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 7,261–7,320 of 8,930 contractors

Sierra Mechanical Corporation
Rancho Cordova, CA · CSLB #1157197 · as of July 3, 2026
Active · clear
Sierra Ridge Heating And Aire
Granite Bay, CA · CSLB #1151421 · as of July 3, 2026
Active · clear
Russell Sigler INC
Tolleson, CA · CSLB #960159 · as of July 3, 2026
Active · clear
Sigma Appliances INC DBA Sigma HVAC Services
Capistrano Beach, CA · CSLB #1070652 · as of July 3, 2026
Active · clear
E C Sigmon INC
Chatsworth, CA · CSLB #690166 · as of July 3, 2026
Active · clear
Signal Heating & Air Conditioning
Livermore, CA · CSLB #638992 · as of July 3, 2026
Active · clear
Signal Mechanical INC
Signal Hill, CA · CSLB #571650 · as of July 3, 2026
Active · clear
Signet Controls INC
Thousand Oaks, CA · CSLB #912113 · as of July 3, 2026
Active · clear
Silicon Valley Heating And Air INC
San Jose, CA · CSLB #1136550 · as of July 3, 2026
Active · clear
Silicon Valley Mechanical INC
San Jose, CA · CSLB #992731 · as of July 3, 2026
Active · clear
Silva Heating & Air INC
San Martin, CA · CSLB #1102365 · as of July 3, 2026
Active · clear
Silverbacq Air & Heating
Bakersfield, CA · CSLB #1081804 · as of July 3, 2026
Active · clear
Silver Fox Cooling And Heating
Irvine, CA · CSLB #1136295 · as of July 3, 2026
Active · clear
Simi Heating & Air INC
Stockton, CA · CSLB #1076984 · as of July 3, 2026
Active · clear
Simmons Air INC
La Quinta, CA · CSLB #780534 · as of July 3, 2026
Active · clear
Simon Air Conditioning And Heating
Lakeside, CA · CSLB #908441 · as of July 3, 2026
Active · clear
Simon Air INC
Valley Village, CA · CSLB #852561 · as of July 3, 2026
Active · clear
Ruben Simonian
Canyon Country, CA · CSLB #1053418 · as of July 3, 2026
Active · clear
Simon's Air Condtioning And Heating INC
Paramount, CA · CSLB #1118814 · as of July 3, 2026
Active · clear
Zaven Simonyan
Valley Glen, CA · CSLB #1008776 · as of July 3, 2026
Active · clear
Simple Air
Torrance, CA · CSLB #869488 · as of July 3, 2026
Active · clear
Pipe Doctors Plumbing INC DBA Simple Water Heater
Sherman Oaks, CA · CSLB #1048568 · as of July 3, 2026
Active · clear
Simplified Mechanical
Orange, CA · CSLB #1055172 · as of July 3, 2026
Active · clear
Simpson Mechanical INC
Escondido, CA · CSLB #859044 · as of July 3, 2026
Active · clear
Simpson Sheet Metal INC
Santa Rosa, CA · CSLB #416913 · as of July 3, 2026
Active · clear
Sinclair Air Systems
La Verne, CA · CSLB #724978 · as of July 3, 2026
Active · clear
Sinclair Heating And Air
Westminster, CA · CSLB #1134875 · as of July 3, 2026
Active · clear
Singh Air-conditioning And Heating
Ripon, CA · CSLB #1103947 · as of July 3, 2026
Active · clear
Singh Air Systems
Hayward, CA · CSLB #1140661 · as of July 3, 2026
Active · clear
Sinkie's Heating And Cooling
Chico, CA · CSLB #1104633 · as of July 3, 2026
Active · clear
S I S Air INC
Sun Valley, CA · CSLB #936362 · as of July 3, 2026
Active · clear
Site Six HVAC
Corona, CA · CSLB #1115159 · as of July 3, 2026
Active · clear
Six Mechanical LLC
Bakersfield, CA · CSLB #1069149 · as of July 3, 2026
Active · clear
Six Rivers Mechanical INC
Eureka, CA · CSLB #1013735 · as of July 3, 2026
Active · clear
Siya Air Conditioning & Heating
Montebello, CA · CSLB #1045067 · as of July 3, 2026
Active · clear
S&J Air Systems
Granite Bay, CA · CSLB #846417 · as of July 3, 2026
Active · clear
SJ California HVAC
San Jose, CA · CSLB #1122319 · as of July 3, 2026
Active · clear
SJ Heating & Air Conditioning
San Jose, CA · CSLB #1139062 · as of July 3, 2026
Active · clear
S J S Heating & A/c
Monrovia, CA · CSLB #804895 · as of July 3, 2026
Active · clear
SK Air Conditioning Corp
Chino, CA · CSLB #931901 · as of July 3, 2026
Active · clear
Ski Air Incorporated
Placerville, CA · CSLB #339581 · as of July 3, 2026
Active · clear
Skidco Air
Rancho Cucamonga, CA · CSLB #972571 · as of July 3, 2026
Active · clear
Skilled Mechanical Solutions LLC
San Diego, CA · CSLB #1143884 · as of July 3, 2026
Active · clear
Skills HVAC Services INC
Panorama City, CA · CSLB #1075783 · as of July 3, 2026
Active · clear
S-klass Comfort INC
Glendale, CA · CSLB #1146326 · as of July 3, 2026
Active · clear
Sko Air Conditioning
North Hollywood, CA · CSLB #827784 · as of July 3, 2026
Active · clear
SKY Clean Air INC
San Diego, CA · CSLB #1036543 · as of July 3, 2026
Active · clear
SKY Country Heating And Air Cond
Mira Loma, CA · CSLB #896055 · as of July 3, 2026
Active · clear
SKY Heating And Air
Sacramento, CA · CSLB #1094627 · as of July 3, 2026
Active · clear
SKY Heating And Air Conditioning INC
Antelope, CA · CSLB #1094875 · as of July 3, 2026
Active · clear
SKY Heating & Cooling INC
Orange, CA · CSLB #1045281 · as of July 3, 2026
Active · clear
Skyline Heating And Sheet Metal
Mountain View, CA · CSLB #205507 · as of July 3, 2026
Active · clear
Skyrocket HVAC & Appliance Repair
Milpitas, CA · CSLB #1056488 · as of July 3, 2026
Active · clear
Skytown Mechanical
El Cerrito, CA · CSLB #1030357 · as of July 3, 2026
Active · clear
SKY Whirl INC
Patterson, CA · CSLB #962780 · as of July 3, 2026
Active · clear
Slane Heating And Air Conditioning
Fallbrook, CA · CSLB #1103325 · as of July 3, 2026
Active · clear
Slayton Mechanical Contractors INC
Lakeside, CA · CSLB #662141 · as of July 3, 2026
Active · clear
S L Mechanical Contractors
San Francisco, CA · CSLB #697542 · as of July 3, 2026
Active · clear
Sloan Mechanical
Foothill Ranch, CA · CSLB #946467 · as of July 3, 2026
Active · clear
S L R Heating & Cooling INC
Valley Village, CA · CSLB #1066955 · 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.