Winterbourne Construction LLC

Is Winterbourne Construction LLC Licensed?

Washington L&I records list Winterbourne Construction LLC with registration number WINTECL811M6 and status ACTIVE, valid until Sep 30, 2027. The business address on file is in Walla Walla, WA 99362.

License Details

License #

WINTECL811M6

Status

ACTIVE

License type

Construction Contractor

Specialty

General

First effective

Jul 26, 2019

Expires

Sep 30, 2027

Business type

Limited Liability Company

UBI (state business ID)

602905253

City

Walla Walla, WA 99362

Bond and Insurance on File

Surety bond

$30,000 · NORTH RIVER INSURANCE COMPANY THE
Effective Sep 30, 2024 · Until Canceled

Liability insurance

$1,000,000 · Cincinnati Specialty Underwrit
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 334 days left before it expires on Sep 30, 2027. Check that date against your project timeline.

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

How This Record Compares in Walla Walla

Winterbourne Construction LLC has held registration WINTECL811M6 for 7.3 years. The median for the 271 active general contractors with a Walla Walla address is 6.2 years, and 93 of them have held their registration for 10 years or more, so this registration is at or above the local median. 38 of them registered in the last 12 months.

100% of these Walla Walla records have a surety bond on file and 99% 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

• Jul 26, 2019: Current registration WINTECL811M6 took effect.
• Sep 30, 2024: $30,000 surety bond with NORTH RIVER INSURANCE COMPANY THE took effect.
• Oct 30, 2026: Our copy of the L&I record was taken.
• Sep 21, 2027: Cincinnati Specialty Underwrit liability policy on file expires.
• Sep 30, 2027: Registration expires unless renewed.

Other L&I Registrations Under UBI 602905253

The L&I file lists 1 other contractor registration under the same state business ID (UBI). Older numbers usually reflect renewals under a new number, name changes or a change of business structure.

• GREENHC906CQ · Green Home Contractors LLC · RE-LICENSED · effective Feb 18, 2010, expires Apr 27, 2020

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

1. Use the Confirm on L&I Verify button and search registration WINTECL811M6 or UBI 602905253. The status there is the official one.
2. Check that the name on your bid or contract matches Winterbourne 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 Cincinnati Specialty Underwrit 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.

Other General Contractors in Walla Walla

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

• 2 G Construction · General · expires Mar 2, 2028
• 24 Hour Septic LLC · General · expires Sep 12, 2028
• 3A Construction LLC · General · expires May 11, 2028
• 4 Seasons Color Inc · General · expires Mar 20, 2027
• 519 Design Build LLC · General · expires May 19, 2027
• 5G Flooring & Tile LLC · General · expires Mar 5, 2027
• A T All Concrete Works LLC · General · expires Jul 20, 2027
• A T P Construction LLC · General · expires Nov 3, 2027

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