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 6,661–6,720 of 8,930 contractors

Scott Ray
San Jose, CA · CSLB #1111667 · as of July 3, 2026
Active · clear
Ray's Heating & Air Conditioning
Gardena, CA · CSLB #668026 · as of July 3, 2026
Active · clear
Rayside Heating & Air
Chino Hills, CA · CSLB #1148035 · as of July 3, 2026
Active · clear
Ray's Plumbing
La Puente, CA · CSLB #990798 · as of July 3, 2026
Active · clear
Ray's Service INC
Santa Clarita, CA · CSLB #559495 · as of July 3, 2026
Active · clear
Ray Tech Air
Glendale, CA · CSLB #991538 · as of July 3, 2026
Active · clear
Fernando Razuri
Chatsworth, CA · CSLB #1081128 · as of July 3, 2026
Active · clear
R B Air
Durham, CA · CSLB #1000300 · as of July 3, 2026
Active · clear
R & B Heating & Air Conditioning
New Almaden, CA · CSLB #789287 · as of July 3, 2026
Active · clear
R B HVAC INC
Stockton, CA · CSLB #1094161 · as of July 3, 2026
Active · clear
RB Mechanical Services
Rancho Cucamonga, CA · CSLB #1126247 · as of July 3, 2026
Active · clear
R C Air
San Jose, CA · CSLB #711045 · as of July 3, 2026
Active · clear
RC Air Conditioning & Heating
Escondido, CA · CSLB #820731 · as of July 3, 2026
Active · clear
R C Air Conditioning & Heating INC
Corona, CA · CSLB #657924 · as of July 3, 2026
Active · clear
RC Air LLC
Rancho Cucamonga, CA · CSLB #445508 · as of July 3, 2026
Active · clear
R C Air Solutions
Folsom, CA · CSLB #849018 · as of July 3, 2026
Active · clear
Rca Mechanical
Rancho Cucamonga, CA · CSLB #1134658 · as of July 3, 2026
Active · clear
Rcas HVAC
Baldwin Park, CA · CSLB #976933 · as of July 3, 2026
Active · clear
R & C Heating & Air INC
Ramona, CA · CSLB #927108 · as of July 3, 2026
Active · clear
R & C Heating And Air
Roseville, CA · CSLB #1123341 · as of July 3, 2026
Active · clear
RC Heating And Cooling
Palmdale, CA · CSLB #1142491 · as of July 3, 2026
Active · clear
R&C Heating And Cooling Service
Santa Monica, CA · CSLB #1101808 · as of July 3, 2026
Active · clear
RC Mechanical
Lomita, CA · CSLB #991245 · as of July 3, 2026
Active · clear
R C Mechanical INC
Redwood City, CA · CSLB #634921 · as of July 3, 2026
Active · clear
R C S
San Dimas, CA · CSLB #919205 · as of July 3, 2026
Active · clear
RCS Mechanical INC
Long Beach, CA · CSLB #981509 · as of July 3, 2026
Active · clear
R C'S Mechanical Services
Fremont, CA · CSLB #724430 · as of July 3, 2026
Active · clear
R&D Air INC
Irvine, CA · CSLB #1142574 · as of July 3, 2026
Active · clear
RD Hydrojet Plumbing & Drain INC
Murrieta, CA · CSLB #1076642 · as of July 3, 2026
Active · clear
RDK Mechanical LLC
Lancaster, CA · CSLB #1059333 · as of July 3, 2026
Active · clear
R D L Heating & Cooling
Yucaipa, CA · CSLB #832559 · as of July 3, 2026
Active · clear
RDM Air INC
Rancho Cucamonga, CA · CSLB #1078895 · as of July 3, 2026
Active · clear
Rdoneit LLC
Long Beach, CA · CSLB #1005864 · as of July 3, 2026
Active · clear
Rodney Overstreet Plumbing Heating And Ac DBA R D Smith Heating
Glendora, CA · CSLB #1015727 · as of July 3, 2026
Active · clear
Robert L Dias DBA Rd's Service Contractor
Concord, CA · CSLB #523223 · as of July 3, 2026
Active · clear
Reaco Heating & Air Conditioning INC
Gilroy, CA · CSLB #715426 · as of July 3, 2026
Active · clear
Ready Air INC
Ceres, CA · CSLB #1148075 · as of July 3, 2026
Active · clear
Re Air INC
Glendora, CA · CSLB #595054 · as of July 3, 2026
Active · clear
Real Air HVAC
Castaic, CA · CSLB #1082388 · as of July 3, 2026
Active · clear
Real Mechanical Solutions LLC
Newbury Park, CA · CSLB #1124533 · as of July 3, 2026
Active · clear
Real Plumbing And Heating INC
Clearlake Oaks, CA · CSLB #838680 · as of July 3, 2026
Active · clear
Real Tech Heating & Ac
Newhall, CA · CSLB #1134340 · as of July 3, 2026
Active · clear
Real Time Bros Heating & Air Conditioning INC
Tustin, CA · CSLB #1119816 · as of July 3, 2026
Active · clear
Ream's Mechanical HVAC Service
San Jose, CA · CSLB #1101104 · as of July 3, 2026
Active · clear
Ream's Mechanical HVAC Service
San Jose, CA · CSLB #1157168 · as of July 3, 2026
Active · clear
Rebel Air Services INC
Sacramento, CA · CSLB #1131212 · as of July 3, 2026
Active · clear
Rebel Mechanical Heating & Air LLC
Lakeside, CA · CSLB #1083493 · as of July 3, 2026
Active · clear
Recendiz Mechanical Air Conditioning And Heating
Desert Hot Springs, CA · CSLB #1113982 · as of July 3, 2026
Active · clear
Red Bluff Heating And Air Conditioning
Red Bluff, CA · CSLB #1008961 · as of July 3, 2026
Active · clear
Redding Comfort Heating & Air INC
Redding, CA · CSLB #772491 · as of July 3, 2026
Active · clear
Redeemed Air
Fairfield, CA · CSLB #798887 · as of July 3, 2026
Active · clear
Red Feather Mechanical
San Jose, CA · CSLB #1132403 · as of July 3, 2026
Active · clear
Red Fox Heating & Cooling
Oakland, CA · CSLB #1095334 · as of July 3, 2026
Active · clear
Redhawk Mechanical INC
Temecula, CA · CSLB #792522 · as of July 3, 2026
Active · clear
Red Lilly Plumbing INC
Los Angeles, CA · CSLB #218270 · as of July 3, 2026
Active · clear
Redline Air INC
Chino, CA · CSLB #827716 · as of July 3, 2026
Active · clear
Redline Air Systems
El Dorado Hills, CA · CSLB #909316 · as of July 3, 2026
Active · clear
Redline Mechanical INC
Buena Park, CA · CSLB #580411 · as of July 3, 2026
Active · clear
Red Mountain Heating And Air INC
Novato, CA · CSLB #1076741 · as of July 3, 2026
Active · clear
Red Rock HVAC Service
Canyon Country, CA · CSLB #1103341 · as of July 3, 2026
Active · clear

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.