California › Sonoma County › HVAC › Petaluma
Licensed HVAC contractors in Petaluma
22 contractors with a Petaluma 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. 22 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 Petaluma 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 22 licensed HVAC contractors
Order: A–Z by business name (neutral, stated). Showing 1–22. ACRAT PLUMBING & HEATING LLC
C-20 · also B, C-10, C-36 · Lic. #623720 · Petaluma 94952
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ADAMS REFRIGERATION SERVICE INC A CALIFORNIA CORPORATION
C-20 · also C-38 · Lic. #279103 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BKB HEATING AIR CONDITIONING & SHEET METAL
C-20 · also C-43 · Lic. #610945 · Petaluma 94975
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BRYAN MASTERSON ENTERPRISES
C-20 · also A, B, C-4, C-16… · Lic. #271933 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CASTLE HEATING & AIR
C-20 · Lic. #1079375 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CORE HEATING & AIR CONDITIONING
C-20 · also C-38 · Lic. #1038373 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
E M L HVAC INC
C-20 · Lic. #993226 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ERNEST ONGARO & SONS INC DBA ONGARO & SONS
C-20 · also C-4, C-10, C-16, C-34… · Lic. #215233 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GALVAKNIGHT SHEET METAL SOLUTIONS INC
C-20 · also C-43 · Lic. #761646 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GREEN CORE HEATING & AIR INC
C-20 · also C-36 · Lic. #1131183 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GREENLIEF ENERGY INC
C-20 · also C-10 · Lic. #1059505 · Petaluma 94952
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GRUPE HVAC
C-20 · Lic. #1076376 · Petaluma 94952
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
JM HVAC
C-20 · Lic. #1001595 · Petaluma 94952
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JOHN OWENS SERVICES INC
C-20 · also B, C-4, C-10, C-36 · Lic. #501853 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LEDESMA HEATING & AIR
C-20 · Lic. #901153 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
M T B
C-20 · also C-43, D-62, D-63 · Lic. #762453 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MARTIN ELECTRIC & HVAC
C-20 · also C-10 · Lic. #1080015 · Petaluma 94975
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MCISAAC HEATING
C-20 · Lic. #1071345 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MILANO MECHANICAL INC
C-20 · also C-36, C-43 · Lic. #797754 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PARAMOUNT PLMG & HTG
C-20 · also C-36 · Lic. #390434 · Petaluma 94975
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
STAT HEATING & AIR CORPORATION
C-20 · also C-36 · Lic. #1123282 · Petaluma 94954
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
TRI-COUNTY HEATING AND SHEET METAL INC
C-20 · also C-43 · Lic. #212733 · Petaluma 94952
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026