DUFF MECHANICAL SERVICES
License #1109379·Sole Owner·AGUANGA, Riverside County
Summary
DUFF MECHANICAL SERVICES operating as a sole owner is licensed in California under CSLB number 1109379. The license was first issued in 2023, putting the business at 3 years on the active CSLB roster. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with NORTH RIVER INSURANCE COMPANY (THE) and active workers' compensation coverage from CLEAR SPRING PROPERTY AND CASUALTY COMPANY. The business is based in AGUANGA, in Riverside County, California.
Business Information
License Details & Classifications
- License Number
- 1109379
- Issued
- Aug 28, 2023
- Status
- CLEAR
- Expires
- Aug 31, 2027
- Entity
- Sole Owner
Classifications
Financial & Insurance Coverage
Contractor Bond
- Surety
- NORTH RIVER INSURANCE COMPANY (THE)
- Bond Number
- 04CF645918
- Effective
- Aug 15, 2025
- Status
- Active
Workers' Compensation
- Coverage
- Workers' Compensation Insurance
- Carrier
- CLEAR SPRING PROPERTY AND CASUALTY COMPANY
- Policy Number
- CWC03597800
- Effective
- Sep 30, 2025
- Expires
- Sep 9, 2026
License StatusActive
Contractor BondOn file
Workers' CompensationActive
Activity Timeline
- License issuedAug 28, 2023
- Bond activeAug 15, 2025
- WC coverage startsSep 30, 2025
- WC expiresSep 9, 2026
- License expiresAug 31, 2027