Seattle Mechanical Inc

Is Seattle Mechanical Inc Licensed?

Washington L&I records list Seattle Mechanical Inc with registration number SEATTMI821MQ and status ACTIVE, valid until Jul 26, 2028. The business address on file is in Seattle, WA 98109.

License Details

License #

SEATTMI821MQ

Status

ACTIVE

License type

Construction Contractor

Specialty

General

First effective

Jul 18, 2018

Expires

Jul 26, 2028

Business type

Corporation

UBI (state business ID)

601639848

City

Seattle, WA 98109

Bond and Insurance on File

Surety bond

$30,000 · Ohio Cas Ins Co
Effective Jul 1, 2024 · Until Canceled

Liability insurance

$1,000,000 · Western National Assur Co
Expires Aug 1, 2027

What Active Status Means

The registration is current: L&I has a bond and liability insurance on file and the term has not ended. ACTIVE is necessary but not sufficient, so also check the expiry date, the bond and the insurance below.

Can this business work under this registration? Can work while it stays active.

The registration has 634 days left before it expires on Jul 26, 2028. Check that date against your project timeline.

All status codes are explained in Washington Contractor License Statuses Explained.

How This Record Compares in Seattle

Seattle Mechanical Inc has held registration SEATTMI821MQ for 8.3 years. The median for the 2,643 active general contractors with a Seattle address is 6.2 years, and 928 of them have held their registration for 10 years or more, so this registration is at or above the local median. 383 of them registered in the last 12 months.

99% of these Seattle records have a surety bond on file and 100% have liability insurance on file. The median insurance amount on file is $1,000,000; this business lists $1,000,000, which is equal to that median. Insurance amounts are what the insurer reported to L&I; they are not a rating of the business.

Record Timeline

• Jul 18, 2018: Current registration SEATTMI821MQ took effect.
• Jul 1, 2024: $30,000 surety bond with Ohio Cas Ins Co took effect.
• Oct 30, 2026: Our copy of the L&I record was taken.
• Aug 1, 2027: Western National Assur Co liability policy on file expires.
• Jul 26, 2028: Registration expires unless renewed.

Other L&I Registrations Under UBI 601639848

The L&I file lists 1 other contractor registration under the same state business ID (UBI). Older numbers usually reflect renewals under a new number, name changes or a change of business structure.

• SEATTMI804CD · Seattle Mechanical Inc · SUSPENDED · effective Mar 3, 2020, expires Mar 3, 2028

Checks for General Contractors

• General contractors must file a $30,000 surety bond (RCW 18.27.040, effective July 1, 2024). This record lists a $30,000 bond. See General vs Specialty Contractor Registration in Washington.
• Use a general contractor when the project involves more than one trade. Subcontractors on your job must be registered too.
• Compare bids on scope, schedule and payment terms, not just the total.
• More detail: How to Choose a General Contractor in Washington.

How to Verify This Contractor

1. Use the Confirm on L&I Verify button and search registration SEATTMI821MQ or UBI 601639848. The status there is the official one.
2. Check that the name on your bid or contract matches Seattle Mechanical Inc exactly (a corporation).
3. On L&I Verify, look for bond claims, lawsuits and any newer registration.
4. Ask for a certificate of insurance sent directly by the insurer, and compare it with the Western National Assur Co policy on file.

A full walkthrough is in How to Check a Contractor License in Washington.

Record data as of Oct 30, 2026, from the Washington L&I contractor file.

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