Washington L&I Data · Updated Oct 30, 2026Free and Independent · Not a Government Site

Plumbing contractor · Seattle, WA

Knockout Plumbing & Mech LLC

Active  Washington registration KNOCKPM743K9 · per L&I records

LicensedBondedInsured

Is Knockout Plumbing & Mech LLC Licensed?

Washington L&I records list Knockout Plumbing & Mech LLC with registration number KNOCKPM743K9 and status ACTIVE, valid until Jun 2, 2028. The business address on file is in Seattle, WA 98178.

License Details

License #
KNOCKPM743K9
Status
ACTIVE
License type
Plumbing Contractor
Specialty
Journey Level
First effective
Jun 2, 2026
Expires
Jun 2, 2028
Business type
Limited Liability Company
UBI (state business ID)
604427827
City
Seattle, WA 98178

Bond and Insurance on File

Surety bond
$6,000 · Philadelphia Indemnity Ins Co
Effective Aug 3, 2026 · Until Canceled
Liability insurance
$1,000,000 · Federated Mutual Ins Co
Expires Jul 14, 2027
Accuracy notice. Data from Washington L&I open data (public domain, PDDL), not affiliated with any government. Records change; confirm on the official L&I Verify tool before hiring. Search other businesses with the Washington contractor license lookup.

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