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

The California Contractors State License Board (CSLB) lists 8,995 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 1, 2026.

Showing 5,101–5,160 of 8,995 contractors

Lee's Heating & Air
Placerville, CA · CSLB #683482 · as of July 1, 2026
Active · clear
Lee's Heating And Air Conditioning CO
Stockton, CA · CSLB #456424 · as of July 1, 2026
Active · clear
Lee's Heating And Air Corp
Perris, CA · CSLB #498630 · as of July 1, 2026
Active · clear
Lee's Sheet Metal Heating & Cooling
Vallejo, CA · CSLB #600910 · as of July 1, 2026
Active · clear
Sukwon Lee
Campbell, CA · CSLB #1020965 · as of July 1, 2026
Active · clear
Leesung Heating & Air Condition
Buena Park, CA · CSLB #1062853 · as of July 1, 2026
Active · clear
Thomas Lee
North Hollywood, CA · CSLB #778536 · as of July 1, 2026
Active · clear
Yong Gun Lee
Moreno Valley, CA · CSLB #1120535 · as of July 1, 2026
Active · clear
Left Coast Air
Menifee, CA · CSLB #1012403 · as of July 1, 2026
Active · clear
Left Coast Heating And Air Conditioning
Livermore, CA · CSLB #1040611 · as of July 1, 2026
Active · clear
Left Coast Mechanical Heating & Air
San Jose, CA · CSLB #1092267 · as of July 1, 2026
Active · clear
Legacy A/c & Heating
Moreno Valley, CA · CSLB #1011507 · as of July 1, 2026
Active · clear
Legacy Air
Tulare, CA · CSLB #1150597 · as of July 1, 2026
Active · clear
Legacy Air Hvacr LLC
El Dorado Hills, CA · CSLB #1155634 · as of July 1, 2026
Active · clear
Legacy Heating & Air
Rohnert Park, CA · CSLB #1154703 · as of July 1, 2026
Active · clear
Legacy Heating & Air INC
North Hills, CA · CSLB #1042949 · as of July 1, 2026
Active · clear
Legendary Air Heating & Cooling
Hemet, CA · CSLB #1116121 · as of July 1, 2026
Active · clear
Legendary Mechanical Corporation
Malibu, CA · CSLB #1145437 · as of July 1, 2026
Active · clear
Legend Heating And Ac INC
Sacramento, CA · CSLB #1153738 · as of July 1, 2026
Active · clear
Legends Heating And Air Conditioning
Temecula, CA · CSLB #1122771 · as of July 1, 2026
Active · clear
Legit Air
La Habra, CA · CSLB #1129503 · as of July 1, 2026
Active · clear
Le Heating & Air Conditioning
San Jose, CA · CSLB #721329 · as of July 1, 2026
Active · clear
The Le HVAC
San Jose, CA · CSLB #1029372 · as of July 1, 2026
Active · clear
Leland Plumbing Heating & Air Cond
Windsor, CA · CSLB #848071 · as of July 1, 2026
Active · clear
Le Mechanical
San Jose, CA · CSLB #1121330 · as of July 1, 2026
Active · clear
Lemos Martinez Mario
Bakersfield, CA · CSLB #1043948 · as of July 1, 2026
Active · clear
Lemus HVAC
Vacaville, CA · CSLB #1082287 · as of July 1, 2026
Active · clear
Len Air Specialist INC
Simi Valley, CA · CSLB #736630 · as of July 1, 2026
Active · clear
Lenco Air Conditioning Service Incorporated
Los Angeles, CA · CSLB #287882 · as of July 1, 2026
Active · clear
Lenin & Sons INC
North Hollywood, CA · CSLB #1110343 · as of July 1, 2026
Active · clear
Lennon Heating & Air Conditioning INC
Sonoma, CA · CSLB #486309 · as of July 1, 2026
Active · clear
Lennox Aes Holding LLC
Tallassee, CA · CSLB #1137335 · as of July 1, 2026
Active · clear
Lennox National Account Services INC
Fort Lauderdale, CA · CSLB #902748 · as of July 1, 2026
Active · clear
Lentz Air Conditioning & Heating INC
San Clemente, CA · CSLB #628705 · as of July 1, 2026
Active · clear
Leon Air Systems
Fairfield, CA · CSLB #875230 · as of July 1, 2026
Active · clear
Leo's Heating & Air
San Bernardino, CA · CSLB #1136176 · as of July 1, 2026
Active · clear
Lerman Pros HVAC INC
Van Nuys, CA · CSLB #1085495 · as of July 1, 2026
Active · clear
Steven Le
Westminster, CA · CSLB #1034308 · as of July 1, 2026
Active · clear
Level Up Heating And Air
Chowchilla, CA · CSLB #1140460 · as of July 1, 2026
Active · clear
Level Up Heating And Air Conditioning
Highland, CA · CSLB #1113535 · as of July 1, 2026
Active · clear
Chris Levering Heating & Air Conditioning
San Leandro, CA · CSLB #797190 · as of July 1, 2026
Active · clear
Lewis Air INC
Rancho Santa Margarita, CA · CSLB #575873 · as of July 1, 2026
Active · clear
Daniel Lewis
Santa Clara, CA · CSLB #1083212 · as of July 1, 2026
Active · clear
Lewis Mechanical Systems
Pico Rivera, CA · CSLB #1038304 · as of July 1, 2026
Active · clear
Lex Air Heating & Cooling
Hesperia, CA · CSLB #1127561 · as of July 1, 2026
Active · clear
Lexer Mechanical INC
Antelope, CA · CSLB #1145398 · as of July 1, 2026
Active · clear
Ley Heating & Air Conditioning INC
San Jacinto, CA · CSLB #745249 · as of July 1, 2026
Active · clear
LG Heating And Cooling
Roseville, CA · CSLB #1048653 · as of July 1, 2026
Active · clear
LH Heating And Air
Napa, CA · CSLB #1103438 · as of July 1, 2026
Active · clear
Lias Mechanical INC
Oakland, CA · CSLB #817456 · as of July 1, 2026
Active · clear
Liberty Air LLC
Encinitas, CA · CSLB #837996 · as of July 1, 2026
Active · clear
Liberty Cooling & Heating INC
Phoenix, CA · CSLB #937358 · as of July 1, 2026
Active · clear
Liberty Plumbing & Heating
Los Angeles, CA · CSLB #701083 · as of July 1, 2026
Active · clear
Liberty Plumbing Heating & Air Conditioning INC
Murrieta, CA · CSLB #761640 · as of July 1, 2026
Active · clear
Chun Li
Ontario, CA · CSLB #1054025 · as of July 1, 2026
Active · clear
Life Time Air INC
Glendale, CA · CSLB #1150892 · as of July 1, 2026
Active · clear
Lighter Living CO
San Diego, CA · CSLB #998214 · as of July 1, 2026
Active · clear
Lighthouse A/c Service
Rialto, CA · CSLB #958467 · as of July 1, 2026
Active · clear
Light House Heating & Cooling INC
Canyon Lake, CA · CSLB #1062152 · as of July 1, 2026
Active · clear
Lighthouse Plumbing & Heating
Gilroy, CA · CSLB #782136 · as of July 1, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 1, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.