C-20 — page 17 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 |
|---|---|---|---|---|
| Los Angeles, CA | WITTLER YOUNG CO INC | 191455 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Chatsworth, CA | WOLF AIR INC | 1154534 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Placentia, CA | WOLFE BROS HEATING AND AIR INC | 1063493 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Woodland, CA | WOODLAND HEATING & AIR CONDITIONING INC | 876003 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Los Angeles, CA | WOORI COOL SMART AIR CONTROL SYSTEM INC | 1089852 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Fullerton, CA | WOORI COOL HVAC INC | 1083086 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Descanso, CA | WORLAND MECHANICAL CO | 1157982 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Saugus, CA | WORLD APPLIANCES MARKAMBI INC | 938931 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Santa Barbara, CA | WORLD CLASS AIR INC | 1058570 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Fountain Valley, CA | WORLD H V A C SERVICE INC | 1055435 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Oceanside, CA | WR ROBBINS COMPANY CHAPMAN AIR SYSTEMS INC | 890971 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Hollister, CA | WRIGHT BROS WELDING & SHEET METAL INC | 393679 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| San Diego, CA | WRIGHTS HEATING AND AIR | 767590 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Santa Clarita, CA | WY&G INC | 1044922 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Fresno, CA | X I DYNAMICS INC | 971170 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Lafayette, CA | XCEL HEATING AND AIR CONDITIONING INC | 1107541 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Bakersfield, CA | XCEPTIONAL HEATING & AIR GALLARDO AIR CONDITIONING AND HEATING LLC | 1000230 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Fowler, CA | XPRESS AIR INC | 1134699 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Northridge, CA | XR AIR CONDITIONING & HEATING INC | 1146181 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Oak Hills, CA | XTREME AIR TECHNOLOGIES INC | 878051 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Temecula, CA | XTREME HEATING AND AIR CONDITIONING BORN 4 INVESTING INTERNATIONAL INC | 1146297 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Irvine, CA | Y & D HEAT & AIR INC | 1044872 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2026 |
| Orange, CA | YAEGER SERVICES INC | 903595 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Westlake Village, CA | YANTZER BROTHERS HEATING AND AIR INC | 989963 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Los Angeles, CA | YBOA HVAC MECHANICAL INC | 1113851 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Redlands, CA | YEAR ROUND HEATING & AIR CONDITIONING LLC | 1051175 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Yorba Linda, CA | YORBA LINDA AIR CONDITIONING INC | 1122870 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Lompoc, CA | YOUNG AIR INC | 949207 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Orange, CA | YOUR HEATING AND AC GUY | 1128905 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Glendale, CA | YOUR SEASON INC | 1152988 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Sheridan, CA | YOUR TEAM HEATING AND AIR | 1053326 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Yucaipa, CA | YUCAIPA VALLEY MECHANICAL LLC | 1144164 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Eastvale, CA | YUSONX INC | 1111157 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| San Francisco, CA | Z H MECHANICAL INC | 998449 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Napa, CA | Z S HEATING AND AIR INC | 1050971 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| La Verne, CA | ZACH TAYLOR HEATING AND AIR LLC | 1131483 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Merced, CA | ZACS AIR SYSTEMS | 1080249 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Montclair, CA | ZAFI AIR CONDITIONING AND CONSULTING INC | 1089147 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| San Rafael, CA | ZAPATA'S HEATING AND AIR INC | 1026275 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Marina, CA | ZENDA HEATING & SHEET METAL INC | 800456 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Burbank, CA | ZENON HVAC INC | 1158575 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Northridge, CA | ZEPHYR HEATING & AIR LLC | 958450 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Redlands, CA | ZERO TO 100 HEATING & AC INC | 1148981 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Bellflower, CA | ZIM'S INTEGRATED MECHANICAL SERVICES INC | 905513 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Canyon Country, CA | ZION CUSTOM AIR INC | 940765 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Moreno Valley, CA | ZION HEATING & COOLING INC | 1136433 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Van Nuys, CA | ZODIAC HEATING & AIR CONDITIONING INC | 722952 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| National City, CA | ZRO MECHANICAL INC | 1104873 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Diamond Bar, CA | ZY HVAC EQUIPMENT SERVICES ZY EQUIPMENT SERVICES INC | 1133374 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 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.