HAMMER'S HEATING AND AIR CONDITIONING
License
- Status
- CLEAR
- First issued
- June 4, 1993
- Expires
- June 30, 2027
- Entity
- Sole Owner
- Address of record
- 280 CRESTVIEW AVENUE, Martinez, CA 94553
- Phone of record
- (925) 229 2779
Contractor bond
- Surety
- WESTERN SURETY COMPANY
- Bond number
- 67526345
- Amount
- $25,000
- Effective
- October 29, 2025
Workers’ compensation
- Carrier
- WCF NATIONAL INSURANCE COMPANY
- Policy number
- 4151814
- Effective
- May 13, 2026
- Expires
- May 13, 2027
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 13 licensed warm-air heating, ventilating and air-conditioning contractors in Martinez.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| HAMMER MICHAEL KEITH | Sole Owner | June 4, 1993 | Current |
| HAMMER MICHAEL KEITH | Sole Owner | March 22, 2000 | January 1, 2004 |
Verified status badge
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.