General contractor · Seattle, WA

A-1 Stone Lndscpng/Const Corps

Active Washington registration A1STOLC975DQ · per L&I records

LicensedBondedInsured

Is A-1 Stone Lndscpng/Const Corps Licensed?

Washington L&I records list A-1 Stone Lndscpng/Const Corps with registration number A1STOLC975DQ and status ACTIVE, valid until Mar 20, 2027. The business address on file is in Seattle, WA 98168.

License Details

License #: A1STOLC975DQ
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: Mar 18, 2003
Expires: Mar 20, 2027
Business type: Corporation
UBI (state business ID): 602260106
City: Seattle, WA 98168

Bond and Insurance on File

Surety bond: $30,000 · Nationwide Mutual Ins Co
Effective Mar 4, 2026 · Until Canceled
Liability insurance: $1,000,000 · Ohio Security Ins Co
Expires Jan 11, 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 140 days left before it expires on Mar 20, 2027. Check that date against your project timeline.

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

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 A1STOLC975DQ or UBI 602260106. The status there is the official one.
Check that the name on your bid or contract matches A-1 Stone Lndscpng/Const Corps 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 Ohio Security Ins 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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