General contractor · Renton, WA

Nw Stoneworx LLC

Active · expires in 46 days Washington registration NWSTOSL813J6 · per L&I records

LicensedBondedInsured

Is Nw Stoneworx LLC Licensed?

Washington L&I records list Nw Stoneworx LLC with registration number NWSTOSL813J6 and status ACTIVE, valid until Dec 16, 2026. The business address on file is in Renton, WA 98059.

License Details

License #: NWSTOSL813J6
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: Apr 26, 2019
Expires: Dec 16, 2026
Business type: Limited Liability Company
UBI (state business ID): 604383269
City: Renton, WA 98059

Bond and Insurance on File

Surety bond: $30,000 · Nationwide Mutual Ins Co
Effective Sep 21, 2026 · Until Canceled
Liability insurance: $1,000,000 · Houston Casualty Co
Expires Sep 21, 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 46 days left before it expires on Dec 16, 2026. If your project runs past that date, ask whether the business has renewed.

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

How This Record Compares in Renton

Nw Stoneworx LLC has held registration NWSTOSL813J6 for 7.5 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 at or above the local median. 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

Apr 26, 2019: Current registration NWSTOSL813J6 took effect.
Sep 21, 2026: $30,000 surety bond with Nationwide Mutual Ins Co took effect.
Oct 30, 2026: Our copy of the L&I record was taken.
Dec 16, 2026: Registration expires unless renewed.
Sep 21, 2027: Houston Casualty Co liability policy on file expires.

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 NWSTOSL813J6 or UBI 604383269. The status there is the official one.
Check that the name on your bid or contract matches Nw Stoneworx LLC exactly (a limited liability company).
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 Houston Casualty 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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