Redwood Backflow
Plumbing Specialty · Redmond, WA · License #REDWOB*933PU
Re-licensed per WA L&I — this registration was replaced.
WA L&I status: RE-LICENSED
Redwood Backflow is one of 11 Plumbing Specialty contractors registered in Redmond, registered with WA L&I since 2007. Registered longer than roughly half of Plumbing Specialty contractors in Redmond.
How confident can you be in Redwood Backflow?
Are they licensed, bonded, and insured?
Registration not currently active per WA L&I.
Are they who they say they are?
Not yet verified — Redwood Backflow 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 Redmond.
Do they have jobs on record?
Not yet measured — Redwood Backflow 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
- Oct 31, 2007
- Expiration date
- Oct 31, 2021
- UBI
- 601809382
- Business type
- Limited Liability Company
- Phone
- (425) 495-1939
- Location
- Redmond, WA 98052
Source: WA L&I contractor registration — checked Sep 26, 2026. Applies to every row above.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| Lexon Ins Co | $6,000 | Oct 31, 2011 | Canceled Oct 31, 2021 |
What the bond and insurance requirements mean for homeowners
A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (general contractors file $30,000).
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.
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. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 11 Plumbing Specialty contractors registered in Redmond.
Looking for reviews of Redwood Backflow?
Subser doesn't have reviews or star ratings. This page shows Redwood Backflow's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Redwood Backflow? Claim the listing free. Worked with Redwood Backflow? Endorse them from your own listing.
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Built from Washington State L&I public records, updated Sep 26, 2026. Subser doesn't do star ratings or reviews — just verified records.