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 6,781–6,840 of 8,930 contractors

Restart HVAC
Mountain View, CA · CSLB #1090166 · as of July 3, 2026
Active · clear
Restaurant Technical Services
Campbell, CA · CSLB #524949 · as of July 3, 2026
Active · clear
Retes Mechanical
Stockton, CA · CSLB #971593 · as of July 3, 2026
Active · clear
Jim Retherford Mechanical INC
Valley Center, CA · CSLB #1074058 · as of July 3, 2026
Active · clear
Reverse Heating & Air Conditioning INC
Corona, CA · CSLB #1152115 · as of July 3, 2026
Active · clear
Revival Heating & Air LLC
Gardena, CA · CSLB #1105578 · as of July 3, 2026
Active · clear
Revive Air
Brea, CA · CSLB #1144319 · as of July 3, 2026
Active · clear
Revive Heating And Air Conditioning
Menifee, CA · CSLB #1146947 · as of July 3, 2026
Active · clear
Revive Mechanical INC
Redding, CA · CSLB #1093739 · as of July 3, 2026
Active · clear
Revolution Heating & Air INC
Mission Hills, CA · CSLB #1110227 · as of July 3, 2026
Active · clear
R E X Plumbing Heating & A/c
San Pedro, CA · CSLB #909577 · as of July 3, 2026
Active · clear
H Reyes CO
San Gabriel, CA · CSLB #441663 · as of July 3, 2026
Active · clear
Reyes Heating And Air
Woodland, CA · CSLB #917041 · as of July 3, 2026
Active · clear
Reyes Heating And Air Conditioning
Los Angeles, CA · CSLB #934037 · as of July 3, 2026
Active · clear
Reyes Heating And Air INC
Novato, CA · CSLB #1057236 · as of July 3, 2026
Active · clear
Reyes HVAC Systems
Arleta, CA · CSLB #1142510 · as of July 3, 2026
Active · clear
Reynolds Heating And A/c
Oroville, CA · CSLB #1090939 · as of July 3, 2026
Active · clear
Rey's Air Solution INC
West Sacramento, CA · CSLB #1048722 · as of July 3, 2026
Active · clear
R F Mechanical Services
Moorpark, CA · CSLB #876249 · as of July 3, 2026
Active · clear
R & F Refrigeration INC
Murrieta, CA · CSLB #1079760 · as of July 3, 2026
Active · clear
R G Air Solutions
Moreno Valley, CA · CSLB #1145907 · as of July 3, 2026
Active · clear
R G Heating & Air Conditioning CO
Los Angeles, CA · CSLB #974858 · as of July 3, 2026
Active · clear
R G Heating And Cooling INC
Chula Vista, CA · CSLB #901349 · as of July 3, 2026
Active · clear
RGN Heating & Cooling
San Jose, CA · CSLB #1135243 · as of July 3, 2026
Active · clear
Rhinehart Heating And Air LLC
Placerville, CA · CSLB #1130398 · as of July 3, 2026
Active · clear
Rhino Air
Burbank, CA · CSLB #1142997 · as of July 3, 2026
Active · clear
Rhino Heating & Air Conditioning INC
Castroville, CA · CSLB #1134947 · as of July 3, 2026
Active · clear
Rhino Mechanical INC
Upland, CA · CSLB #551799 · as of July 3, 2026
Active · clear
RH Mechanical LLC
Livermore, CA · CSLB #1155766 · as of July 3, 2026
Active · clear
Rianda Air INC
Hollister, CA · CSLB #699804 · as of July 3, 2026
Active · clear
Ric Chavarrie Heating And Air Conditioning
Lakewood, CA · CSLB #958601 · as of July 3, 2026
Active · clear
Rice Heating & Air Conditioning INC
Grover Beach, CA · CSLB #237636 · as of July 3, 2026
Active · clear
Richard's Heating & Air Repair INC
Livermore, CA · CSLB #883458 · as of July 3, 2026
Active · clear
Richards HVAC
San Mateo, CA · CSLB #433455 · as of July 3, 2026
Active · clear
Richardson Mechanical
Escondido, CA · CSLB #1074366 · as of July 3, 2026
Active · clear
Richardson Technologies INC
Temecula, CA · CSLB #872618 · as of July 3, 2026
Active · clear
Rich HVAC
Newhall, CA · CSLB #1082104 · as of July 3, 2026
Active · clear
Aaron Rickard
Blue Ridge, CA · CSLB #801288 · as of July 3, 2026
Active · clear
Allen Heating & Air
Hemet, CA · CSLB #779192 · as of July 3, 2026
Active · clear
Rick's Heating & Air Conditioning INC
Goleta, CA · CSLB #455907 · as of July 3, 2026
Active · clear
Rick's Heating And Air
Laguna Niguel, CA · CSLB #556408 · as of July 3, 2026
Active · clear
Ricks Heating And Air A Partnership
Apple Valley, CA · CSLB #1013070 · as of July 3, 2026
Active · clear
Rick's Heating And Air Conditioning
Pleasanton, CA · CSLB #700486 · as of July 3, 2026
Active · clear
Ricks Mechanical
Lakeside, CA · CSLB #1142983 · as of July 3, 2026
Active · clear
Allright Enterprises INC DBA Rick's Refrigeration
Granite Bay, CA · CSLB #538702 · as of July 3, 2026
Active · clear
Rickys HVAC Services
Chino, CA · CSLB #1124573 · as of July 3, 2026
Active · clear
Rico Heating And Cooling
Torrance, CA · CSLB #1079010 · as of July 3, 2026
Active · clear
Ricos Heating And Air INC
Elverta, CA · CSLB #1020985 · as of July 3, 2026
Active · clear
Riddle Heating & Air
Escondido, CA · CSLB #980458 · as of July 3, 2026
Active · clear
Riddle Heating & Air INC
Pomona, CA · CSLB #1028243 · as of July 3, 2026
Active · clear
Ridgeback Mechanical
Sonoma, CA · CSLB #1115184 · as of July 3, 2026
Active · clear
Dennis A Riesche
Vacaville, CA · CSLB #941837 · as of July 3, 2026
Active · clear
Right Air Flow INC
Tustin, CA · CSLB #1045730 · as of July 3, 2026
Active · clear
Right Away Air Conditioning INC
Palm Desert, CA · CSLB #967263 · as of July 3, 2026
Active · clear
Right Choice Air Conditioning And Plumbing
Indio, CA · CSLB #1042289 · as of July 3, 2026
Active · clear
Right Climate INC
Corona, CA · CSLB #1008299 · as of July 3, 2026
Active · clear
Rightemp Home Services INC
Temecula, CA · CSLB #1084677 · as of July 3, 2026
Active · clear
Righteous Heating And Cooling
Murrieta, CA · CSLB #1020132 · as of July 3, 2026
Active · clear
Rightime Home Services
Memphis, CA · CSLB #765074 · as of July 3, 2026
Active · clear
Right On Time Heating And Cooling
Clearlake, CA · CSLB #1066745 · 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.