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Licensed HVAC contractors in San Carlos
11 contractors with a San Carlos 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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Ad space · openAdvertise here
A Featured spot on this hvac page for San Carlos 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. ALTERNATIVE HEATING AND AIR CONDITIONING SOLUTIONS INC
C-20 · Lic. #967878 · San Carlos 94070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
C T C DESIGN INC
C-20 · Lic. #861385 · San Carlos 94070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
COOL TECH MECHANICAL INC
C-20 · also B · Lic. #1046072 · San Carlos 95070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DEGREE H V A C INC
C-20 · also C-36 · Lic. #886908 · San Carlos 94070
Workers' comp policy on file
Active — CSLB flag: renewal received
FORCED AIR SYSTEMS INC
C-20 · Lic. #866393 · San Carlos 94070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
J W HEATING AND AIR CONDITIONING LLC
C-20 · Lic. #832485 · San Carlos 94070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
M J MECHANICAL SERVICES INC
C-20 · Lic. #853653 · San Carlos 94070
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
NEWCOMB MECHANICAL INC
C-20 · also B, C-4, C-10 · Lic. #699358 · San Carlos 94070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PACIFIC CONTROLS ENGINEERING INC
C-20 · also C-10 · Lic. #746152 · San Carlos 94070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SERVICE UNLIMITED INC
C-20 · also C-36, C-38 · Lic. #456636 · San Carlos 94070
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
ZONE 4 CONSTRUCTION INC
C-20 · also B, C-10 · Lic. #797500 · San Carlos 94070
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026