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May 29, 2026
What Is a C-20 License and Why Should Every OC HVAC Contractor Have One?
Choosing an HVAC contractor in Orange County isn’t just about price. It means making sure the technician is qualified, trained, and accountable. In California, that qualification is the C-20 HVAC contractor license. Without a C-20 license, a contractor cannot legally install, repair, or modify your HVAC system. This leads to failed inspections, voided warranties, and... Read more »
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