California › Contra Costa County › HVAC › Concord
Licensed HVAC contractors in Concord
77 contractors with a Concord mailing address hold an active (CLEAR) CSLB C-20 Warm-Air Heating, Ventilating and Air-Conditioning (HVAC) license in CSLB's license file dated Oct 20, 2026. 76 of them show a workers' comp policy on file. Get quotes from up to 3 of them →
Heating and air conditioning work calls for a C-20 license. CSLB requires C-20 licensees to carry workers' compensation even if they have no employees, so check that a policy is on file.
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A Featured spot on this hvac page for Concord is a paid ad for a License Verified contractor, labeled "Ad" every time. It sits apart from the directory and never changes the order below. From $49/mo. Join the waitlist →
All 77 licensed HVAC contractors
Order: A–Z by business name (neutral, stated). Showing 1–77. 99 NORTH GENERAL ENGINEERING
C-20 · also A, B, C-10, C-16… · Lic. #1112114 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
A C HEATING & COOLING SERVICE INC
C-20 · also C-38 · Lic. #928075 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
A C SYSTEMS INC DBA AIR CONDITIONING SYSTEMS
C-20 · also C-10 · Lic. #632329 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
A S A P HEATING & COOLING
C-20 · Lic. #896664 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
A V R HEATING & COOLING SERVICE
C-20 · Lic. #972841 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
A2Z HVACR
C-20 · Lic. #1092965 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AIR PRO HVAC
C-20 · Lic. #855074 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AIR TIME MECHANICAL INC
C-20 · also C-43 · Lic. #736604 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ALBERT D SEENO JR
C-20 · also A, B, C-36, C-43 · Lic. #281273 · Concord 94524
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AMERICAN REFRIGERANT SERVICES INC
C-20 · also B, C-10 · Lic. #246018 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AMPKO HEATING AND AIR CONDITIONING
C-20 · Lic. #689604 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
APM MECHANICAL HEATING & AIR
C-20 · Lic. #1123485 · Concord 94579
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ARCTIC REFRIGERATION INC
C-20 · also C-38 · Lic. #322738 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ATC MECHANICAL LLC
C-20 · Lic. #1043760 · Concord 94519
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
AZIZ AHMAD AZIZI
C-20 · Lic. #1161947 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BAY AIR SYSTEMS INC
C-20 · also C-4, C-10, C-36 · Lic. #450929 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CAL-NEVA ENVIRONMENTAL SYSTEMS
C-20 · also B, C-4, C-10, C-38 · Lic. #365546 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CALI HVAC INC
C-20 · Lic. #1087460 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CES-TECH HEATING AND COOLING
C-20 · Lic. #1042215 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CLASSIC HEATING AND AIR CONDITIONING
C-20 · Lic. #960065 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CLEAN AIR HVAC INC
C-20 · Lic. #829011 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
COMPARE HEATING AIR CONDITIONING AND SHEET METAL
C-20 · also C-43 · Lic. #220289 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
COMPLETE CARE HEATING AND AIR CONDITIONING INC
C-20 · Lic. #1088603 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CONTRA COSTA CLIMATE CONTROL INC
C-20 · also C-38 · Lic. #813250 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
COOLING AND HEATING SOLUTIONS
C-20 · also D-4, D-24 · Lic. #1053819 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DANNY B MEINECKE DBA REFRESHED HEATING & COOLING
C-20 · also C-46 · Lic. #697406 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DELTA MECHANICAL
C-20 · Lic. #1149376 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
EAST BAY HEATING AND COOLING INC
C-20 · Lic. #1055076 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ENTERPRISE ROOFING SERVICE INC
C-20 · also ASB, B, C-39, C-43 · Lic. #221274 · Concord 94524
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FERREIRA'S HEATING AND AIR CONDITIONING INC
C-20 · Lic. #1031063 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FIVE STAR HVAC SERVICE
C-20 · Lic. #1145024 · Concord 94522
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FREEWAY MECHANICAL
C-20 · also B · Lic. #979656 · Concord 94521
Workers' comp policy on file
Active — CSLB flag: disciplinary bond filed
FRESCHI AIR SYSTEMS LLC
C-20 · also B, C-36, C-46 · Lic. #1077999 · Concord 94520
Workers' comp policy on file
Active — CSLB flag: class removal pending
GAPEX INC
C-20 · Lic. #1033596 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GARDNER MECHANICAL
C-20 · Lic. #1151782 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GLOBAL COMFORT HEATING & AIR
C-20 · also C-38 · Lic. #410905 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GREEN AIR HEATING AND AIR CONDITIONING INC
C-20 · also B, C-10, C-46 · Lic. #916517 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GROUND LEVEL CONSTRUCTION INC
C-20 · also A, B, HAZ · Lic. #991672 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GROUNDLEVEL-OVERAA JOINT VENTURE 2
C-20 · also A, B, HAZ · Lic. #1084601 · Concord 94521
Workers' comp: exempt · CSLB requires a policy for this class; ask
✓License Verified CSLB file · Oct 20, 2026
HIGH PERFORMANCE HEATING & AIR
C-20 · Lic. #821099 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HIGH TECH PLUMBING
C-20 · also C-36 · Lic. #1021954 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HOMETOWN HEATING AND AIR CONDITIONING
C-20 · Lic. #1005143 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HQR AIR INC
C-20 · Lic. #1125372 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HVAC FOR LES$ INCORPORATED
C-20 · Lic. #1038617 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
INFINIUM AIR INC
C-20 · Lic. #995372 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JC CLIMATE CONTROL TECHNOLOGY'S INC
C-20 · Lic. #1050705 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JOHN D HARTVICKSON
C-20 · Lic. #409642 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
K & R HEATING AND AIR CONDITIONING SERVICE
C-20 · also C-38 · Lic. #986374 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
K & R HEATING AND COOLING SERVICE INC
C-20 · Lic. #1148600 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LESCURE COMPANY INC
C-20 · also A, B, C-4, C-16… · Lic. #248204 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LUIS F VILCHEZ
C-20 · Lic. #879014 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
M & S HVACR CONTRACTORS INC
C-20 · also C-38 · Lic. #956647 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MATRIX HG INC
C-20 · also B, C-4, C-10, C-36… · Lic. #812232 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
N V HEATHORN CO
C-20 · also A, B, C-2, C-4… · Lic. #761659 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
NICKELS HVAC
C-20 · Lic. #1144848 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
NWP HEATING AND AIR
C-20 · Lic. #1133687 · Concord 94521
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
OLEKSII KOZIURENKO
C-20 · also B · Lic. #1148535 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PANDA HVAC
C-20 · also C-2 · Lic. #1040824 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PHILCO AIR CONTROL INC
C-20 · also C-10, C-36 · Lic. #1010853 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
POLAR MECHANICAL INC
C-20 · also C-38 · Lic. #1062744 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
POWELL MECHANICAL INC
C-20 · Lic. #1080625 · Concord 94519
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
RAUL FERNANDO VALDERRAMA
C-20 · also C-38 · Lic. #918778 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ROBERT L DIAS DBA RD'S SERVICE CONTRACTOR
C-20 · also C-29, C-36 · Lic. #523223 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ROMERO'S HVAC INC
C-20 · Lic. #709906 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SAKI BROTHERS INC
C-20 · also B · Lic. #1100808 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SAYMAN MECHANICAL SYSTEMS INC
C-20 · Lic. #1045145 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SMART HEATING AND AIR CONDITIONING INC
C-20 · Lic. #1084354 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SOTO H V A C
C-20 · Lic. #888673 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SUNIA CONSTRUCTION INC
C-20 · also B, C-10 · Lic. #1062476 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SWIFT CERTIFIED MECHANICAL
C-20 · also C-36, C-38, C-46 · Lic. #717212 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
T E P S
C-20 · also B, C-10 · Lic. #817449 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
THERMO H V A C REFRIGERATION
C-20 · Lic. #1024929 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
U S T TESTING SERVICES INC
C-20 · also A, B, C-4, C-12… · Lic. #866797 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
VOLTYX HEATING & AIR
C-20 · Lic. #1141249 · Concord 94518
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WALNUT CREEK HEATING AND AIR CONDITIONING
C-20 · Lic. #972682 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WESTEC AIR SYSTEMS CO
C-20 · Lic. #825618 · Concord 94521
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ZF HEATING & COOLING
C-20 · Lic. #1149602 · Concord 94520
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026