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 4,021–4,080 of 8,999 contractors

Happy Qi Enterprises INC
Laguna Beach, CA · CSLB #1134342 · as of June 30, 2026
Active · clear
Harber Heating And Air
Camarillo, CA · CSLB #979805 · as of June 30, 2026
Active · clear
Harbor Air Conditioning & Heating
San Diego, CA · CSLB #744993 · as of June 30, 2026
Active · clear
Harbor Air Conditioning LLC
Harbor City, CA · CSLB #1144099 · as of June 30, 2026
Active · clear
Harbor Mechanical LLC
Wilmington, CA · CSLB #1057086 · as of June 30, 2026
Active · clear
Hardaway H V A C
El Centro, CA · CSLB #661537 · as of June 30, 2026
Active · clear
Harden Heating And Air Conditioning
Lincoln, CA · CSLB #945460 · as of June 30, 2026
Active · clear
Randy Hardin Mechanical
Citrus Heights, CA · CSLB #1068496 · as of June 30, 2026
Active · clear
Harlan Air
Temple City, CA · CSLB #873592 · as of June 30, 2026
Active · clear
Harlan Quality Home Services
Gold River, CA · CSLB #1018175 · as of June 30, 2026
Active · clear
Harley's Heating And Cooling
Placerville, CA · CSLB #1132305 · as of June 30, 2026
Active · clear
Haro HVAC Services
Pico Rivera, CA · CSLB #1141892 · as of June 30, 2026
Active · clear
Harris Air
West Sacramento, CA · CSLB #956638 · as of June 30, 2026
Active · clear
Harris & Hart INC
Ogden, CA · CSLB #650915 · as of June 30, 2026
Active · clear
Harris Las Vegas LLC
St Paul, CA · CSLB #1023743 · as of June 30, 2026
Active · clear
John Harrison INC
Stockton, CA · CSLB #907555 · as of June 30, 2026
Active · clear
Harrison Mechanical Service
Santa Clara, CA · CSLB #775532 · as of June 30, 2026
Active · clear
Scott Harrison Plumbing And Heating INC
Garden Grove, CA · CSLB #481190 · as of June 30, 2026
Active · clear
S & B Harris Heating & Air INC
Valley Springs, CA · CSLB #1064857 · as of June 30, 2026
Active · clear
Harry Clark Heating & Air Conditioning INC
Oakland, CA · CSLB #1056105 · as of June 30, 2026
Active · clear
M H Hart Plumbing Heating & Air Conditioning INC
Pasadena, CA · CSLB #798223 · as of June 30, 2026
Active · clear
Harts Pro Service LLC DBA Harts Pro HVAC
Clovis, CA · CSLB #1126161 · as of June 30, 2026
Active · clear
John D Hartvickson
Concord, CA · CSLB #409642 · as of June 30, 2026
Active · clear
Harvey's Heating And Air
Orange, CA · CSLB #913677 · as of June 30, 2026
Active · clear
Ha's Air Conditioning Services
Panorama City, CA · CSLB #732741 · as of June 30, 2026
Active · clear
Hashco Air
Irvine, CA · CSLB #941125 · as of June 30, 2026
Active · clear
Hasler Refrigeration INC
Yuma, CA · CSLB #775105 · as of June 30, 2026
Active · clear
Hassinger HVAC
Prescott Valley, CA · CSLB #1132103 · as of June 30, 2026
Active · clear
Haven Air Conditioning
Orange, CA · CSLB #748387 · as of June 30, 2026
Active · clear
Hawaiian Air
Fullerton, CA · CSLB #299279 · as of June 30, 2026
Active · clear
Hawes Heating & Air Conditioning
Davis, CA · CSLB #606836 · as of June 30, 2026
Active · clear
Hay-cool HVAC INC
Glendale, CA · CSLB #1101079 · as of June 30, 2026
Active · clear
Hayman Refrigeration & Air Conditioning
Windsor, CA · CSLB #913517 · as of June 30, 2026
Active · clear
Don Hays Heating & Air Conditioning
Redding, CA · CSLB #1073866 · as of June 30, 2026
Active · clear
HB A C Specialties
Riverside, CA · CSLB #460500 · as of June 30, 2026
Active · clear
H B Heating And Cooling
Barstow, CA · CSLB #1100837 · as of June 30, 2026
Active · clear
HB Mechanical
Whittier, CA · CSLB #1091795 · as of June 30, 2026
Active · clear
H & B Mechanical INC
Hesperia, CA · CSLB #792808 · as of June 30, 2026
Active · clear
H&B Refrigeration & Heating INC
Barstow, CA · CSLB #716804 · as of June 30, 2026
Active · clear
HC Air System INC
Sun Valley, CA · CSLB #1005782 · as of June 30, 2026
Active · clear
H & C Air Systems
Glendale, CA · CSLB #1040395 · as of June 30, 2026
Active · clear
HD Air INC
Clovis, CA · CSLB #1008416 · as of June 30, 2026
Active · clear
H D Ez - Air INC
Hayward, CA · CSLB #974381 · as of June 30, 2026
Active · clear
HD - Heating & Air
Lancaster, CA · CSLB #1077431 · as of June 30, 2026
Active · clear
H & D Heating And Air Conditioning Services
West Sacramento, CA · CSLB #1090137 · as of June 30, 2026
Active · clear
HD Mechanical INC
Buena Park, CA · CSLB #1094219 · as of June 30, 2026
Active · clear
Scott Heady Ac HTG & Plmgb
Riverside, CA · CSLB #813879 · as of June 30, 2026
Active · clear
Heald Mechanical
Sacramento, CA · CSLB #607590 · as of June 30, 2026
Active · clear
Healing Comfort Heating Air & Plumbing
Sonoma, CA · CSLB #1075338 · as of June 30, 2026
Active · clear
Healthy Air
Ceres, CA · CSLB #899548 · as of June 30, 2026
Active · clear
Healthy Duct Cleaning
Daly City, CA · CSLB #1007238 · as of June 30, 2026
Active · clear
Heat And Air Solutions INC
Applegate, CA · CSLB #1133607 · as of June 30, 2026
Active · clear
Heat And Cool Air Zone INC
Beverly Hills, CA · CSLB #904435 · as of June 30, 2026
Active · clear
Heat Busters INC
Poway, CA · CSLB #1118178 · as of June 30, 2026
Active · clear
Heat & Cool Care INC
Chatsworth, CA · CSLB #844141 · as of June 30, 2026
Active · clear
Heat & Cool Connections
Reseda, CA · CSLB #1057494 · as of June 30, 2026
Active · clear
Heatcool Systems
Lakewood, CA · CSLB #1155106 · as of June 30, 2026
Active · clear
Heater Man Heating And Air
Woodbridge, CA · CSLB #825795 · as of June 30, 2026
Active · clear
Heaters Up Ac's Down
Chula Vista, CA · CSLB #1142393 · as of June 30, 2026
Active · clear
Heating & Ac Weather Engineer
Lomita, CA · CSLB #1079747 · 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.