Msi Mech Systems INC

Plumbing · Based in Hillsboro, OR · Licensed in Washington · License #MSIMESI099BQ

Registration expired per WA L&I as of Mar 22, 2023.

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Are they licensed, bonded, and insured?

Registration expired per WA L&I as of Mar 22, 2023.

Source:License facts on this pageVerify at WA L&I

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License facts

Msi Mech Systems INC has been registered with WA L&I since 1991, based in Hillsboro, OR. Principals on record since 1980.

License type
CONSTRUCTION CONTRACTOR
Effective date
Jan 18, 1991
Expiration date
Mar 22, 2023
UBI
601294486
Business type
Corporation
Phone
(503) 466-2222
Location
Hillsboro, OR 97124

Source: WA L&I contractor registration — checked 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

To register as a specialty contractor in Washington, a business must file a $15,000 surety bond with the Department of Labor & Industries; 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.

Principals

NameStart date
Robert W TroutSep 27, 2010
Russell KostersSep 27, 2010
Thomas S WoollettJan 1, 1980
Sheri R WoollettJan 1, 1980
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. As a condition of registration, contractors in this category file a $15,000 surety bond and proof of general liability insurance with WA L&I.

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Built from Washington State L&I public records, updated Aug 15, 2026. Subser doesn't do star ratings or reviews — just verified records.