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 3,541–3,600 of 8,999 contractors

Fitting Mechanical
Grass Valley, CA · CSLB #844553 · as of June 30, 2026
Active · clear
Fitzgerald Plumbing Service Company
Anaheim, CA · CSLB #1129622 · as of June 30, 2026
Active · clear
Fitzpatrick's Heating INC
Fairfax, CA · CSLB #371959 · as of June 30, 2026
Active · clear
Five Star Heating And Air Conditioning
El Cajon, CA · CSLB #907237 · as of June 30, 2026
Active · clear
A Five Star Heating & Cooling
Sacramento, CA · CSLB #565558 · as of June 30, 2026
Active · clear
Five Star HVAC Service
Concord, CA · CSLB #1145024 · as of June 30, 2026
Active · clear
Five Star HVAC SVC CO
Ramona, CA · CSLB #1041120 · as of June 30, 2026
Active · clear
Fix Air
Riverside, CA · CSLB #797428 · as of June 30, 2026
Active · clear
Fixair Comfort INC
Northridge, CA · CSLB #1142606 · as of June 30, 2026
Active · clear
Fix It Air
Whittier, CA · CSLB #856507 · as of June 30, 2026
Active · clear
Fix It Fast Plumbing And Rooter INC
Moorpark, CA · CSLB #938705 · as of June 30, 2026
Active · clear
Fix-it Rite
Wilton, CA · CSLB #669845 · as of June 30, 2026
Active · clear
Fix MY A C Incorporated
Chino Hills, CA · CSLB #855348 · as of June 30, 2026
Active · clear
F J Heating And Air
Pearblossom, CA · CSLB #777491 · as of June 30, 2026
Active · clear
FJ Heating And Air
Pearblossom, CA · CSLB #1089806 · as of June 30, 2026
Active · clear
Flanagan's Heating And Air
Palm Springs, CA · CSLB #1138928 · as of June 30, 2026
Active · clear
Fleet Heating & Air Incorporated
Sparks, CA · CSLB #906032 · as of June 30, 2026
Active · clear
Flemings Air
Long Beach, CA · CSLB #938410 · as of June 30, 2026
Active · clear
Flex Mechanical
Tustin, CA · CSLB #1126251 · as of June 30, 2026
Active · clear
Flip Mechanical
El Cajon, CA · CSLB #1048923 · as of June 30, 2026
Active · clear
Flite Mechanical
Spring Valley, CA · CSLB #1071284 · as of June 30, 2026
Active · clear
Flo Heating & Air INC
Los Angeles, CA · CSLB #1135987 · as of June 30, 2026
Active · clear
Florea Plumbing
West Hills, CA · CSLB #941972 · as of June 30, 2026
Active · clear
Fausto Flores JR Heating/air Conditioning
Placentia, CA · CSLB #926020 · as of June 30, 2026
Active · clear
Flores Mechanical Services
Fairfield, CA · CSLB #876638 · as of June 30, 2026
Active · clear
Flow Mechanical
San Diego, CA · CSLB #1035134 · as of June 30, 2026
Active · clear
Flowpro Heating & Air
Corona, CA · CSLB #1142668 · as of June 30, 2026
Active · clear
Flowsair INC
Garden Grove, CA · CSLB #1077442 · as of June 30, 2026
Active · clear
F L P Heating & Air Conditioning
Sacramento, CA · CSLB #1064354 · as of June 30, 2026
Active · clear
FLY Aire Heating & Air Conditioning
San Bernardino, CA · CSLB #1053656 · as of June 30, 2026
Active · clear
Flynn Air
Huntington Beach, CA · CSLB #749287 · as of June 30, 2026
Active · clear
Flynn's Heating & Air
Buellton, CA · CSLB #985649 · as of June 30, 2026
Active · clear
F M A Heating & Air
Modesto, CA · CSLB #1095983 · as of June 30, 2026
Active · clear
FMG HVAC INC
Los Angeles, CA · CSLB #1065017 · as of June 30, 2026
Active · clear
FM Heating & Air Conditioning INC
South Gate, CA · CSLB #1017794 · as of June 30, 2026
Active · clear
Brian S Fogg
Cathedral City, CA · CSLB #768077 · as of June 30, 2026
Active · clear
Folger Mechanical LLC
Norco, CA · CSLB #1018531 · as of June 30, 2026
Active · clear
Folsom Lake Heating & Air LLC
Granite Bay, CA · CSLB #1128724 · as of June 30, 2026
Active · clear
Rich Fomin Mechanical
Cloverdale, CA · CSLB #889325 · as of June 30, 2026
Active · clear
Fonnair INC
Apple Valley, CA · CSLB #1125409 · as of June 30, 2026
Active · clear
Food Equipment Repair Service INC
Santa Rosa, CA · CSLB #952668 · as of June 30, 2026
Active · clear
Foothill Air Systems
Grass Valley, CA · CSLB #837200 · as of June 30, 2026
Active · clear
Foothill Heating & Air Conditioning
Ontario, CA · CSLB #979917 · as of June 30, 2026
Active · clear
Forced Air
Ojai, CA · CSLB #868060 · as of June 30, 2026
Active · clear
Forced Air Mechanical INC
Jurupa Valley, CA · CSLB #1084614 · as of June 30, 2026
Active · clear
Forced Air Systems INC
San Carlos, CA · CSLB #866393 · as of June 30, 2026
Active · clear
Forest Mechanical
Foresthill, CA · CSLB #1096201 · as of June 30, 2026
Active · clear
Forever Cool Refrigeration INC
Los Angeles, CA · CSLB #961452 · as of June 30, 2026
Active · clear
Forster Heating Air Conditioning & Sheet Metal
Auburn, CA · CSLB #501585 · as of June 30, 2026
Active · clear
Fortt Mechanical INC
Mission Viejo, CA · CSLB #646285 · as of June 30, 2026
Active · clear
Fortuny-air
Victorville, CA · CSLB #1099140 · as of June 30, 2026
Active · clear
Foster Heating & Air
Sacramento, CA · CSLB #1068983 · as of June 30, 2026
Active · clear
Four Brothers Heating & Air Conditioning LLC
Glendale, CA · CSLB #1153097 · as of June 30, 2026
Active · clear
Four-l Heating And Air
Sacramento, CA · CSLB #598708 · as of June 30, 2026
Active · clear
Four Roots Air Solutions LLC
Loomis, CA · CSLB #1147036 · as of June 30, 2026
Active · clear
Four Seasons Air Conditioning And Heating
Diamond Bar, CA · CSLB #966880 · as of June 30, 2026
Active · clear
Four Seasons Air INC
Stanton, CA · CSLB #777059 · as of June 30, 2026
Active · clear
Four Seasons Heating & Air Conditioning
La Mesa, CA · CSLB #1125120 · as of June 30, 2026
Active · clear
Four Seasons Heating And Air LLC
Anaheim, CA · CSLB #1136229 · as of June 30, 2026
Active · clear
Four Seasons Heating & Cooling INC
Ventura, CA · CSLB #734547 · 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.