Washington contractor
MOUNTAIN STATES CONST CO
Registered in Washington for 61 years
- License number
- MOUNTSC352DC
- UBI
- 393002413
- Trade
- General contractor(all general contractor contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · GENERAL
- City
- SUNNYSIDE, WA(all contractors in Sunnyside)
- Phone
- (509) 837-6822
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
From the state records below; each section shows its source and when it was last synced.
Registration
- Status
- ACTIVE
- Effective date
- March 3, 1965
- Expiration date
- April 10, 2028
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
Current bond
- Bond company
- Hartford Fire Ins Co
- Bond number
- 52BSBDN1643
- Amount
- $30,000
- Effective date
- January 28, 2025
- Expiration date
- Until canceled
Bond history
- Bond company
- Hartford Fire Ins Co
- Bond number
- 52BSBDN1643
- Amount
- $12,000
- Effective date
- January 28, 2009
- Expiration date
- January 7, 2026
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- Zurich American Ins Co
- Policy number
- GLO-0845899-03
- Coverage amount
- $2,000,000
- Effective date
- April 30, 2026
- Expiration date
- April 30, 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.
- STAMSCHROR, HENRY WSince January 1, 1980
- BONDS, ANGELA MARIESince April 11, 2016
- BONDS, DELTONSince March 10, 2026
- STAMSCHROR, BETTY JJanuary 1, 1980 to March 25, 2016
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: MOUNTAIN STATES CONST in SUNNYSIDE. 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 MOUNTSC352DC).