Licensed Heating & Air Conditioning (C-20) contractors in Berkeley, CA

The California Contractors State License Board (CSLB) lists 4 Heating & Air Conditioning (C-20) contractors in Berkeley, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 6, 2026.

4 contractors

1. 3rdgen Home Services DBA 3rdgen Heating And Cooling

   Berkeley, CA · CSLB #1086898 · as of October 6, 2026
   Active · clear
2. Aarvaks Heating & Air Conditioning

   Berkeley, CA · CSLB #1146520 · as of October 6, 2026
   Active · clear
3. Om Heating & Air Conditioning INC

   Berkeley, CA · CSLB #919475 · as of October 6, 2026
   Active · clear
4. Owen Krebs Grimsich

   Berkeley, CA · CSLB #1162189 · as of October 6, 2026
   Active · clear

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Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.