Washington contractor
WINTERBOURNE CONSTRUCTION LLC
Registered in Washington for 7 years
- License number
- WINTECL811M6
- UBI
- 602905253
- Trade
- General contractor(all general contractor contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · GENERAL
- City
- WALLA WALLA, WA(all contractors in Walla Walla)
- Phone
- (509) 520-5320
Current verification
- Found: Active Washington contractor registration
- Found: Current bond record found
- Found: Current liability insurance record found
- Found: No Attorney General complaint records found
- Review: 1 other license record under the same UBI
From the state records below; each section shows its source and when it was last synced.
Registration
- Status
- ACTIVE
- Effective date
- July 26, 2019
- Expiration date
- September 30, 2027
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Related licenses
One other license number is registered under the same UBI, 602905253. A UBI identifies one business with the state; a business may hold more than one license, renew under a new number, or register a new license after an earlier one closed.
- GREEN HOME CONTRACTORS LLCRE-LICENSED
License GREENHC906CQ · CONSTRUCTION CONTRACTOR · February 18, 2010 to April 27, 2020
L&I describes this status as "relicensed under another name, structure, or specialty." Relicensing is common: a business is given a new license number when it changes its legal structure, name, or specialty.
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
Current bond
- Bond company
- NORTH RIVER INSURANCE COMPANY THE
- Bond number
- 46CF817772
- Amount
- $30,000
- Effective date
- September 30, 2024
- Expiration date
- Until canceled
Bond history
- Bond company
- NORTH RIVER INSURANCE COMPANY THE
- Bond number
- 46cf817772
- Amount
- $12,000
- Effective date
- July 25, 2023
- Expiration date
- September 30, 2024
- Bond company
- American Contractors Indem CO
- Bond number
- 100454163
- Amount
- $12,000
- Effective date
- July 25, 2019
- Expiration date
- Not on record
- Cancellation date
- December 9, 2023
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- Cincinnati Specialty Underwrit
- Policy number
- CSU0294122
- Coverage amount
- $1,000,000
- Effective date
- September 21, 2026
- Expiration date
- September 21, 2027
L&I publishes only the policy currently on file. Earlier policies are kept from our own nightly syncs, which began October 6, 2026.
Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced October 9, 2026.
People
Principals L&I lists for this license.
- WINTERBOURNE, IAN EMANUELSince July 26, 2019
Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Attorney General complaints
No Attorney General complaint records found.
Matched on business name and city: WINTERBOURNE CONSTRUCTION in WALLA WALLA. Complaints filed under another name or city are not included.
A complaint record does not establish that the business violated the law.
Source: Attorney General Consumer Complaints, Washington State Attorney General's Office. Last synced October 9, 2026.
Record history
Changes to this contractor's state records since we began tracking them. The state's current-status tools do not show these.
No changes recorded since our records began on October 6, 2026.
Sources
- L&I Contractor License Data - General, Washington State Department of Labor & Industries
- L&I Contractor License Data - Bond, Washington State Department of Labor & Industries
- L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries
- L&I Contractor License - Principal Data, Washington State Department of Labor & Industries
- Attorney General Consumer Complaints, Washington State Attorney General's Office
Record last synced October 7, 2026.
Check this record against the state directly on L&I's Verify a Contractor page (search by license number WINTECL811M6).