Washington contractor
MASTER INSULATION & SRVCS LLC
Registered in Washington for 16 years
- License number
- MASTEIS914QB
- UBI
- 602965398
- Trade
- General contractor(all general contractor contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · GENERAL
- City
- MOUNT VERNON, WA(all contractors in Mount Vernon)
- Phone
- (360) 333-7995
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
- November 2, 2009
- Expiration date
- November 2, 2027
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
Current bond
- Bond company
- Western Surety Co
- Bond number
- 16039906
- Amount
- $30,000
- Effective date
- October 20, 2024
- Expiration date
- Until canceled
Bond history
- Bond company
- Western Surety Co
- Bond number
- 16039906
- Amount
- $12,000
- Effective date
- October 20, 2009
- Expiration date
- October 20, 2024
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- Obsidian Specialty Insurance C
- Policy number
- PTC-GL-000002080-03
- Coverage amount
- $1,000,000
- Effective date
- October 20, 2025
- Expiration date
- October 20, 2026
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.
- LOZANO, SERGIO ALVAREZSince November 2, 2009
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: MASTER INSULATION SRVCS in MOUNT VERNON. 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 MASTEIS914QB).