Licensed Heating & Air Conditioning (C-20) contractors in California

The California Contractors State License Board (CSLB) lists 8,936 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 October 8, 2026.

Showing 6,601–6,660 of 8,936 contractors

Ramsey Air
Hughson, CA · CSLB #983440 · as of October 8, 2026
Active · clear
Rancho Heating & Air Plumbing INC
Rancho Santa Margarita, CA · CSLB #1024860 · as of October 8, 2026
Active · clear
Rancho Plumbing Heating & Air
Upland, CA · CSLB #689936 · as of October 8, 2026
Active · clear
Rancho Valley Heating And Air
Rancho Cordova, CA · CSLB #1112010 · as of October 8, 2026
Active · clear
Rancho Viejo Air Conditioning & Heating
Lake Forest, CA · CSLB #745018 · as of October 8, 2026
Active · clear
Rand Aire Corporation
Studio City, CA · CSLB #635096 · as of October 8, 2026
Active · clear
Rand Aire Mechanical Contractors INC
Orange, CA · CSLB #693185 · as of October 8, 2026
Active · clear
R And B Heating And Air
Anderson, CA · CSLB #962514 · as of October 8, 2026
Active · clear
Randle Air Conditioning INC
San Marcos, CA · CSLB #782083 · as of October 8, 2026
Active · clear
Randy's Heating & Air
Sacramento, CA · CSLB #874390 · as of October 8, 2026
Active · clear
Rangel's HTG & A/c Serv
Sun Valley, CA · CSLB #1001761 · as of October 8, 2026
Active · clear
Ranger Thermal Solutions
Fontana, CA · CSLB #1161883 · as of October 8, 2026
Active · clear
Rantala Heating And Sheet Metal INC
Fort Bragg, CA · CSLB #827647 · as of October 8, 2026
Active · clear
Rapid Plumbing
Culver City, CA · CSLB #771663 · as of October 8, 2026
Active · clear
Rapid Response Heating And Air INC
North Hollywood, CA · CSLB #1147844 · as of October 8, 2026
Active · clear
Ra Refrigeration
Rialto, CA · CSLB #985145 · as of October 8, 2026
Active · clear
Rare Service Heating & Air Conditioning INC
Fresno, CA · CSLB #514869 · as of October 8, 2026
Active · clear
Zachary Rasmussen
Greenwood, CA · CSLB #1004310 · as of October 8, 2026
Active · clear
Rasp Heating & Air Conditioning
Menifee, CA · CSLB #1106230 · as of October 8, 2026
Active · clear
Rassac Air Systems
La Crescenta, CA · CSLB #716318 · as of October 8, 2026
Active · clear
Raven Heating & Air Conditioning INC
Novato, CA · CSLB #937102 · as of October 8, 2026
Active · clear
Rav Mechanical Corporation
Hayward, CA · CSLB #1073696 · as of October 8, 2026
Active · clear
Rayas Legacy Heating And Cooling
Fresno, CA · CSLB #1144506 · as of October 8, 2026
Active · clear
Raydiant Mechanical INC
Winchester, CA · CSLB #1148787 · as of October 8, 2026
Active · clear
Raymond Mechanical Services
Valley Springs, CA · CSLB #852830 · as of October 8, 2026
Active · clear
Raymond Sok
Fullerton, CA · CSLB #832377 · as of October 8, 2026
Active · clear
Raynard's Appliance Repairs
Richmond, CA · CSLB #816691 · as of October 8, 2026
Active · clear
Ray's Air Conditioning And Heating
Palm Desert, CA · CSLB #893120 · as of October 8, 2026
Active · clear
Scott Ray
San Jose, CA · CSLB #1111667 · as of October 8, 2026
Active · clear
Ray's Heating & Air Conditioning
Gardena, CA · CSLB #668026 · as of October 8, 2026
Active · clear
Rayside Heating & Air
Chino Hills, CA · CSLB #1148035 · as of October 8, 2026
Active · clear
Ray's Plumbing
La Puente, CA · CSLB #990798 · as of October 8, 2026
Active · clear
Ray's Service INC
Santa Clarita, CA · CSLB #559495 · as of October 8, 2026
Active · clear
Ray Tech Air
Glendale, CA · CSLB #991538 · as of October 8, 2026
Active · clear
Fernando Razuri
Chatsworth, CA · CSLB #1081128 · as of October 8, 2026
Active · clear
R B Air
Durham, CA · CSLB #1000300 · as of October 8, 2026
Active · clear
R & B Heating & Air Conditioning
New Almaden, CA · CSLB #789287 · as of October 8, 2026
Active · clear
R B HVAC INC
Stockton, CA · CSLB #1094161 · as of October 8, 2026
Active · clear
RB Mechanical Services
Rancho Cucamonga, CA · CSLB #1126247 · as of October 8, 2026
Active · clear
R C Air
San Jose, CA · CSLB #711045 · as of October 8, 2026
Active · clear
RC Air Conditioning & Heating
Escondido, CA · CSLB #820731 · as of October 8, 2026
Active · clear
R C Air Conditioning & Heating INC
Corona, CA · CSLB #657924 · as of October 8, 2026
Active · clear
RC Air LLC
Rancho Cucamonga, CA · CSLB #445508 · as of October 8, 2026
Active · clear
Rca Mechanical
Rancho Cucamonga, CA · CSLB #1134658 · as of October 8, 2026
Active · clear
Rcas HVAC
Baldwin Park, CA · CSLB #976933 · as of October 8, 2026
Active · clear
R C Heating
San Jose, CA · CSLB #969792 · as of October 8, 2026
Active · clear
R & C Heating & Air INC
Ramona, CA · CSLB #927108 · as of October 8, 2026
Active · clear
R & C Heating And Air
Roseville, CA · CSLB #1123341 · as of October 8, 2026
Active · clear
R&C Heating And Cooling Service
Santa Monica, CA · CSLB #1101808 · as of October 8, 2026
Active · clear
RC Mechanical
Lomita, CA · CSLB #991245 · as of October 8, 2026
Active · clear
R C S
San Dimas, CA · CSLB #919205 · as of October 8, 2026
Active · clear
RCS Mechanical INC
Long Beach, CA · CSLB #981509 · as of October 8, 2026
Active · clear
R C'S Mechanical Services
Fremont, CA · CSLB #724430 · as of October 8, 2026
Active · clear
R&D Air INC
Irvine, CA · CSLB #1142574 · as of October 8, 2026
Active · clear
RD Hydrojet Plumbing & Drain INC
Murrieta, CA · CSLB #1076642 · as of October 8, 2026
Active · clear
RDK Mechanical LLC
Lancaster, CA · CSLB #1059333 · as of October 8, 2026
Active · clear
R D L Heating & Cooling
Yucaipa, CA · CSLB #832559 · as of October 8, 2026
Active · clear
RDM Air INC
Rancho Cucamonga, CA · CSLB #1078895 · as of October 8, 2026
Active · clear
Rdoneit LLC
Long Beach, CA · CSLB #1005864 · as of October 8, 2026
Active · clear
Rodney Overstreet Plumbing Heating And Ac DBA R D Smith Heating
Glendora, CA · CSLB #1015727 · as of October 8, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 8, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.