C-20 — page 3 of 17
4,849 clear company licenses whose first classification is “C-20 — Warm-Air Heating, Ventilating and Air-Conditioning”.
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| Place | Contractor | License | Main classification | Expires |
|---|---|---|---|---|
| Menifee, CA | ALL AMERICAN HEATING & AIR INC | 1069816 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| San Jose, CA | ALL AMERICAN HEATING AND COOLING INC | 1159333 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| La Verne, CA | ALL AMERICAN HVAC INC | 1058904 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| El Dorado Hills, CA | ALL AMERICAN MECHANICAL | 1001975 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Las Vegas, NV | ALL AMERICAN MECHANICAL SILVER STATE COMMERICAL REFRIGERATION LLC | 1002025 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Los Banos, CA | ALL AMERICAN PLUMBING HEATING & AIR INC | 840958 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Sylmar, CA | ALL AMERICAN SOLUTION HEATING & AIR INC | 1110736 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Sunnyvale, CA | ALL APPLIANCE & HVAC SERVICE INC | 977789 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Bakersfield, CA | ALL BRAND AIR INC | 1047206 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Cerritos, CA | ALL CITY HEATING AIR & PLUMBING | 825443 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Oceanside, CA | ALL CLIMATE HEATING & AIR INC | 988693 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Antelope, CA | ALL CLIMATE SOLUTIONS INC | 1088526 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Granada Hills, CA | ALL COMFORT HVAC INC | 1091087 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Ventura, CA | ALL COUNTY AIR CONDITIONING & HEATING INC | 1087685 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Palm Desert, CA | ALL DAY HEATING & COOLING INC | 1008011 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Oceanside, CA | ALL DAY HEATING AND AIR CONDITIONING LLC | 1048737 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Palm Desert, CA | ALL DESERT PLUMBING HEATING AND AIR CONDITIONING LLC | 811885 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Agoura Hills, CA | ALL FOUR SEASONS AIR CONDITIONING & HEATING INC | 788533 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Lancaster, CA | ALL HEART HEATING COOLING AND PLUMBING D S MECHANICAL INC | 918467 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Lancaster, CA | ALL HEATING AND AIR CO | 1097597 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| West Sacramento, CA | ALL HVAC SERVICES INC | 1098442 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Tracy, CA | ALL HVAC SYSTEMS LLC | 1126393 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Riverside, CA | ALL IN 1 HEATING AND AIR CONDITIONING INC | 1015729 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Redwood Valley, CA | ALL IN HEATING AND COOLING LLC | 1082921 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| La Quinta, CA | ALL KNIGHT HEATING & AIR CONDITIONING INC | 771254 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Fresno, CA | ALL MECHANICAL SERVICES INC | 804268 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Riverside, CA | ALL PLUMBING & AIR SOLUTIONS ALL PLUMBING SOLUTIONS | 1008227 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Folsom, CA | ALL PRO HEATING AND AIR CONDITIONING INC | 712597 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Rancho Cucamonga, CA | ALL PRO REFRIGERATION INC | 1038018 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| North Hollywood, CA | ALL REGION INC | 1037768 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Janesville, CA | ALL SEASON HEATING & AIR | 1030669 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Palm Desert, CA | ALL SEASONS AIR CONDITIONING PLUMBING AND HEATING USER FRIENDLY HOME SERVICES LLC | 1082238 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Bakersfield, CA | ALL SEASONS AIR SOLUTIONS INC | 1087627 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Huntington Beach, CA | ALL SEASONS HEATING & AIR CONDITIONING NASH ENTERPRISES INC | 653620 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2026 |
| Chico, CA | ALL SEASONS HEATING & AIR CONDITIONING SUMMERS & ARCHAMBAULT INC | 909575 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| South Lake Tahoe, CA | ALL SEASONS PLUMBING | 410706 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| San Bernardino, CA | ALL SEASONS PREMIUM HEATING & AIR | 1117091 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Porter Ranch, CA | ALL STAR AC INC | 650404 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Indio, CA | ALL STAR SERVICES COOLING & HEATING INC | 1078348 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Santa Clarita, CA | ALL SYSTEMS MECHANICAL | 1051527 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Escondido, CA | ALL TEMP MECHANICAL INC | 1109066 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Los Angeles, CA | ALL TEMP SYSTEMS INC | 984374 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Chatsworth, CA | ALL TEMPERATURES CONTROLLED INC | 658722 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| City Of Industry, CA | ALL TEMPERATURES INC | 1085863 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Nipomo, CA | ALL THINGS MECHANICAL INC | 1093909 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Palm Desert, CA | ALL VALLEY AIR | 859431 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Tulare, CA | ALL VALLEY HEATING & COOLING INC | 1154673 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Covina, CA | ALL VALLEY HEATING AND AIR INC | 1127428 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Woodland Hills, CA | ALL VALLEY REFRIGERATION INC | 968515 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Vacaville, CA | ALL WEATHER HEATING & AIR CONDITIONING INC | 949796 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Goleta, CA | ALL WEATHER INC | 782033 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| North Hollywood, CA | ALL WEATHER MASTERS INC | 1094428 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Madera, CA | ALL ZONE HEATING & COOLING CO | 1077551 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Milpitas, CA | ALL-PRO HEATING & COOLING ALL-PRO HEAT PUMP SOLUTIONS INC | 1142736 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Mammoth Lakes, CA | ALL-TEMP HEATING & AIR CONDITIONING J & C EIGHTY-THREE ENTERPRISES INC | 987076 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Anaheim, CA | ALLEGIANCE 76 HEATING AND AIR CONDITIONING LLC | 1156380 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Victorville, CA | ALLEGIANCE AIR & MECHANICAL INC | 1155934 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Santee, CA | ALLEGIANCE HEATING & AIR CONDITIONING INC | 548700 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Bakersfield, CA | ALLIANCE FABRICATION & HVAC, INC | 1077838 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Santa Ana, CA | ALLIANCE HEATING AND AIR CONDITIONING INC | 840838 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Reseda, CA | ALLIANCE HVAC INC | 1008553 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| San Rafael, CA | ALLIED HEATING & AIR CONDITIONING CO INC | 453261 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Baldwin Park, CA | ALLIED MECHANICAL AIR SYSTEMS INC | 602765 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Sparks, NV | ALLIED MECHANICAL NEVADA LLC | 1122201 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Corona, CA | ALLISON AIR CONDITIONING AND HEATING INC | 545500 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| La Habra, CA | ALLPRO MECHANICAL CONTRACTOR INC | 1106077 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Walnut, CA | ALLSTAR HEATING & AIR CONDITIONING INC | 969939 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Buellton, CA | ALLSTAR HEATING AND AIR CONDITIONING POOR H AND COMPANY INC | 608469 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Kahului, HI | ALLTEMP CA HOLDINGS LLC | 1148370 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Diamond Bar, CA | ALLWAYZ HEATING & AIR CONDITIONING INC | 1097372 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Beaumont, CA | ALMIGHTY COMFORT | 1160796 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Redondo Beach, CA | ALOHA AIR CONDITIONING AND HEATING INC | 1105978 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Meadow Vista, CA | ALOHA HEATING AND COOLING | 738967 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Playa Vista, CA | ALPHA HEATING & AIR CONDITIONING INC | 711227 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Madera, CA | ALPHA HEATING & COOLING INC | 1130148 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Mission Viejo, CA | ALPHA HVAC REPAIR AND INSTALLATION ALPHA REPAIR INC | 1106714 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Fair Oaks, CA | ALPHA MECHANICAL ALPHA MECHANICAL SYSTEMS INC | 967727 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Shingle Springs, CA | ALPINE HEATING AND AIR CONDITIONING INC | 851552 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Irvine, CA | ALPINE HEATING AND COOLING INC | 1129457 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Livermore, CA | ALPINE MECHANICAL SERVICE COMPANY INC | 553780 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Montebello, CA | ALPINE MFG GROUP INCORPORATED | 1008567 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| La Verne, CA | ALPINE PLUMBING AND ROOTER INC | 1041244 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Cypress, CA | ALPINE REF INC | 1077305 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Nipomo, CA | ALPINE REFRIGERATION HEATING & COOLING K & J MECHANICAL INC | 860043 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Anaheim, CA | ALPS AIR CONDITIONING & HEATING INC | 667953 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Sacramento, CA | ALT AC | 1117946 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Chico, CA | ALTERNATIVE HEATING & AIR | 947007 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| San Carlos, CA | ALTERNATIVE HEATING AND AIR CONDITIONING SOLUTIONS INC | 967878 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Montebello, CA | ALTURAS HEATING VENTILATION & AIR CONDITIONING ALTURAS INC | 1022352 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Oroville, CA | ALVIS HEATING & AIR CONDITIONING INC | 779257 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Perris, CA | ALWAYS ON-POINT HEATING & AIR CONDITIONING | 1129680 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Carlsbad, CA | AM HEATING & AIR INC | 1077225 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Roseville, CA | AMAC HVAC INC | 1046727 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Lake Elsinore, CA | AMBER AIR CONDITIONING INC | 621742 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Alpine, CA | AMBIENT AIR CONTROL SYSTEMS | 840355 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Discovery Bay, CA | AMBIENT AIR INC | 789422 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Hawthorne, CA | AMBIENT AIR LLC | 951041 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Sacramento, CA | AMBIENT AIR SOLUTIONS INC | 1116178 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| La Puente, CA | AMBIENT COOLING SERVICES INC | 1041110 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Oakland, CA | AMBIENT EXPERTS HVAC INTERNATIONAL ENERGY RESOURCES LLC | 1049324 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Livermore, CA | AMBIENT HEATING AND AIR AMBIENT TEMPERATURE CONTROL INC | 837170 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Fremont, CA | AME MECHANICAL INC | 973132 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Glendora, CA | AMEDURI HEATING & AIR CONDITIONING INC | 1032139 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Chula Vista, CA | AMERI - MEX PLUMBING INC | 691102 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Loma Linda, CA | AMERICA'S AIR CONDITIONING & HEATING INC | 1148149 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Chino Hills, CA | AMERICA'S CLIMATE HEATING & AIR CONDITIONING INC | 1160026 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Whittier, CA | AMERICAN AIR ADVANCE INC | 1161531 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Anaheim, CA | AMERICAN AIR BALANCE CO LLC | 583562 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Perris, CA | AMERICAN AIR CONCEPTS INC | 1105192 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Corona, CA | AMERICAN AIR CONTROL LLC | 1158383 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| French Camp, CA | AMERICAN AIR INC | 955821 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Moreno Valley, CA | AMERICAN AIRFLOW HEATING & AIR INC | 1144383 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| North Hollywood, CA | AMERICAN BEST APPLIANCE | 838610 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Oxnard, CA | AMERICAN BUILDING COMFORT SERVICES INC | 888126 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Burbank, CA | AMERICAN CLEAN AIR & HEATING | 951542 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Yorba Linda, CA | AMERICAN COMFORT AIR INC | 1109499 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Lincoln, CA | AMERICAN COMFORT HEATING & AIR LLC | 1105497 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Palm Desert, CA | AMERICAN COOL HEAT AIR & COMMERCIAL REFRIGERATION INC | 1031858 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Riverside, CA | AMERICAN COOLING PLATINUM 1 INTERNATIONAL INC | 1120469 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Panorama City, CA | AMERICAN CROWN HEATING AND AIR LLC | 1160941 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Loomis, CA | AMERICAN ENERGY HOME PRO'S SIERRA NEVADA 24/7 INC | 1083187 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Simi Valley, CA | AMERICAN HEATING & A/C CORP | 1013426 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Santa Rosa, CA | AMERICAN HEATING & AIR LLC | 1092310 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Porter Ranch, CA | AMERICAN HVAC DESIGN & CONSULTING INC | 1138773 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Tujunga, CA | AMERICAN MECHANICAL SCHIRMEISTER/VINCI INC | 726884 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Corona, CA | AMERICAN PLUMBING & LEAK DETECTION INC | 1058474 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Oceanside, CA | AMERICAN PLUMBING HEATING & AIR CONDITIONING AMERICAN PLUMBING & BACKFLOW PREVENTION INC | 869690 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Rancho Cordova, CA | AMERICAN PRECISION HEATING AND AIR | 1113125 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| San Leandro, CA | AMERICAN SHEET METAL & MECHANICAL ASM SQUARED INC | 1130767 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| North Hollywood, CA | AMERICAN SPRING HEATING & COOLING INC | 959492 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Northridge, CA | AMERICAN TEAM SERVICES | 779328 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| San Ysidro, CA | AMERICAN TITAN HEATING & AIR INC | 1150630 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Panorama City, CA | AMERICAN WE CAN TRUST AIR CONDITIONING AND HEATING | 1157753 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Rosemead, CA | AMERICAS AIR CORP | 1100921 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| San Jose, CA | AMERICOOL COMFORT | 1149725 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Rowland Heights, CA | AMERIPRO AIR | 1135483 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Santa Maria, CA | AMIGO AIR INC | 1116878 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Winchester, CA | AMIGO MECHANICAL INC | 1137584 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Chatsworth, CA | AMIR HVAC | 1064352 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Glendale, CA | AMK HEATING AND COOLING | 1127885 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Woodland Hills, CA | AMO AIR INC | 962653 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Downey, CA | AMOK HEATING AND AIR CONDITIONING INC | 1087362 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Knightsen, CA | AMORES MECHANICAL INC | 1116926 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Corona, CA | AMP AIR LLC | 1077409 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Manteca, CA | AMRON MECHANICAL INC | 873471 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Irvine, CA | AMTECH HEATING & AIR INC | 1003704 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Oxnard, CA | ANACAPA HEATING & AIR INC | 993882 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Placentia, CA | ANAHEIM AIR LLC | 1109245 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Anaheim, CA | ANAHEIM REFRIGERATION INC | 578942 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Carpinteria, CA | ANCHOR HEATING & AIR CONDITIONING INC | 793477 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Pleasant Hill, CA | ANCHOR HEATING & COOLING INC | 829395 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Anderson, CA | ANDERSON HEATING AND COOLING | 956439 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Port Hueneme, CA | ANDERSON REFRIGERATION INC | 633627 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| San Diego, CA | ANDRADE COOLING AND HEATING ANDRADE SOLUTIONS INC | 1147575 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Yuba City, CA | ANDY'S HEATING AND AIR CONDITIONING CO INC | 396740 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Visalia, CA | ANDY'S HVAC INC | 950507 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Armona, CA | ANGEL AIR INNOVATIONS INC | 1140568 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Fontana, CA | ANGEL'S AIR INC | 1001168 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Simi Valley, CA | ANGELES MECHANICAL INC | 1037577 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Stockton, CA | ANGKOR HEATING AIR CONDITIONING & REFRIGERATION | 962008 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| South San Francisco, CA | ANNUZZI HEATING AND COOLING INC | 742916 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Sacramento, CA | ANTELOPE HEATING & AIR INC | 1084051 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Yorba Linda, CA | ANTHONY'S AIR CONDITIONING AND HEATING INC | 931551 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Murrieta, CA | ANTHONY'S HEATING & AIR CONDITIONING INC | 809188 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Murrieta, CA | ANY DEGREE REFRIGERATION HEATING & AIR INC | 1124164 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Clovis, CA | ANYTIME HEATING AND COOLING INC | 1050907 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Walnut, CA | AOLUS HVAC | 1159822 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Gilroy, CA | APCOR MECHANICAL | 1145214 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Walnut Creek, CA | APEX AIR | 1123268 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Phoenix, AZ | APEX CO APEX REFRIGERATION & BOILER CO | 891480 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Irvine, CA | APEX COMMERCIAL MAINTENANCE INC | 1110591 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Sun City, CA | APEX COMMERCIAL SERVICES INC | 854317 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Redding, CA | APEX HEATING AND AIR CONDITIONING INC | 1122085 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Stevenson Ranch, CA | APEX MECHANICAL CONTRACTING | 1124154 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| San Diego, CA | APEX MECHANICAL SYSTEMS INC | 831345 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Clayton, CA | APODACA MECHANICAL APODACA MECHANICAL & CONSULTING INC | 765801 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| San Leandro, CA | APPLE HEATING & AIR INC | 698079 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Los Angeles, CA | APPLETREE CORPORATION THE | 660549 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Bakersfield, CA | APPLIANCE CLINIC HEATING & AIR CONDITIONING | 1063626 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Bakersfield, CA | APPLIANCE PROS ALL-PRO AIR INC | 1033855 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Sherman Oaks, CA | APPLIANCE SOLUTIONS INC | 854352 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Fullerton, CA | APPLIED AIR CONDITIONING INC | 910358 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| West Covina, CA | APPLIED MECHANICAL APPLIED MECHANICAL ENGINEERING INC | 777230 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Escondido, CA | APPLIED MECHANICAL SOLUTIONS INC | 976865 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Long Beach, CA | AQUA WEST AIR CONDITIONING & HEATING INC | 829336 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Santa Clara, CA | AQUINAS HVAC INC | 1042033 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Bloomington, CA | AR COOLING AND HEATING LLC | 1052898 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Roseville, CA | ARC HEATING AND AIR CONDITIONING | 1107203 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Calexico, CA | ARCTIC AIR CONDITIONING & HEATING INC | 714495 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Hanford, CA | ARCTIC AIR INC | 1015211 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| San Diego, CA | ARCTIC AIRFLOW HEATING & AIR CONDITIONING INC | 1100944 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Lancaster, CA | ARCTIC HEATING & AIR ARCTIC AIR HEATING COOLING PLUMBING & ELECTRICAL LLC | 1143446 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Hawthorne, CA | ARCTIC HEATING & AIR INC | 762720 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| San Jose, CA | ARCTIC HVAC REPAIR | 1087257 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Concord, CA | ARCTIC REFRIGERATION INC | 322738 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Fowler, CA | ARCTIC SPARK CONTROLS LLC | 1151190 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Santa Clarita, CA | ARG AIR - CONDITIONING INC | 1107425 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Inglewood, CA | ARGYLL PLUMBING INC | 990148 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Anaheim, CA | ARIA'S AIR CONDITIONING INC | 1114429 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Van Nuys, CA | ARIANNA AC INC | 1064593 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Canyon Lake, CA | ARIAS MECHANICAL CORPORATION | 779450 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Clayton, CA | ARIEL HVAC SOLUTIONS INC | 1085951 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Pacheco, CA | ARISTON HEATING AND COOLING INC | 1026958 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| St Gilbert, AZ | ARIZONA POWER AIR LLC | 1154530 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Glendale, CA | ARO AC SYSTEM | 1091444 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Los Angeles, CA | AROUND THE CLOCK HEATING & A/C AROUND THE CLOCK HEATING A/C & REFRIGERATION INC | 650364 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Compton, CA | ARR AIR CONDITIONING INC | 433373 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Kingsburg, CA | ARROW MECHANICAL INC | 382099 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Twin Peaks, CA | ARROWHEAD AIR INC | 1092456 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Memphis, TN | ARS ARS AMERICAN RESIDENTIAL SERVICES OF CALIFORNIA INC | 791820 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| San Dimas, CA | ARSENAL HVAC INC | 1107476 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Glendale, CA | ART AIR CONDITIONING AND HEATING SERVICES | 969947 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Fresno, CA | ART DOUGLAS PLUMBING HEATING & AIR CONDITIONING ART DOUGLAS PLUMBING INC | 699348 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Santa Barbara, CA | ART GROSSMANN & SONS LLC | 919167 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Phelan, CA | ART OF AIR INC | 1143248 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Pleasanton, CA | ART OF COMFORT ECO TECH SOLUTIONS LLC | 977736 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Fresno, CA | ART'S REFRIGERATION SERVICE INC | 650678 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Bakersfield, CA | ARTHUR ALLEN AIR INC | 987240 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Hayward, CA | ARTISAN AIR HEATING COOLING INC | 1018534 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Oceanside, CA | ARTISAN SHEET METAL CO OF OCEANSIDE INC | 960556 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Antelope, CA | ARTYCLIMATE INC | 1134561 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Monrovia, CA | ARYCO H V A C | 673436 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Elverta, CA | ASAMOAH MECHANICAL LLC | 1103966 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| West Hills, CA | ASAP A/C | 1141368 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| San Leandro, CA | ASAP HEATING AND AIR LLC | 725589 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Rancho Cucamonga, CA | ASC MECHANICAL INC | 1144103 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Lompoc, CA | ASCEND HEATING AND AIR CORP | 1159085 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Gardnerville, NV | ASCEND HEATING AND AIR LLC | 1135114 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| San Diego, CA | ASCEND PLUMBING INC | 1066861 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Yucaipa, CA | ASCENT AIR CONDITIONING & HEATING INC | 1036374 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Danville, CA | ASCENT CONSERVE INC | 1147057 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Danville, CA | ASCENT INC | 1069809 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Crestline, CA | ASCENTIA ENGINEERING SERVICES INC | 821160 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Gilroy, CA | ASCO SERVICE INC | 778556 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Glendale, CA | ASH PURIFACATION HEATING & AIR CONDITIONING | 1095340 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Antioch, CA | ASM MECHANICAL SERVICES | 1051854 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Agoura Hills, CA | ASP HEATING & AIR CONDITIONING ASP ENGINEERING INC | 1083961 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Escondido, CA | ASSOCIATE MECHANICAL CONTRACTORS INC | 741000 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Anaheim, CA | ASSOCIATED HEATING & AIR INC | 608210 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| San Francisco, CA | ASSOCIATED HEATING OF SAN FRANCISCO INC | 1001526 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Salinas, CA | ASSOCIATED SERVICES HEATING SOLAR AIR INC | 792784 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Palm Desert, CA | ASSURED HEATING & AIR CONDITIONING SERVICES LLC | 1069937 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Lincoln, CA | ASTRO AIR DESIGN INC | 783688 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| San Jose, CA | ASTRO HEATING INC | 1132436 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Eastvale, CA | ATARA MECHANICAL INC | 1126598 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2026 |
| El Dorado Hills, CA | ATC SERVICE INC | 524622 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Diamond Bar, CA | ATLANTIC AIR CONDITIONING INC | 613226 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Elk Grove, CA | ATLANTIC H V A C INC | 844417 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Pittsburg, CA | ATLANTIS H V A C SERVICE | 992458 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Modesto, CA | ATLANTIS HEATING LLC | 748050 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Oakland, CA | ATLAS HEATING & AIR-CONDITIONING CO YOUR WARM FRIEND INC | 489501 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| South San Francisco, CA | ATLAS HEATING & VENTILATING CO TUCK AIRE HEATING & AIR CONDITIONING CORPORATION | 856293 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| San Diego, CA | ATLAS HVAC INC | 955327 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| San Diego, CA | ATLAS MECHANICAL INC | 622960 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Memphis, TN | ATLAS TRILLO ARS AMERICAN RESIDENTIAL SERVICES OF CALIFORNIA INC | 742039 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Glendale, CA | ATZ REFRIGERATION AND AIR CONDITIONING INC | 1002872 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Los Angeles, CA | AURORA HVAC INC | 1099257 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Rocklin, CA | AUSTIN HEAT & AIR AUSTIN SHEET METAL WORKS INC | 482282 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Vacaville, CA | AUSTIN'S AIR CONDITIONING AND HEATING INC | 996875 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Tempe, AZ | AUTHORITY HVAC CONSOLIDATED MAINTENANCE SOLUTIONS LLC | 984528 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Corona, CA | AUTHORITY PLUMBING HEATING AND AIR C&C SERVICE GROUP INC | 1117311 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Lincoln, CA | AUTOMATED CONTROL INC | 908191 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| San Jose, CA | AUTOMATED SOLUTIONS GROUP INC | 979330 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Orange, CA | AUTUMN AIR INC | 1057685 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Irvine, CA | AVANESIAN MECHANICAL SERVICES INC | 1113755 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Brentwood, CA | AVANT HVAC INC | 1079499 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Los Angeles, CA | AVM HVAC CONTRACTORS INC | 1155340 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Pomona, CA | AWC HVAC AND PLUMBING SERVICES INC AWC HVAC SERVICES INC | 1057988 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Livermore, CA | AWESOME HEATING AND AIR CONDITIONING INC | 813172 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| San Jose, CA | AXIS MECHANICAL INC | 974024 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| West Covina, CA | AYMAN IBRAHIM HVAC CONTRACTOR TRUST HEATING AND AIR CONDITIONING INC | 1152164 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Visalia, CA | AYON HEATING AND AIR CONDITIONING INC | 1082553 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Huntington Beach, CA | AYRSMITH INC | 1133850 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Hollister, CA | AZTEC HEATING AND AIR INC | 1075509 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Stockton, CA | B & B HEATING & AIR CONDITIONING INC | 868418 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Yuma, AZ | B & H REFRIGERATION COMPANY | 292776 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Los Angeles, CA | B & M AIR AND HEATING INC | 1002632 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Costa Mesa, CA | B & P SERVICES INC | 594563 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Northridge, CA | B AIR CONDITIONING AND SERVICES INC | 987404 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Corona, CA | B D M FABRICATION & HVAC | 1001399 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Los Angeles, CA | B D S SHEETMETAL & AIRCONDITIONING INC | 467778 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Chino, CA | B H AC & MECHANICAL CORP | 1157567 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Woodland, CA | B J'S HEATING & AIR CONDITIONING INC | 280981 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Yorba Linda, CA | B P W HEATING AND COOLING INC | 1091367 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Reno, NV | B R E MECHANICAL BROWN & READ ENGINEERING INC | 959909 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Sylmar, CA | B R MECHANICAL INC | 987439 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Ramona, CA | B SQUARED HEATING AND AIR | 1125510 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Lakeside, CA | B&B MECHANICAL INC | 1001006 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Glendora, CA | B-P AIR INC | 631883 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Littlerock, CA | B.M.A HVAC INC | 1114804 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Bay Point, CA | B/E HEATING AND COOLING INC | 1133288 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Gonzales, CA | BACKCHARGE HVAC LLC | 1099391 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Long Beach, CA | BACKFLOW APPARATUS & VALVE | 382548 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Rialto, CA | BACS AC SERVICES | 1122557 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Grass Valley, CA | BAEHR HEATING AND AIR INC | 1063364 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Redwood City, CA | BAEZ HEATING & COOLING INC | 1021193 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Rohnert Park, CA | BAIER HEATING AND AIR CONDITIONING INC | 1001504 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Victorville, CA | BAJA AIR TECH LLC | 1148970 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Winchester, CA | BAKER AIR INC | 1120875 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Lodi, CA | BAKER'S HEATING AND AIR CONDITIONING INC | 305775 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
Alphabetical order — this site ranks no one. Company licenses with a clear status in the CSLB file of October 1, 2026. Sole owners are not on this site; for today's status and complaints, use the CSLB's Instant License Check. How to read this.