Mercer Island Plumbing INC

Plumbing · Maple Valley, WA · License #MERCEIP044QQ

Inactive

WA L&I status: OUT OF BUSINESS

State-verifiedWhat does verified mean?
  • State-verified Checked against WA L&I records, updated daily.
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  • Proven on Subser The business runs real jobs through Subser — measured performance, not reviews.

License facts

Mercer Island Plumbing INC is one of 8 Plumbing contractors registered in Maple Valley, registered with WA L&I since 1996. Registered longer than roughly 75% of Plumbing contractors in Maple Valley.

License type
CONSTRUCTION CONTRACTOR
Effective date
Nov 18, 1996
Expiration date
Nov 18, 2022
Suspend date
Jan 26, 2022
UBI
601751336
Business type
Corporation
Phone
(425) 432-7189
Location
Maple Valley, WA 98038

Source: WA L&I contractor registration — verified Aug 15, 2026. Applies to every row above.

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Bond & 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.

What is a Plumbing 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 8 Plumbing contractors registered in Maple Valley.

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Built from Washington State L&I public records, updated Aug 15, 2026. No star ratings or reviews — verification only.