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Licensed HVAC contractors in San Ramon
16 contractors with a San Ramon 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. 16 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 San Ramon 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 16 licensed HVAC contractors
Order: A–Z by business name (neutral, stated). Showing 1–16. A & R HVAC
C-20 · Lic. #861542 · San Ramon 94582
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AIR PERFORMANCE HEATING & COOLING LLC
C-20 · Lic. #876710 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BAY AREA HVAC SERVICE
C-20 · Lic. #1136642 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CHILL HEATING AND COOLING
C-20 · Lic. #1103038 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CORE CONSTRUCTION BUILDERS AND ASSOCIATES INC
C-20 · also B, C-36 · Lic. #1068729 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ECO SYSTEMS HEATING & AIR
C-20 · also B · Lic. #924909 · San Ramon 94583
Workers' comp policy on file
Active — CSLB flag: bond payment pending (entity)
EXPRESS HEATING & AIR CONDITIONING INC
C-20 · Lic. #839831 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LEGACY MECHANICAL & ENERGY SERVICES INC
C-20 · also B, C-4, C-36, C-38 · Lic. #808022 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LEVEL UP CONSTRUCTION SERVICE
C-20 · also B, C-10 · Lic. #818798 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MOD COMFORT SOLUTIONS HEATING AND AIR CONDITIONING
C-20 · Lic. #1127091 · San Ramon 94583
Workers' comp policy on file
Active — CSLB flag: case or citation pending
ONE HOUR HEATING & AIR CONDITIONING
C-20 · Lic. #1160719 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
S A HEATING AND AIR CONDITIONING
C-20 · Lic. #932696 · San Ramon 94582
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SAVVYTEKS HEATING AND AIR CONDITIONING
C-20 · Lic. #1107461 · San Ramon 94583
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SERVICEXCEL HEATING AND AIR CONDITIONING
C-20 · Lic. #1123970 · San Ramon 94582
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
VALENTINE HEATING AND AIR
C-20 · Lic. #1036405 · San Ramon 94582
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
VOLTA HVAC
C-20 · also C-10, C-46 · Lic. #1073370 · San Ramon 94582
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026