Warnken's Water Works LLC
Plumbing Specialty · Aberdeen, WA · License #WARNKWW917BO
Registration expired per WA L&I as of Jan 20, 2023.
Warnken's Water Works LLC is one of 5 Plumbing Specialty contractors registered in Aberdeen, registered with WA L&I since 2009. Principals on record since 2009.
How confident can you be in Warnken's Water Works LLC?
Are they licensed, bonded, and insured?
Registration expired per WA L&I as of Jan 20, 2023.
Are they who they say they are?
Not yet verified — Warnken's Water Works LLC hasn't claimed this listing. Own this business? Claim it free.
Do other pros stand behind them?
No endorsements yet from other licensed contractors in Aberdeen.
Do they have jobs on record?
Not yet measured — Warnken's Water Works LLC hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.
Subser doesn't do star ratings or reviews — just verified records. What do these mean?
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Jan 20, 2009
- Expiration date
- Jan 20, 2023
- Suspend date
- Apr 4, 2022
- UBI
- 602852076
- Business type
- Limited Liability Company
- Phone
- (360) 532-8773
- Location
- Aberdeen, WA 98520
Source: WA L&I contractor registration — checked Nov 9, 2026. Applies to every row above.
Registration lapsed Jan 2023 per WA L&I records.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
What the bond and insurance requirements mean for homeowners
Washington requires specialty contractors to file a $15,000 surety bond with the Department of Labor & Industries as a condition of registration ($30,000 for general contractors).
The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.
Principals
| Name | Start date |
|---|---|
| Douglas Warnken | Jan 20, 2009 |
| Bonni Warnken | Jan 20, 2009 |
What is a Plumbing Specialty contractor licensed to do in Washington?
A plumbing specialty contractor registration with WA L&I covers plumbing installation and repair work. Individual plumbers in Washington are additionally certified through a separate state plumber-certification program; the contractor registration shown here is the business-level registration. The registration requires a $15,000 surety bond and general liability insurance on file with WA L&I. Washington currently lists 5 Plumbing Specialty contractors registered in Aberdeen.
Looking for reviews of Warnken's Water Works LLC?
Subser doesn't have reviews or star ratings. This page shows Warnken's Water Works LLC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
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Built from Washington State L&I public records, updated Nov 9, 2026. Subser doesn't do star ratings or reviews — just verified records.