Washington contractor
PROSTO-CONSTRUCTION INC
Registered in Washington for 7 years
- License number
- PROSTI*810DE
- UBI
- 604385806
- Trade
- Siding and gutters(all siding and gutters contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · Siding
- City
- City Of Spokane Vall, WA(all contractors in City Of Spokane Vall)
- Phone
- (253) 293-7789
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 5, 2019
- Expiration date
- September 27, 2028
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
Current bond
- Bond company
- RLI Ins Co
- Bond number
- LSM5034938
- Amount
- $15,000
- Effective date
- September 24, 2026
- Expiration date
- Until canceled
Bond history
- Bond company
- Platte River Ins Co
- Bond number
- A270085547
- Amount
- $15,000
- Effective date
- September 24, 2024
- Expiration date
- Not on record
- Cancellation date
- September 24, 2026
- Bond company
- Contractors Bonding & Insurance Co
- Bond number
- SL9660
- Amount
- $30,000
- Effective date
- July 1, 2024
- Expiration date
- Not on record
- Cancellation date
- April 10, 2025
- Bond company
- Contractors Bonding & Insurance Co
- Bond number
- SL9660
- Amount
- $6,000
- Effective date
- March 5, 2019
- Expiration date
- September 26, 2024
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- United Financial Casualty Comp
- Policy number
- PGR973225977
- Coverage amount
- $1,000,000
- Effective date
- March 10, 2026
- Expiration date
- March 10, 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.
- BLYZNIUK, YURIISince March 5, 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: PROSTO CONSTRUCTION in City Of Spokane Vall. 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 PROSTI*810DE).