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 2, 2026.

Showing 5,401–5,460 of 8,995 contractors

Martinez Service HVAC
Lake Forest, CA · CSLB #1030354 · as of July 2, 2026
Active · clear
Martin Family HVAC INC
Nuevo, CA · CSLB #1070394 · as of July 2, 2026
Active · clear
Martinico And Sons INC
San Jose, CA · CSLB #163059 · as of July 2, 2026
Active · clear
J Martin Indoor Air Quality LLC
Anaheim, CA · CSLB #998956 · as of July 2, 2026
Active · clear
Jose Martin
Apple Valley, CA · CSLB #896755 · as of July 2, 2026
Active · clear
Martins A/c
La Puente, CA · CSLB #1054089 · as of July 2, 2026
Active · clear
William Lawrence Martin
Temecula, CA · CSLB #544828 · as of July 2, 2026
Active · clear
Martis Valley Mechanical INC
Truckee, CA · CSLB #964634 · as of July 2, 2026
Active · clear
Marvair
Palmdale, CA · CSLB #1038032 · as of July 2, 2026
Active · clear
Marvel Air Conditioning & Heating INC
La Verne, CA · CSLB #790684 · as of July 2, 2026
Active · clear
Jose L. Marquez DBA Marvin's Plumbing And Heating
Long Beach, CA · CSLB #797111 · as of July 2, 2026
Active · clear
Marwan Heating & A/c Service
Upland, CA · CSLB #1050518 · as of July 2, 2026
Active · clear
Masco & Son's Heating And Air Conditioning INC
Apple Valley, CA · CSLB #866785 · as of July 2, 2026
Active · clear
Masley Mechanical
Chino Hills, CA · CSLB #1141988 · as of July 2, 2026
Active · clear
Mason Air Systems
Canyon Country, CA · CSLB #1019634 · as of July 2, 2026
Active · clear
Mason Mechanical Services
Novato, CA · CSLB #692130 · as of July 2, 2026
Active · clear
JB Mechanical INC DBA Mas Service
Antioch, CA · CSLB #498289 · as of July 2, 2026
Active · clear
Massone Mechanical INC
Alamo, CA · CSLB #615532 · as of July 2, 2026
Active · clear
Master Air Tech
Moreno Valley, CA · CSLB #1042024 · as of July 2, 2026
Active · clear
Master Chill Heating And Air
Ontario, CA · CSLB #1138989 · as of July 2, 2026
Active · clear
Master Conditioning INC
Chino, CA · CSLB #494352 · as of July 2, 2026
Active · clear
Master Cooling
Moorpark, CA · CSLB #327627 · as of July 2, 2026
Active · clear
Master Cooling Corp
Moorpark, CA · CSLB #656552 · as of July 2, 2026
Active · clear
Master Cool Tech
San Fernando, CA · CSLB #1129499 · as of July 2, 2026
Active · clear
Master Flow Heating & Air Conditioning INC
Fallbrook, CA · CSLB #942505 · as of July 2, 2026
Active · clear
Master Maintenance Home Services INC
San Jose, CA · CSLB #1132390 · as of July 2, 2026
Active · clear
Master Tech Mechanical INC
Redlands, CA · CSLB #739284 · as of July 2, 2026
Active · clear
Master White Ac INC
Chino Hills, CA · CSLB #1150374 · as of July 2, 2026
Active · clear
Matafied Mechanical
Livermore, CA · CSLB #986098 · as of July 2, 2026
Active · clear
Mata Heating And Air Conditioning LLC
Menlo Park, CA · CSLB #1153141 · as of July 2, 2026
Active · clear
Matheneys Plumbing & Heating
Danville, CA · CSLB #933520 · as of July 2, 2026
Active · clear
Matrix HVAC INC
Corona, CA · CSLB #1030168 · as of July 2, 2026
Active · clear
Matson Mechanical INC
Roseville, CA · CSLB #1024061 · as of July 2, 2026
Active · clear
Matteri's Heating & Air
Crows Landing, CA · CSLB #912379 · as of July 2, 2026
Active · clear
Matthew Johns Heating & Cooling
Barstow, CA · CSLB #1028200 · as of July 2, 2026
Active · clear
Matt's Heating & Air
Stanton, CA · CSLB #1013976 · as of July 2, 2026
Active · clear
Matt's HVAC
Mentone, CA · CSLB #1094544 · as of July 2, 2026
Active · clear
Mav Heating And Airconditioning
Whittier, CA · CSLB #1007937 · as of July 2, 2026
Active · clear
Mav Mechanical INC
Lakeside, CA · CSLB #1083329 · as of July 2, 2026
Active · clear
Max Aire Heating & Cooling INC
Morgan Hill, CA · CSLB #1108868 · as of July 2, 2026
Active · clear
Max - Aire Mechanical
Los Gatos, CA · CSLB #1124970 · as of July 2, 2026
Active · clear
Max Air HVAC
Escondido, CA · CSLB #1091653 · as of July 2, 2026
Active · clear
Maxair HVAC
Rancho Cucamonga, CA · CSLB #953623 · as of July 2, 2026
Active · clear
Max Comfort Solutions INC
Elverta, CA · CSLB #1057009 · as of July 2, 2026
Active · clear
Max Flow Heating And Air Conditioning
Eastvale, CA · CSLB #1076849 · as of July 2, 2026
Active · clear
Maximum Air
Fresno, CA · CSLB #824199 · as of July 2, 2026
Active · clear
Maximum Comfort Heating And Air
Alpine, CA · CSLB #1037227 · as of July 2, 2026
Active · clear
Maxon Mechanical INC
Loomis, CA · CSLB #1035084 · as of July 2, 2026
Active · clear
Maxseal LLC
Gilroy, CA · CSLB #1128398 · as of July 2, 2026
Active · clear
Maxx Air Heating And Cooling
Highland, CA · CSLB #878576 · as of July 2, 2026
Active · clear
Maxx Air Heating & Plumbing
Orange, CA · CSLB #795756 · as of July 2, 2026
Active · clear
Maxx Grip Plumbing & Sewer Service INC
Oxnard, CA · CSLB #1113053 · as of July 2, 2026
Active · clear
Maya Heating & Cooling
San Rafael, CA · CSLB #1145202 · as of July 2, 2026
Active · clear
Mayen HVAC Services
San Mateo, CA · CSLB #978201 · as of July 2, 2026
Active · clear
Mayer Air Conditioning And Heating Services
Huntington Beach, CA · CSLB #743942 · as of July 2, 2026
Active · clear
Mayer Mechanical
Vista, CA · CSLB #650823 · as of July 2, 2026
Active · clear
Mayo Mechanical INC
Dana Point, CA · CSLB #472592 · as of July 2, 2026
Active · clear
Mayoral Heating & Air Conditioning
San Bernardino, CA · CSLB #963543 · as of July 2, 2026
Active · clear
M B Heating & Air
Simi Valley, CA · CSLB #1039253 · as of July 2, 2026
Active · clear
M B Plumbing Air Conditioning & Heating INC
Riverside, CA · CSLB #713817 · as of July 2, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 2, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.