California › Sonoma County › HVAC › Windsor
Licensed HVAC contractors in Windsor
11 contractors with a Windsor 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.
FeaturedAds · paid placement
Ad space · openAdvertise here
A Featured spot on this hvac page for Windsor 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 →
Ad space · openAdvertise here
A Featured spot on this hvac page for Windsor 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 contractorsOrder: A–Z by business name (neutral, stated). Showing 1–11.
APEX HEATING & AIR
C-20 · Lic. #1112541 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BIGHAM HOME SERVICES
C-20 · also B, C-10, C-36, C-43 · Lic. #1109652 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FRANCO'S MECHANICAL
C-20 · Lic. #962011 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HAYMAN REFRIGERATION & AIR CONDITIONING
C-20 · also C-38 · Lic. #913517 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HENRY MECHANICAL
C-20 · also C-10, C-36, C-43, C-46 · Lic. #855174 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LELAND PLUMBING HEATING & AIR COND
C-20 · also C-36 · Lic. #848071 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
OLD REDWOOD HEATING AND COOLING
C-20 · Lic. #1147019 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SAME DAY HEATING, COOLING & PLUMBING
C-20 · also C-10, C-36 · Lic. #1113715 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SHAWN B JOHNSON HEATING AND COOLING
C-20 · Lic. #912855 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WATERWORKS INDUSTRIES LLC
C-20 · also A, B, C-10, C-16… · Lic. #1137599 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WINE COUNTRY HEATING & AIR CONDITIONING
C-20 · Lic. #1115888 · Windsor 95492
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026