General contractor · Moses Lake, WA

Mountain Rock Installation LLC

Active Washington registration MOUNTRI840KO · per L&I records

LicensedBondedInsured

Is Mountain Rock Installation LLC Licensed?

Washington L&I records list Mountain Rock Installation LLC with registration number MOUNTRI840KO and status ACTIVE, valid until May 22, 2028. The business address on file is in Moses Lake, WA 98837.

License Details

License #: MOUNTRI840KO
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: May 20, 2016
Expires: May 22, 2028
Business type: Limited Liability Company
UBI (state business ID): 603594889
City: Moses Lake, WA 98837

Bond and Insurance on File

Surety bond: $30,000 · MERCHANTS NATIONAL BONDING INC
Effective Mar 20, 2026 · Until Canceled
Liability insurance: $2,000,000 · State National Ins Co Inc
Expires Mar 20, 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 569 days left before it expires on May 22, 2028. Check that date against your project timeline.

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

How This Record Compares in Moses Lake

Mountain Rock Installation LLC has held registration MOUNTRI840KO for 10.4 years. The median for the 314 active general contractors with a Moses Lake address is 5.8 years, and 97 of them have held their registration for 10 years or more, so this registration is among the longer-held ones. 41 of them registered in the last 12 months.

100% of these Moses Lake 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 $2,000,000, which is above that median. Insurance amounts are what the insurer reported to L&I; they are not a rating of the business.

Record Timeline

May 20, 2016: Current registration MOUNTRI840KO took effect.
Mar 20, 2026: $30,000 surety bond with MERCHANTS NATIONAL BONDING INC took effect.
Oct 30, 2026: Our copy of the L&I record was taken.
Mar 20, 2027: State National Ins Co Inc liability policy on file expires.
May 22, 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

Use the Confirm on L&I Verify button and search registration MOUNTRI840KO or UBI 603594889. The status there is the official one.
Check that the name on your bid or contract matches Mountain Rock Installation 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 State National Ins Co Inc 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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