Sierra Construction Co Inc

Is Sierra Construction Co Inc Licensed?

Washington L&I records list Sierra Construction Co Inc with registration number SIERRCC145N8 and status ACTIVE, valid until Mar 31, 2028. The business address on file is in Woodinville, WA 98072.

License Details

License #

SIERRCC145N8

Status

ACTIVE

License type

Construction Contractor

Specialty

General

First effective

Aug 28, 1986

Expires

Mar 31, 2028

Business type

Corporation

UBI (state business ID)

600634891

City

Woodinville, WA 98072

Bond and Insurance on File

Surety bond

$30,000 · Safeco Ins Co of America
Effective Mar 31, 2026 · Until Canceled

Liability insurance

$1,000,000 · Alaska National Insurance Co
Expires Mar 31, 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 517 days left before it expires on Mar 31, 2028. Check that date against your project timeline.

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

How This Record Compares in Woodinville

Sierra Construction Co Inc has held registration SIERRCC145N8 for 40.2 years. The median for the 356 active general contractors with a Woodinville address is 9.8 years, and 177 of them have held their registration for 10 years or more, so this registration is among the longer-held ones. 38 of them registered in the last 12 months.

99% of these Woodinville 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

• Aug 28, 1986: Current registration SIERRCC145N8 took effect.
• Mar 31, 2026: $30,000 surety bond with Safeco Ins Co of America took effect.
• Oct 30, 2026: Our copy of the L&I record was taken.
• Mar 31, 2027: Alaska National Insurance Co liability policy on file expires.
• Mar 31, 2028: Registration expires unless renewed.

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 SIERRCC145N8 or UBI 600634891. The status there is the official one.
2. Check that the name on your bid or contract matches Sierra Construction Co 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 Alaska National Insurance 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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