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

General contractor · Shoreline, WA

Cornerstone Construction LLC

Active  Washington registration CORNECL768C6 · per L&I records

LicensedBondedInsured

Is Cornerstone Construction LLC Licensed?

Washington L&I records list Cornerstone Construction LLC with registration number CORNECL768C6 and status ACTIVE, valid until Feb 26, 2028. The business address on file is in Shoreline, WA 98133.

License Details

License #
CORNECL768C6
Status
ACTIVE
License type
Construction Contractor
Specialty
General
First effective
Feb 26, 2024
Expires
Feb 26, 2028
Business type
Limited Liability Company
UBI (state business ID)
605401716
City
Shoreline, WA 98133

Bond and Insurance on File

Surety bond
$30,000 · Nationwide Mutual Ins Co
Effective Jan 22, 2025 · Until Canceled
Liability insurance
$1,000,000 · Houston Casualty Co
Expires Feb 7, 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 483 days left before it expires on Feb 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 Shoreline

Cornerstone Construction LLC has held registration CORNECL768C6 for 2.7 years. The median for the 212 active general contractors with a Shoreline address is 4.7 years, and 60 of them have held their registration for 10 years or more, so this registration is newer than most in Shoreline. 36 of them registered in the last 12 months.

100% of these Shoreline 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

  • Feb 26, 2024: Current registration CORNECL768C6 took effect.
  • Jan 22, 2025: $30,000 surety bond with Nationwide Mutual Ins Co took effect.
  • Oct 30, 2026: Our copy of the L&I record was taken.
  • Feb 7, 2027: Houston Casualty Co liability policy on file expires.
  • Feb 26, 2028: Registration expires unless renewed.

Checks for General Contractors

How to Verify This Contractor

  1. Use the Confirm on L&I Verify button and search registration CORNECL768C6 or UBI 605401716. The status there is the official one.
  2. Check that the name on your bid or contract matches Cornerstone Construction LLC exactly (a limited liability company).
  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 Houston Casualty Co policy on file.

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

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

Other General Contractors in Shoreline

Active general contractor registrations with a Shoreline address in the same L&I file. Listing here is not an endorsement.

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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