General contractor · Renton, WA

Westwater Construction Company

Active Washington registration WESTWCC110KD · per L&I records

LicensedBondedInsured

Is Westwater Construction Company Licensed?

Washington L&I records list Westwater Construction Company with registration number WESTWCC110KD and status ACTIVE, valid until Aug 6, 2027. The business address on file is in Renton, WA 98058.

License Details

License #: WESTWCC110KD
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: May 4, 1989
Expires: Aug 6, 2027
Business type: Corporation
UBI (state business ID): 601173970
City: Renton, WA 98058

Bond and Insurance on File

Surety bond: $30,000 · Merchants Bonding Co (Mutual)
Effective Aug 6, 2025 · Until Canceled
Liability insurance: $1,000,000 · Alaska National Insurance Co
Expires Jul 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 279 days left before it expires on Aug 6, 2027. Check that date against your project timeline.

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

How This Record Compares in Renton

Westwater Construction Company has held registration WESTWCC110KD for 37.5 years. The median for the 861 active general contractors with a Renton address is 5 years, and 222 of them have held their registration for 10 years or more, so this registration is among the longer-held ones. 133 of them registered in the last 12 months.

100% of these Renton 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

May 4, 1989: Current registration WESTWCC110KD took effect.
Aug 6, 2025: $30,000 surety bond with Merchants Bonding Co (Mutual) took effect.
Oct 30, 2026: Our copy of the L&I record was taken.
Jul 1, 2027: Alaska National Insurance Co liability policy on file expires.
Aug 6, 2027: 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

Use the Confirm on L&I Verify button and search registration WESTWCC110KD or UBI 601173970. The status there is the official one.
Check that the name on your bid or contract matches Westwater Construction Company exactly (a corporation).
On L&I Verify, look for bond claims, lawsuits and any newer registration.
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.

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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