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 5,041–5,100 of 8,936 contractors

Lasting Legacy Plumbing Heating And Air
Redlands, CA · CSLB #1082542 · as of October 8, 2026
Active · clear
Latim's Heating And Air Conditioning
Elk Grove, CA · CSLB #941896 · as of October 8, 2026
Active · clear
Latin Plumbing INC
Santa Ana, CA · CSLB #979940 · as of October 8, 2026
Active · clear
Lawrence Heating And Cooling
Three Rivers, CA · CSLB #1016642 · as of October 8, 2026
Active · clear
R W Lawson INC
Yucca Valley, CA · CSLB #711640 · as of October 8, 2026
Active · clear
La Xpress Air & Heating Services INC
Commerce, CA · CSLB #984230 · as of October 8, 2026
Active · clear
Lazaro Heating & Cooling
Norwalk, CA · CSLB #1049374 · as of October 8, 2026
Active · clear
L B Air Conditioning
Diamond Bar, CA · CSLB #1072480 · as of October 8, 2026
Active · clear
L C Heating & Air Conditioning
Los Banos, CA · CSLB #1087414 · as of October 8, 2026
Active · clear
L.C Heating And Air INC
Los Angeles, CA · CSLB #1073586 · as of October 8, 2026
Active · clear
LC Prime Air HVAC
West Covina, CA · CSLB #1151382 · as of October 8, 2026
Active · clear
LC Quality Heating & Air INC
Corona, CA · CSLB #1140415 · as of October 8, 2026
Active · clear
L&D Climate Control LLC
Rosemead, CA · CSLB #1140609 · as of October 8, 2026
Active · clear
Ldi Mechanical INC
Corona, CA · CSLB #784662 · as of October 8, 2026
Active · clear
Le0's Heating And Air Conditioning
West Covina, CA · CSLB #901132 · as of October 8, 2026
Active · clear
Leading Edge Air Conditioning
Cathedral City, CA · CSLB #602809 · as of October 8, 2026
Active · clear
Leal Pro - Mechanical H V A C INC
Anaheim, CA · CSLB #1061494 · as of October 8, 2026
Active · clear
Lebron Heating And Air INC
Canyon Country, CA · CSLB #1137314 · as of October 8, 2026
Active · clear
L E C Service
Torrance, CA · CSLB #382319 · as of October 8, 2026
Active · clear
Dao Le
Ontario, CA · CSLB #864673 · as of October 8, 2026
Active · clear
Ledesma Heating & Air
Petaluma, CA · CSLB #901153 · as of October 8, 2026
Active · clear
Chang Soo Lee
Los Angeles, CA · CSLB #986681 · as of October 8, 2026
Active · clear
Joon Lee
Los Angeles, CA · CSLB #1005378 · as of October 8, 2026
Active · clear
Lee's Heating & Air
Placerville, CA · CSLB #683482 · as of October 8, 2026
Active · clear
Lee's Heating And Air Conditioning CO
Stockton, CA · CSLB #456424 · as of October 8, 2026
Active · clear
Lee's Heating And Air Corp
Perris, CA · CSLB #498630 · as of October 8, 2026
Active · clear
Lee's Sheet Metal Heating & Cooling
Vallejo, CA · CSLB #600910 · as of October 8, 2026
Active · clear
Sukwon Lee
Campbell, CA · CSLB #1020965 · as of October 8, 2026
Active · clear
Leesung Heating & Air Condition
Buena Park, CA · CSLB #1062853 · as of October 8, 2026
Active · clear
Thomas Lee
North Hollywood, CA · CSLB #778536 · as of October 8, 2026
Active · clear
Yong Gun Lee
Moreno Valley, CA · CSLB #1120535 · as of October 8, 2026
Active · clear
Left Coast Air
Menifee, CA · CSLB #1012403 · as of October 8, 2026
Active · clear
Left Coast Heating And Air Conditioning
Livermore, CA · CSLB #1040611 · as of October 8, 2026
Active · clear
Left Coast Mechanical Heating & Air
San Jose, CA · CSLB #1092267 · as of October 8, 2026
Active · clear
Legacy A/c & Heating
Moreno Valley, CA · CSLB #1011507 · as of October 8, 2026
Active · clear
Legacy Air
Tulare, CA · CSLB #1150597 · as of October 8, 2026
Active · clear
Legacy Air Hvacr LLC
El Dorado Hills, CA · CSLB #1155634 · as of October 8, 2026
Active · clear
Legacy Heating & Air
Rohnert Park, CA · CSLB #1154703 · as of October 8, 2026
Active · clear
Legacy Heating & Air INC
North Hills, CA · CSLB #1042949 · as of October 8, 2026
Active · clear
Legend 72 Heating And Air
Sacramento, CA · CSLB #1092585 · as of October 8, 2026
Active · clear
Legendary Air Heating & Cooling
Hemet, CA · CSLB #1116121 · as of October 8, 2026
Active · clear
Legendary Mechanical Corporation
Malibu, CA · CSLB #1145437 · as of October 8, 2026
Active · clear
Legend Heating And Ac INC
Sacramento, CA · CSLB #1153738 · as of October 8, 2026
Active · clear
Legends Heating And Air Conditioning
Temecula, CA · CSLB #1122771 · as of October 8, 2026
Active · clear
Legit Air
La Habra, CA · CSLB #1129503 · as of October 8, 2026
Active · clear
Le Heating & Air Conditioning
San Jose, CA · CSLB #721329 · as of October 8, 2026
Active · clear
The Le HVAC
San Jose, CA · CSLB #1029372 · as of October 8, 2026
Active · clear
Leland Plumbing Heating & Air Cond
Windsor, CA · CSLB #848071 · as of October 8, 2026
Active · clear
Le Mechanical
San Jose, CA · CSLB #1121330 · as of October 8, 2026
Active · clear
Lemos Martinez Mario
Bakersfield, CA · CSLB #1043948 · as of October 8, 2026
Active · clear
Lemus HVAC
Vacaville, CA · CSLB #1082287 · as of October 8, 2026
Active · clear
Len Air Specialist INC
Simi Valley, CA · CSLB #736630 · as of October 8, 2026
Active · clear
Lenco Air Conditioning Service Incorporated
Los Angeles, CA · CSLB #287882 · as of October 8, 2026
Active · clear
Lenin & Sons INC
North Hollywood, CA · CSLB #1110343 · as of October 8, 2026
Active · clear
Lennon Heating & Air Conditioning INC
Sonoma, CA · CSLB #486309 · as of October 8, 2026
Active · clear
Lennox Aes Holding LLC
Tallassee, CA · CSLB #1137335 · as of October 8, 2026
Active · clear
Lennox National Account Services INC
Fort Lauderdale, CA · CSLB #902748 · as of October 8, 2026
Active · clear
Lentz Air Conditioning & Heating INC
San Clemente, CA · CSLB #628705 · as of October 8, 2026
Active · clear
Leon Air Systems
Fairfield, CA · CSLB #875230 · as of October 8, 2026
Active · clear
Leopoblo Lopez
Dos Palos, CA · CSLB #1158473 · 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.