Licensed Heating & Air Conditioning (C-20) contractors in California
The California Contractors State License Board (CSLB) lists 8,930 California contractors classified C-20 (Heating & Air Conditioning (C-20)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of July 3, 2026.
Showing 6,961–7,020 of 8,930 contractors
- Active · clearRoss Air Conditioning INCRiverside, CA · CSLB #949880 · as of July 3, 2026
- Active · clearRoss HVAC ServiceRohnert Park, CA · CSLB #1149641 · as of July 3, 2026
- Active · clearAlfred RostomyanGlendale, CA · CSLB #1095629 · as of July 3, 2026
- Active · clearRoterts Appl RepairStockton, CA · CSLB #542874 · as of July 3, 2026
- Active · clearRound Tuit Heating And AirGranite Bay, CA · CSLB #1117850 · as of July 3, 2026
- Active · clearRowland Air INCSylmar, CA · CSLB #920387 · as of July 3, 2026
- Active · clearRowley Heating And AirAlta, CA · CSLB #1045982 · as of July 3, 2026
- Active · clearRoyal Breeze INCSacramento, CA · CSLB #856850 · as of July 3, 2026
- Active · clearRoyal California AirBakersfield, CA · CSLB #1090668 · as of July 3, 2026
- Active · clearRoyal Comfort A/c & HeatingRiverside, CA · CSLB #882862 · as of July 3, 2026
- Active · clearRoyale Air Heating And Air ConditioningBrentwood, CA · CSLB #1025922 · as of July 3, 2026
- Active · clearRoyal Flush Air ConditioningFillmore, CA · CSLB #1127846 · as of July 3, 2026
- Active · clearRoyal Heating And AirLos Angeles, CA · CSLB #1157356 · as of July 3, 2026
- Active · clearRoyalty Heating & Air INCRoseville, CA · CSLB #1112463 · as of July 3, 2026
- Active · clearRoyalty Heating And Air ConditioningMurrieta, CA · CSLB #1109929 · as of July 3, 2026
- Active · clearRoy Mechanical Services IncorporatedSebastopol, CA · CSLB #876217 · as of July 3, 2026
- Active · clearRPH & H Enterprises INCRedding, CA · CSLB #682248 · as of July 3, 2026
- Active · clearRPM Heating & AirEl Cajon, CA · CSLB #1078785 · as of July 3, 2026
- Active · clearRPM Socal LLCTrabuco Canyon, CA · CSLB #1091110 · as of July 3, 2026
- Active · clearR Powell MechanicalOakland, CA · CSLB #1139432 · as of July 3, 2026
- Active · clearR & R Air ConditioningClovis, CA · CSLB #951590 · as of July 3, 2026
- Active · clearR & R EnterpriseNewcastle, CA · CSLB #690090 · as of July 3, 2026
- Active · clearRR Heating & Air ConditioningSantee, CA · CSLB #811845 · as of July 3, 2026
- Active · clearR&R Heating & Air Conditioning INCRedding, CA · CSLB #1000768 · as of July 3, 2026
- Active · clearR R Heating And Air ConditioningCastaic, CA · CSLB #923053 · as of July 3, 2026
- Active · clearR & R Heating And Air INCVan Nuys, CA · CSLB #1047306 · as of July 3, 2026
- Active · clearRR HVAC INCSan Diego, CA · CSLB #1020173 · as of July 3, 2026
- Active · clearRR HVAC ServicesArcadia, CA · CSLB #1149872 · as of July 3, 2026
- Active · clearR & R MechanicalStockton, CA · CSLB #996195 · as of July 3, 2026
- Active · clearRS Air Conditioning & HeatingGlendora, CA · CSLB #966380 · as of July 3, 2026
- Active · clearR Santerelli HVACShingle Springs, CA · CSLB #1150484 · as of July 3, 2026
- Active · clearR S C Mechanical INCClinton Township, CA · CSLB #1050870 · as of July 3, 2026
- Active · clearR S GMoreno Valley, CA · CSLB #1027717 · as of July 3, 2026
- Active · clearR S Heating And CoolingClovis, CA · CSLB #1020375 · as of July 3, 2026
- Active · clearR & S Heating And Sheet Metal INCMonterey, CA · CSLB #770707 · as of July 3, 2026
- Active · clearRsi HVAC LLCSan Diego, CA · CSLB #1153760 · as of July 3, 2026
- Active · clearRS Mechanical Heating & Air INCModesto, CA · CSLB #1039812 · as of July 3, 2026
- Active · clearRSM MechanicalRiverside, CA · CSLB #987306 · as of July 3, 2026
- Active · clearRSM MechanicalSan Diego, CA · CSLB #1129352 · as of July 3, 2026
- Active · clearRTC Heating And Air ConditioningRiverside, CA · CSLB #1095272 · as of July 3, 2026
- Active · clearR T D MechanicalBelmont, CA · CSLB #979427 · as of July 3, 2026
- Active · clearRT Enterprises INCSan Bernardino, CA · CSLB #663020 · as of July 3, 2026
- Active · clearR T Heating & CoolingFowler, CA · CSLB #1102173 · as of July 3, 2026
- Active · clearRT Olson Plumbing, Heating And Air Conditioning LLCCorona, CA · CSLB #997337 · as of July 3, 2026
- Active · clearRuane Heating & Air Conditioning COLancaster, CA · CSLB #584115 · as of July 3, 2026
- Active · clearRuane Mechanical INCLancaster, CA · CSLB #1029879 · as of July 3, 2026
- Active · clearRuben Heating & Air Conditioning INCCanyon Country, CA · CSLB #1146255 · as of July 3, 2026
- Active · clearRuben's Air Conditioning Heating & Ventilation ServicesGlendale, CA · CSLB #737808 · as of July 3, 2026
- Active · clearRudy's Air Conditioning And Heating INCBakersfield, CA · CSLB #725031 · as of July 3, 2026
- Active · clearRuiz AirStockton, CA · CSLB #1112571 · as of July 3, 2026
- Active · clearRuiz Heating And Air ConditioningEscondido, CA · CSLB #851070 · as of July 3, 2026
- Active · clearRunning Springs Heating & AirLakeport, CA · CSLB #706322 · as of July 3, 2026
- Active · clearRush Air MechanicalSan Mateo, CA · CSLB #1010774 · as of July 3, 2026
- Active · clearRush MechanicalSacramento, CA · CSLB #441882 · as of July 3, 2026
- Active · clearRuslan GazizovSan Jose, CA · CSLB #1154007 · as of July 3, 2026
- Active · clearRussell Air Conditioning INCDesert Hot Springs, CA · CSLB #960094 · as of July 3, 2026
- Active · clearRussell Heating & Air Conditioning INCTracy, CA · CSLB #983173 · as of July 3, 2026
- Active · clearRussell's Heating & Air ConditioningYucaipa, CA · CSLB #719570 · as of July 3, 2026
- Active · clearRusso's Heating & Air Conditioning CompanyStockton, CA · CSLB #747167 · as of July 3, 2026
- Active · clearRusth Heating & AirManhattan Beach, CA · CSLB #699281 · as of July 3, 2026
Data sourced from the California Contractors State License Board (CSLB), current as of July 3, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.