License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
WC exempt
No employees — exempt from requirement
Clean record
No complaints or disciplinary actions
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HAMMER ENGINEERING LLC
- License Number
- 1110818
- State
- California
- Status
- active
- Business Type
- Limited Liability
- Address
- P O BOX 271 WINDSOR, CA, 95492 Sonoma County
- Phone
- (707) 494 4763
License Dates
Issued
10/02/2023
Expires
07/31/2026
Expires in 4 months — verify renewal before long contracts
Reissued
07/24/2024
CSLB Last Updated
10/17/2025
License Classifications
Personnel & Officers
HAMMER MATTHEW BLAINE
Responsible Managing Manager
Contractor Bond
Amount: $25,000
Company: AMERICAN CONTRACTORS INDEMNITY COMPANY
Bond #100874388
Effective: 07/24/2024
Workers' Compensation
Owner/officer with no employees — exempt from WC requirement
CSLB designation: Exempt
Wage Bond
Amount: $100,000
Company: AMERICAN CONTRACTORS INDEMNITY COMPANY
Complaints & Disciplinary History
This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.
Verify this record on the official state licensing board
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California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.
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