C-20 — page 11 of 17
4,849 clear company licenses whose first classification is “C-20 — Warm-Air Heating, Ventilating and Air-Conditioning”.
1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17
| Place | Contractor | License | Main classification | Expires |
|---|---|---|---|---|
| Murrieta, CA | LOW COST HEATING AND AIR CONDITIONING INC | 1001077 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Desert Hot Springs, CA | LOW DESERT HEATING & COOLING REFRIGERATION INC | 1150246 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| San Jose, CA | LOWE'S AIR DUCT CLEANING BREKMAR INC | 1062991 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Hanford, CA | LOWREY'S HEATING AND AIR CONDITIONING INC | 1124496 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Chatsworth, CA | LP QUALITY AIR LP MANAGEMENT AND HOLDING LLC | 1079917 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Northridge, CA | LPP A/C AND HEATING SERVICE | 1059001 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Santa Clarita, CA | LRG MECHANICAL INC | 1062830 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Glendale, CA | LS AIR CONDITIONING AND HEATING INC | 1046736 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Needles, CA | LUAS HVAC/APPLIANCE REPAIR | 908423 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Orange, CA | LUIS & RICS HEATING & AIR CONDITIONING INC | 967944 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Simi Valley, CA | LUNA ELEMENT HEATING & AIR INC | 1093225 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Marina, CA | LUNA HVAC | 1138265 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Desert Hot Springs, CA | LUNA'S AIR CONDITIONING & HEATING | 1159046 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Canoga Park, CA | LUNAR AIR SERVICES | 1123097 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Santa Rosa, CA | LUNT HEATING & AIR CONDITIONING INC | 822428 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Norco, CA | LUTES AIR CONDITIONING CORP | 1156503 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Norwalk, CA | LUX AIR HEATING & COOLING LLC | 1122672 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Tarzana, CA | LUX AIR HVAC LUX AIR ENGINEERING INC | 1011572 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Santa Rosa, CA | LUX METALS INC | 395294 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Corona, CA | LUXURIOUS HEATING AND AIR CONDITIONING INC | 1106174 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Granada Hills, CA | M & A HVAC INC | 1138985 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Fresno, CA | M & L PLUMBING CO INC | 224778 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Menifee, CA | M & M AIR CONDITIONING INC | 628341 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Concord, CA | M & S HVACR CONTRACTORS INC | 956647 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| San Diego, CA | M & S PLUMBING | 924845 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Indio, CA | M - TECH AIR CONDITIONING SERVICES INC | 1019044 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Riverside, CA | M B PLUMBING AIR CONDITIONING & HEATING INC | 713817 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| San Francisco, CA | M C L HEATING & AIR CONDITIONING INC | 989383 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Sonoma, CA | M C M MECHANICAL | 1106825 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Bishop, CA | M C R SERVICES INC | 914968 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Modesto, CA | M D SMITH HEATING & AIR CONDITIONING INC | 954959 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Inglewood, CA | M G AIR & COOLING INC | 1157104 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Escondido, CA | M H S HEATING & AIR CONDITIONING INC | 932029 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Winnetka, CA | M I B ASSOCIATES INC | 444221 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Beverly Hills, CA | M I S APPLIANCE INC | 756018 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Lancaster, CA | M J MECHANICAL HEATING AND AIR CONDITIONING INC | 950153 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| San Carlos, CA | M J MECHANICAL SERVICES INC | 853653 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Chatsworth, CA | M K HEATING AND AIR CONDITIONING INC | 956874 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| San Fernando, CA | M P C HEATING & AIR CONDITIONING INC | 852950 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Carmichael, CA | M S I KWICK MECHANICAL INC | 792414 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| San Luis Obispo, CA | M S M M INC | 999900 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Montebello, CA | M S MECHANICAL SERVICE INC | 899875 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Pomona, CA | M S RELIABLE HEATING AND COOLING INC | 1050276 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Petaluma, CA | M T B MCGOLDRICK ENTERPRISES INC | 762453 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Van Nuys, CA | M T E MECHANICAL INC | 707377 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Escondido, CA | M W MECHANICAL INC | 1002804 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Sunland, CA | M Z COOLING & HEATING INC | 1113163 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Livermore, CA | M&A MECHANICAL SERVICE LLC | 1141566 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Blythe, CA | M&M HEATING AND AIR CONDITIONING INC | 1075284 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Danville, CA | M-23 MECHANICAL SYSTEMS | 1083192 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Castro Valley, CA | M1 MECHANICAL CORP | 1129897 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Anaheim, CA | M3 MECHANICAL M3 HVAC INC | 786760 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| San Bernardino, CA | MAC'S AIRE SERVICE | 878306 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Ramona, CA | MACARTHUR MECHANICAL HAYLOFT SERVICES INC | 1036205 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Fontana, CA | MACAWSOME LLC | 988339 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Lancaster, CA | MACCO MECHANICAL | 1142464 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Oro Grande, CA | MACK'S AIR CONDITIONING AND HEATING SERVICES CORPORATION | 1043714 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Murrieta, CA | MACRO MECHANICAL INC | 968322 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Covina, CA | MAD MECHANICAL HVAC CORP | 1124816 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Santa Clara, CA | MADE SIMPLE HEATING & AIR INC | 1056274 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Anaheim, CA | MADISON AIR INC | 740225 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Colton, CA | MAGANA HEATING & AIR INC | 961871 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| San Francisco, CA | MAGIC PLUMBING HEATING & COOLING MAGIC PLUMBING | 698806 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Lake Elsinore, CA | MAGICS HEATING AND AIR LLC | 1041146 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Anaheim, CA | MAGNA PLUMBING | 629978 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Ontario, CA | MAGNISON AND MOEN INC | 264898 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Riverside, CA | MAGNOLIA HEATING & COOLING INC | 815323 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| San Bruno, CA | MAIN AIR INC | 1032704 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Moorpark, CA | MAINSTREAM HEATING & AIR INC | 501745 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| San Jose, CA | MAJESTIC HEATING AND AIR CONDITIONING | 1130634 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Modesto, CA | MAJESTIC MECHANICAL CORPORATION | 1161277 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Oceanside, CA | MAJOR LEAGUE COMFORT SYSTEMS AT YOUR SERVICE COMFORT SYSTEMS INC | 984731 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| La Puente, CA | MAKE IT HAPPEN AIR CONDITIONING CO | 1081433 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Valencia, CA | MAKE IT WORK AC SERVICE INC | 1124761 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Gilroy, CA | MALIBU HEATING & AIR CONDITIONING INC | 403858 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Los Angeles, CA | MAMMOTH AIR COMPANY | 1099812 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Indio, CA | MANNY VARGAS AIR CONDITIONING & HEATING INC | 859195 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Tracy, CA | MANNY'S HEATING AND AIR INC | 968946 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Fairfield, CA | MARASIGAN HEATING AND AIR | 1074318 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Thermal, CA | MARC AC SPECIALIZED CORP | 1137212 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Redwood City, CA | MARCUCCI HEATING AND AIR CONDITIONING INC | 856600 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Riverside, CA | MARIN AIR LLC | 1143178 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Fairfax, CA | MARIN HEATING AND AIR | 1074408 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| La Quinta, CA | MARIO'S AIR CONDITIONING INC | 881884 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Fresno, CA | MARIO'S COMFORT HEATING & COOLING INC | 1105761 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Fontana, CA | MARIOHVAC LLC | 1118363 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Woodland Hills, CA | MARION HEATING & AIR CONDITIONING INC | 775254 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Mission Hills, CA | MARK'S AIR CONDITIONING AND HEATING MUNOZ MECHANICAL INC | 949932 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Burlingame, CA | MARKET MECHANICAL HVACR D&J ASSOCIATES LLC | 1059312 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| El Cajon, CA | MARKS HEATING & AIR INC | 995729 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Yerington, NV | MARRACCINI PLUMBING HEATING COOLING & CONTROLS INC | 1120201 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| San Jose, CA | MARTCOR HEATING & AIR INC | 1152630 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Akron, OH | MARTIN C J HVAC COMPANY INCORPORATED THE K COMPANY INCORPORATED THE | 989846 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Nuevo, CA | MARTIN FAMILY HVAC INC | 1070394 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Anaheim, CA | MARTIN J INDOOR AIR QUALITY LLC | 998956 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Merced, CA | MARTINEZ HEATING & AIR CONDITIONING INC | 803946 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| San Jose, CA | MARTINICO AND SONS INC | 163059 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| La Puente, CA | MARTINS A/C | 1054089 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Truckee, CA | MARTIS VALLEY MECHANICAL INC | 964634 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| La Verne, CA | MARVEL AIR CONDITIONING & HEATING INC | 790684 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Antioch, CA | MAS SERVICE JB MECHANICAL INC | 498289 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Apple Valley, CA | MASCO & SON'S HEATING AND AIR CONDITIONING INC | 866785 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Alamo, CA | MASSONE MECHANICAL INC | 615532 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Moreno Valley, CA | MASTER AIR TECH | 1042024 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Ontario, CA | MASTER CHILL HEATING AND AIR | 1138989 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Chino, CA | MASTER CONDITIONING INC | 494352 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Moorpark, CA | MASTER COOLING CORP | 656552 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Fallbrook, CA | MASTER FLOW HEATING & AIR CONDITIONING INC | 942505 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| San Jose, CA | MASTER MAINTENANCE HOME SERVICES INC | 1132390 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Redlands, CA | MASTER TECH MECHANICAL INC | 739284 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Chino Hills, CA | MASTER WHITE AC INC | 1150374 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Menlo Park, CA | MATA HEATING AND AIR CONDITIONING LLC | 1153141 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Corona, CA | MATRIX HVAC INC | 1030168 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Roseville, CA | MATSON MECHANICAL INC | 1024061 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Lakeside, CA | MAV MECHANICAL INC | 1083329 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Escondido, CA | MAX AIR HVAC AEONIAN INC | 1091653 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Morgan Hill, CA | MAX AIRE HEATING & COOLING INC | 1108868 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Elverta, CA | MAX COMFORT SOLUTIONS INC | 1057009 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Newark, CA | MAX'S HVAC MAX'S HEATING AC & SHEET METAL | 251305 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Fresno, CA | MAXIMUM AIR | 824199 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Loomis, CA | MAXON MECHANICAL INC | 1035084 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Gilroy, CA | MAXSEAL LLC | 1128398 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2026 |
| Oxnard, CA | MAXX GRIP PLUMBING & SEWER SERVICE INC | 1113053 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| San Mateo, CA | MAYEN HVAC SERVICES | 978201 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Dana Point, CA | MAYO MECHANICAL INC | 472592 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Ceres, CA | MC HEATING & AIR CONDITIONING INC | 1140257 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Daly City, CA | MC MECHANICALS | 929991 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| El Cajon, CA | MCCLURE MECHANICAL SYSTEMS INC | 995204 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Temecula, CA | MCCOURT & SONS INC | 1054861 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Visalia, CA | MCGEE REFRIGERATION INC | 613002 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Mariposa, CA | MCGRADY & SONS HEATING AND COOLING INC | 1079657 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Irvine, CA | MCMASTER HEATING & AIR CONDITIONING INC | 726607 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Diamond Bar, CA | MCMASTER MECHANICAL | 879152 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Fontana, CA | MCMILLAN WATER TREATMENT INC | 844792 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Antioch, CA | MDB SAME DAY HVAC INC | 1057681 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| San Jose, CA | MDP HEATING & COOLING INC | 1103720 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Gardena, CA | MEADOWS MECHANICAL MEADOWS SHEET METAL AND AIR CONDITONING INC | 383620 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Escondido, CA | MECH ONE INC | 934023 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Hesperia, CA | MECHANICAL AIR CLIMATE CONTROL INC | 1054287 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Riverside, CA | MECHANICAL AIR CONTROL INC | 808525 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Fresno, CA | MECHANICAL AIR LLC | 969564 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Whittier, CA | MECHANICAL ALLIANCE INC | 884370 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| La Habra, CA | MECHANICAL GROUP S & R AIR CONDITIONING & HEATING LLC | 663552 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Cerritos, CA | MECHANICAL INNOVATIONS INC | 984952 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Temecula, CA | MECHANICAL PROS HEATING AND AIR CONDITIONING INC | 812400 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Stockton, CA | MECHANICAL SOLUTIONS COMPANY INC | 1124778 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Paramount, CA | MECHANICAL SPECIALTIES SOLUTIONS LLC | 1068795 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| San Diego, CA | MECHANICAL SYSTEM CONTRACTORS INC | 878844 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| La Habra, CA | MECHANICAL TECHNOLOGIES INC | 852317 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Orange, CA | MECHANICAL TECHNOLOGY SYSTEMS INC | 828672 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Glendale, CA | MECHMASTER HVAC | 1111253 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Burbank, CA | MEDIA CITY AC INC | 1142647 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Santa Rosa, CA | MEIER M & SONS HEATING & AIR CONDITIONING INC | 610649 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Dos Palos, CA | MEJIA MECHANICAL LLC | 1141630 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Hollister, CA | MEJIA SERVICES HEATING AND AIR CONDITIONING | 1102107 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Turlock, CA | MEL'S HEATING & AIR INC | 919419 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Livermore, CA | MELGAR & ASSOCIATES MECHANICAL INC | 1140422 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Santa Clara, CA | MELGAR MECHANICAL INC | 1073416 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Fresno, CA | MELTON SHEET METAL MELTON AIR CONDITIONING INC | 170713 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Thousand Palms, CA | MENDEZ AIR CONDITIONING & HEATING | 791437 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Hemet, CA | MENIFEE VALLEY AIR CONDITIONING INC | 765865 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Oak Run, CA | MENINI HEATING & AIR CONDITIONING INC | 777885 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Monterey Park, CA | MERCHANTS BUILDING MAINTENANCE COMPANY | 861937 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Brentwood, CA | MERCURY HEATING AND AIR CONDITIONING INC | 1040640 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Placentia, CA | MERICLE MECHANICAL INC | 776860 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| San Francisco, CA | MERINO INSTALLATION SERVICES LLC | 1161275 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| San Diego, CA | MERRICK & ASSOCIATES INC | 454270 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Nipomo, CA | MESA AIR HEATING / AIR CONDITIONING INC | 690241 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Santa Clara, CA | MESA3/MECHANICAL ENVIRONMENTAL SYSTEMS ANALYSIS AND ADJUSTMENT | 498292 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Folsom, CA | METHOD HVAC SERVICES INC | 1090807 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Irvine, CA | METRO COOLING & HEATING PROS LLC | 1158627 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Gilroy, CA | METRO MECHANICAL INC | 825697 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Pasadena, CA | METROPOLITAN HEATING & AIR CONDITIONING INC | 722516 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Irvine, CA | METROPOLITAN HEATING AND AIR CONDITIONING NASRAT INC | 767552 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Austin, TX | METZ AIR CONTROL LLC | 1142864 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Dunsmuir, CA | MEYER & SONS HEATING PLUMBING & A/C INC | 674874 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Highland, CA | MGC AIR HEATING & COOLING | 1143319 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Riverside, CA | MHC GROUP LLC | 1161839 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Riverside, CA | MI CLIMA AIR CONDITIONING AND HEATING INC | 1123655 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Ridgecrest, CA | MICHAEL'S CERTIFIED AIR INC | 969915 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Santa Ana, CA | MICK'S HEATING AIR CONDITIONING & PLUMBING INC | 593230 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 28, 2027 |
| Lakeside, CA | MICKSTER MECHANICAL HEATING & A/C MICKSTER SERVICES INC | 880072 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| San Luis Obispo, CA | MID COAST MECHANICAL INC | 615966 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Visalia, CA | MID-VALLEY MECHANICAL AIR CONDITIONING HEATING AND REFRIGERATION | 1066595 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Bakersfield, CA | MIDSTATE SHEETMETAL INC | 840189 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Reno, NV | MIDWEST HEATING LLC | 1145325 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Lancaster, CA | MIGUEL A / C | 1092427 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Oakland, CA | MIHAS HVAC INC | 1149214 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Tarzana, CA | MIKE'S REFRIGERATION M&S REFRIGERATION INC | 1141846 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Indio, CA | MIKEY'S A/C & HEATING | 975690 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Petaluma, CA | MILANO MECHANICAL INC | 797754 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Chula Vista, CA | MILLENIAL AIR CONDITIONING | 1103124 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| West Hills, CA | MILLENIUM AIR INC | 905863 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Cool, CA | MILLER AND COMPANY MECHANICAL SERVICES INC | 980001 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2026 |
| American Canyon, CA | MILLER SIGNS MILLER SIGNS AND SHEET METAL INC | 524648 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Auburn, CA | MILLER'S HEATING AIR CONDITIONING & SHEET METAL INC | 330604 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Cathedral City, CA | MILLERS HEATING AND COOLING | 1023944 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Riverside, CA | MILLS AIR CONDITIONING & HEATING INC | 444238 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Blythe, CA | MILLS BROTHERS CLIMATE CONTROL LLC | 1080110 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Middletown, CA | MILNE MECHANICAL CORPORATION | 886497 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Ukiah, CA | MINDFUL CLIMATE LLC | 1109521 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Tulare, CA | MINGUELA MIGUEL INC | 1074649 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Citrus Heights, CA | MINI SPLIT GUYS LLC | 1117875 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Brea, CA | MIRACOOL INC | 982506 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Desert Hot Springs, CA | MIRAGE AIR CONDITIONING LLC | 1084344 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Brea, CA | MISSION AIRE CORPORATION | 497956 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2026 |
| Mission Viejo, CA | MISSION MECHANICAL SERVICES INC | 735483 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| San Clemente, CA | MISSION PLUMBING & HEATING INC | 950079 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Anaheim, CA | MISSION SHEET METAL INC | 374693 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Woodland Hills, CA | MISTER COOL CALIFORNIA INC | 1143117 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Los Angeles, CA | MISTER FREZE H V A C | 1058399 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Agoura, CA | MITCHELL HEATING AND AIR CONDITIONING INC | 558157 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Paradise, CA | MITCHELL JOHN HEATING & COOLING INC | 730953 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Costa Mesa, CA | MITCHELL JW HEATING AND AIR CONDITIONING LLC | 1108012 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Indio, CA | MITCHELL'S PAUL AIR CARE INC | 1066533 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Perris, CA | MIXED AIR CONDITIONED SYSTEM | 1077344 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Auburn, CA | MIZE GUYS HEATING & COOLING EMPIRE MECHANICAL SERVICES INC | 973836 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Adelanto, CA | MJ HEATING & COOLING INC | 1153104 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Bakersfield, CA | MJ MECHANICAL ENTERPRISE INC | 1055692 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Clovis, CA | MK MECHANICAL INC | 1078122 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Fresno, CA | MLB MECHANICAL INC | 1122984 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| San Juan Capistrano, CA | MO AIR MECHANICAL INC | 1042124 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Ukiah, CA | MOBLEY COMFORT SOLUTIONS HEATING & COOLING INC | 1138041 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| San Ramon, CA | MOD COMFORT SOLUTIONS HEATING AND AIR CONDITIONING | 1127091 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Sun Valley, CA | MODERN AIR CHILLING & HEATING INC | 1070641 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Merced, CA | MODERN AIR MECHANICAL | 569680 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Riverside, CA | MODERN COMFORT AND AIR INC | 1106235 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2027 |
| Redding, CA | MODERN COMFORT SOLUTIONS INC | 1048001 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Rosemead, CA | MODERN HEATING & AIR CONDITIONING INC | 923122 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Modesto, CA | MODERN HEATING / AIR CONDITIONING SERVICES INC | 985001 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2027 |
| Harbor City, CA | MODERN-AIR CONDITIONING COMPANY S F T INC | 472651 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Salida, CA | MODESTO REFRIGERATION INCORPORATED | 872227 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Whittier, CA | MODUAL A/C SYSTEMS INC | 466535 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Jacksonville Beach, FL | MOFFITT MECHANICAL LLC | 978745 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Bishop, CA | MOJAVE DESERT HEATING & COOLING INC | 573871 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2028 |
| Folsom, CA | MONARCA HVAC LLC | 1137542 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Lawndale, CA | MONDABAUGH MIKE A/C INC | 990089 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Los Angeles, CA | MOORE AIR INC | 973297 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Dublin, CA | MOORE MECHANICAL HEATING AND AIR CONDITIONING CASTLEWORKS HOME SERVICES COMPANY | 1085045 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| North Hollywood, CA | MOR AIR INC | 996969 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Canoga Park, CA | MORALES HEATING AND COOLING LLC | 1129311 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Modesto, CA | MORENO'S HEATING AND COOLING SERVICES INC | 936820 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Aug 31, 2027 |
| Santa Rosa, CA | MOREROCK REFRIGERATION SERVICES INC | 1104358 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| San Diego, CA | MOREY PLUMBING MOREY PLUMBING HEATING AND COOLING INC | 967435 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Sylmar, CA | MORFLOW AIR CONDITIONING INC | 488870 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| South Pasadena, CA | MORROW & HOLMAN PLUMBING INC | 321793 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| El Cajon, CA | MORSE MECHANICAL INC | 1126524 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| La Canada, CA | MOTION MECHANICAL | 1158755 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| La Verne, CA | MOTOZEN LLC | 1146498 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Rolling Hills Estates, CA | MOUNT AC MOUNT INC | 1151333 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Yucaipa, CA | MOUNTAIN AIR COMFORT | 1092470 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Yreka, CA | MOUNTAIN AIR HEATING COOLING & REFRIGERATION INC | 750134 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Los Angeles, CA | MOUNTAIN AIR QUALITY INC | 1058051 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Highland, CA | MOUNTAIN BREEZE HEATING & AIR CONDITIONING INC | 1016218 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Rohnert Park, CA | MOUNTAIN HVAC LLC | 1155061 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Westwood, CA | MOUNTAIN PRIDE MECHANICAL INC | 861011 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Commerce, CA | MOVEMENT ENERGY INC | 1111051 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2027 |
| Cameron Park, CA | MOXIE MECHANICAL INC | 1000511 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Winnetka, CA | MP ALL SEASONS HEATING AND COOLING INC | 1044048 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Long Beach, CA | MQC HEATING AND COOLING MECHANICAL INC | 1105074 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Santa Maria, CA | MR AIR INC | 1116941 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Feb 29, 2028 |
| Rosemead, CA | MR COOL AC INC | 1112536 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2027 |
| Temecula, CA | MR COOL GUY JBRINK INC | 1022424 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Oak View, CA | MR COOL HEATING & COOLING INC | 1129881 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Carlsbad, CA | MR COOL HVAC | 1130503 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| San Jose, CA | MR RELIABLE PLUMBING & HEATING | 1011988 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Indio, CA | MR STONE AIR CONDITIONING | 1110542 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Atascadero, CA | MR. PERRY'S HEATING & AIR LLC | 1113743 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Delano, CA | MRV SERVICE AIR INC | 870278 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Nov 30, 2026 |
| Graton, CA | MSBI FIRE N ICE HVAC | 1136756 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Granada Hills, CA | MSO ENTERPRISES INC | 977044 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Riverside, CA | MSP HEATING AND AIR LLC | 1038253 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Clovis, CA | MT COOLING & HEATING INC | 1096518 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| Reno, NV | MT ROSE HEATING & AIR CONDITIONING INC | 770238 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| Anaheim, CA | MTAC HEATING & AIR INC | 1135465 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| North Hills, CA | MTC HEATING & AIR CONDITIONING INC | 1039699 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Pasadena, CA | MULTI AIR SERVICE LLC | 1026812 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Sylmar, CA | MULTI MECHANICAL | 1124036 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jul 31, 2028 |
| San Fernando, CA | MULTI-AIR SERVICES INC | 1029529 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Vista, CA | MURPHY HEATING AND AIR CONDITIONING LLC | 1110511 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Escondido, CA | MURPHY MECHANICAL HVAC INC | 1034996 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2028 |
| Newark, CA | MUSIAL HEATING & AIR INC | 844028 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Sacramento, CA | MUVON LLC | 1142955 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Los Angeles, CA | MYD HVAC INC | 1109659 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2027 |
| Merced, CA | N & C HEATING AND AIR LLC | 1131364 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jan 31, 2027 |
| Winnetka, CA | N A G AIR CONDITIONING & HEATING SYSTEMS INC | 1025354 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2027 |
| Antioch, CA | N K HEATING & AIR CONDITIONING INC | 786063 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2028 |
| Canyon Country, CA | N P R HEATING AND AIR CONDITIONING CORPORATION | 999320 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2026 |
| Corona, CA | N2EC AIRCON AND HEATING CORPORATION | 1003714 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | May 31, 2027 |
| Cerritos, CA | NADINE REFRIGERATION LLC | 1156252 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Jun 30, 2028 |
| Fresno, CA | NAGARE QUALITY AIR CONDITIONING INC | 735518 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| Sunland, CA | NAHVAC INC | 1153586 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2028 |
| Fresno, CA | NALK AIR CONDITIONING AND HEATING INC | 497476 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Sep 30, 2028 |
| El Cajon, CA | NASH HEATING & AIR CONDITIONING | 1100901 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Siant Louis, MO | NATIONAL H V A C SERVICES NATIONAL DESIGN BUILD SERVICES LLC | 997859 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| West Hills, CA | NATURAL AIR SYSTEMS INC | 1049880 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 30, 2027 |
| El Monte, CA | NATURAL MAGE AIR INC | 1127839 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Oct 31, 2028 |
| Riverside, CA | NAVARRO'S BROTHERS HEATING & AIR CONDITIONING | 1151214 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Mar 31, 2028 |
| Laguna Hills, CA | NAVARRO'S HEATING & AIR CONDITIONING INC | 1012629 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Dec 31, 2027 |
| Harbor City, CA | NAY HEATING & AIR INC | 1135509 | C-20 — Warm-Air Heating, Ventilating and Air-Conditioning | Apr 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.