HVAC Technician License Requirements in California
| Licensing Authority | Contractors State License Board (CSLB) |
| License Type | C-20 - HVAC |
| Experience Required | 4 years of journeyman-level HVAC experience within the last 10 years |
| Education Substitute | Accredited degree substitutes up to 3 years |
| Exam Required | Yes — Law & Business + C-20 HVAC Trade |
| Bond Required | Yes — $25,000 |
| Insurance | General liability: recommended. Workers comp: required |
| Continuing Education | Not required |
| Processing Time | 6-12 weeks |
Fee Breakdown
| Application Fee | $450 |
| Initial License Fee | $200 |
| Fingerprinting | $49 |
| Est. Initial Total | $699 |
Renewal: $450 every 2 years
Exam Requirements
Law & Business
115 questions3.5 hoursPass: 72%
C-20 HVAC Trade
100 questions3.5 hoursPass: 72%
HVAC systemsRefrigerationSafetyEstimating
Exam provider: PSI
License Reciprocity
This state has reciprocity agreements with 4 states. You may be able to skip the trade exam if you hold a valid license from one of these states.
arizonaTrade exam waived if CA license active 5+ years
louisianaTrade exam waived if CA license active 5+ years
nevadaTrade exam waived if CA license active 5+ years
north carolinaTrade exam waived if CA license active 5+ years
Notes
- 2026 change: Workers comp now mandatory for all C-20 holders, including sole proprietors
Frequently Asked Questions
Do I need a hvac technician license in California?
Yes, California requires a statewide hvac technician license through the Contractors State License Board.
How much does a hvac technician license cost in California?
The estimated initial cost is $699, including application, exam, and license fees.
Data last verified: 2026-04-02 | Source: CSLB