- MERCHANTS NATIONAL BONDING INC
- Bond number
- 102017813
- Amount
- $6,000
- Effective date
- September 28, 2026
- Expiration date
- Until canceled
- Bond company
- Federated Mutual Ins Co
- Bond number
- 1971408
- Amount
- $6,000
- Effective date
- July 13, 2026
- Expiration date
- Until canceled
Bond history
- Bond company
- Federated Mutual Ins Co
- Bond number
- 6176356
- Amount
- $6,000
- Effective date
- July 13, 2021
- Expiration date
- Not on record
- Cancellation date
- July 13, 2026
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- Middlesex Insurance Company
- Policy number
- A0313868004
- Coverage amount
- $1,000,000
- Effective date
- August 1, 2026
- Expiration date
- August 1, 2027
- Carrier
- Federated Mutual Ins Co
- Policy number
- 1954454
- Coverage amount
- $1,000,000
- Effective date
- November 10, 2025
- Expiration date
- November 10, 2026
L&I publishes only the policy currently on file. Earlier policies are kept from our own nightly syncs, which began October 6, 2026.
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 26, 2021
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 (ONEILP*253DP, SUSPENDED). 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 ONEILPC793ND).