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

The California Contractors State License Board (CSLB) lists 8,999 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 June 30, 2026.

Showing 3,901–3,960 of 8,999 contractors

Richard E Graves
Yorba Linda, CA · CSLB #508341 · as of June 30, 2026
Active · clear
Grayarea HVAC LLC
Butte Valley, CA · CSLB #1084528 · as of June 30, 2026
Active · clear
Greater San Diego Air Conditioning CO INC
San Diego, CA · CSLB #437153 · as of June 30, 2026
Active · clear
Great Western Aire
Fresno, CA · CSLB #475491 · as of June 30, 2026
Active · clear
Greco Mechanical
Lotus, CA · CSLB #931227 · as of June 30, 2026
Active · clear
Green Air
Burbank, CA · CSLB #997340 · as of June 30, 2026
Active · clear
Green Air
Palm Desert, CA · CSLB #958083 · as of June 30, 2026
Active · clear
Green Air Engineering
Laguna Hills, CA · CSLB #826022 · as of June 30, 2026
Active · clear
Green Air HVAC INC
Los Angeles, CA · CSLB #1027452 · as of June 30, 2026
Active · clear
Green Air Mechanical INC
San Francisco, CA · CSLB #1047690 · as of June 30, 2026
Active · clear
Green Air & Refrigeration
Diamond Bar, CA · CSLB #839148 · as of June 30, 2026
Active · clear
Green Building Test & Balance CO
San Marcos, CA · CSLB #805186 · as of June 30, 2026
Active · clear
Green Core Heating & Air INC
Petaluma, CA · CSLB #1131183 · as of June 30, 2026
Active · clear
Green Earth Heating And Air
Fresno, CA · CSLB #1079188 · as of June 30, 2026
Active · clear
Greenflow HVAC INC
San Francisco, CA · CSLB #940159 · as of June 30, 2026
Active · clear
Green Fuse HVAC & Appliance Repair
Irvine, CA · CSLB #1123169 · as of June 30, 2026
Active · clear
Green Globe HVAC INC
Camarillo, CA · CSLB #874370 · as of June 30, 2026
Active · clear
Greenhill Technologies
Sacramento, CA · CSLB #1148131 · as of June 30, 2026
Active · clear
Green Home Heating And Air LLC
Sacramento, CA · CSLB #1117827 · as of June 30, 2026
Active · clear
Green HVAC LLC
San Jose, CA · CSLB #1129430 · as of June 30, 2026
Active · clear
Green HVAC Pro INC
Woodland Hills, CA · CSLB #1045726 · as of June 30, 2026
Active · clear
Greenland HVAC INC
Van Nuys, CA · CSLB #1122606 · as of June 30, 2026
Active · clear
Greenleaf Heating & Cooling
Whittier, CA · CSLB #975600 · as of June 30, 2026
Active · clear
Green Life Services
Pomona, CA · CSLB #968571 · as of June 30, 2026
Active · clear
Green Line A/c Services INC
Woodland Hills, CA · CSLB #1103289 · as of June 30, 2026
Active · clear
Green Planet H.V.A.C
Los Angeles, CA · CSLB #1132207 · as of June 30, 2026
Active · clear
Green Plumbing Services INC
El Cajon, CA · CSLB #906239 · as of June 30, 2026
Active · clear
Green Power Air Controls INC
Hacienda Heights, CA · CSLB #899104 · as of June 30, 2026
Active · clear
Greenstar Home Services
Memphis, CA · CSLB #795556 · as of June 30, 2026
Active · clear
Green Tech A/c INC
Woodland Hills, CA · CSLB #1001732 · as of June 30, 2026
Active · clear
Greentech Air Solution
San Jose, CA · CSLB #1075314 · as of June 30, 2026
Active · clear
Green Technology Heating And Air
Lynwood, CA · CSLB #1146169 · as of June 30, 2026
Active · clear
Green Valley Air Heating & Air Conditioning INC
French Camp, CA · CSLB #1024486 · as of June 30, 2026
Active · clear
Greenvox Corporation
Burbank, CA · CSLB #908145 · as of June 30, 2026
Active · clear
Ald Project Corporation DBA Greenway Heating & Cooling
Winnetka, CA · CSLB #1063692 · as of June 30, 2026
Active · clear
Greenwood Enterprises
Oakhurst, CA · CSLB #807777 · as of June 30, 2026
Active · clear
Green Zone Experts
Victorville, CA · CSLB #353951 · as of June 30, 2026
Active · clear
Greer Mechanical INC
Granite Bay, CA · CSLB #955161 · as of June 30, 2026
Active · clear
Greg's Heating & Ac INC
Orland, CA · CSLB #1081892 · as of June 30, 2026
Active · clear
Gress Heating & Air INC
Livermore, CA · CSLB #789682 · as of June 30, 2026
Active · clear
Grigg Air
Fair Oaks, CA · CSLB #554906 · as of June 30, 2026
Active · clear
Griggs And Company HVAC INC
Roseville, CA · CSLB #1110874 · as of June 30, 2026
Active · clear
Dmitry Grigoryev
Winnetka, CA · CSLB #1024324 · as of June 30, 2026
Active · clear
Grisler Air Conditioning & Heating
Rancho Cordova, CA · CSLB #614626 · as of June 30, 2026
Active · clear
Grizzly Heating & Air
Lodi, CA · CSLB #1011141 · as of June 30, 2026
Active · clear
Grogan Mechanical INC
Bakersfield, CA · CSLB #1028501 · as of June 30, 2026
Active · clear
Gregory Retzepis DBA GR Plumbing & Heating
Duarte, CA · CSLB #492976 · as of June 30, 2026
Active · clear
Gruen-aire INC
Lancaster, CA · CSLB #260046 · as of June 30, 2026
Active · clear
Grumman/butkus Associates
Evanston, CA · CSLB #1076620 · as of June 30, 2026
Active · clear
Grumpy's HVAC
Sunnyvale, CA · CSLB #1079386 · as of June 30, 2026
Active · clear
Grupe HVAC
Petaluma, CA · CSLB #1076376 · as of June 30, 2026
Active · clear
G S Heating & Air Conditioning INC
Glendale, CA · CSLB #1009115 · as of June 30, 2026
Active · clear
G'S Mechanical
Patterson, CA · CSLB #1117978 · as of June 30, 2026
Active · clear
GSW Heating And Air
Nice, CA · CSLB #1122268 · as of June 30, 2026
Active · clear
G T Heating & Air Conditioning
San Fernando, CA · CSLB #1041439 · as of June 30, 2026
Active · clear
G T K Heating And Cooling
Valley Village, CA · CSLB #692493 · as of June 30, 2026
Active · clear
Guaranteed Air
Anaheim, CA · CSLB #835627 · as of June 30, 2026
Active · clear
Guaranteed Air INC
Anaheim, CA · CSLB #997377 · as of June 30, 2026
Active · clear
Guardian Air
Tulare, CA · CSLB #1087205 · as of June 30, 2026
Active · clear
Guardian Heating And Air
Rio Linda, CA · CSLB #858161 · as of June 30, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of June 30, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.