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Licensed HVAC contractors in Discovery Bay
11 contractors with a Discovery Bay 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. 11 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 Discovery Bay 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 11 licensed HVAC contractors
Order: A–Z by business name (neutral, stated). Showing 1–11. A G HEATING & AIR CONDITIONING
C-20 · also D-3 · Lic. #871499 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AIR BROTHERS MECHANICAL INC
C-20 · Lic. #1034383 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AIR MASTERS HEATING AND AIR CONDITIONING INC
C-20 · Lic. #873520 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AMBIENT AIR INC
C-20 · Lic. #789422 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CHRISTY PLUMBING
C-20 · also B, C-36 · Lic. #888948 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DELTA CLIMATE CONTROL
C-20 · Lic. #940106 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FAIRWAY
C-20 · also C-36 · Lic. #479802 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FAMILY HEATING AND COOLING LLC
C-20 · Lic. #1115480 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HI TECH ENVIRONMENTAL HEATING & AIR
C-20 · Lic. #1049623 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HOME FRONT HEATING AND AIR CONDITIONING INC
C-20 · also B · Lic. #1013009 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
J T GADDIS HEATING & AIR
C-20 · Lic. #727515 · Discovery Bay 94505
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026