California › Contra Costa County › HVAC › Walnut Creek
Licensed HVAC contractors in Walnut Creek
14 contractors with a Walnut Creek 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. 14 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 Walnut Creek 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 Walnut Creek 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 14 licensed HVAC contractors
Order: A–Z by business name (neutral, stated). Showing 1–14. AIR - CON MECHANICAL SERVICES INC
C-20 · also C-10, C-36 · Lic. #636428 · Walnut Creek 94596
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AIR MEN HEATING AND AIR CONDITIONING
C-20 · Lic. #955367 · Walnut Creek 94596
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AIRBEE
C-20 · Lic. #1160508 · Walnut Creek 94598
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ALL BAY HEATING AIR CONDITIONING & CONSTRUCTION INC
C-20 · also B, C-36 · Lic. #805473 · Walnut Creek 94595
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
AMERICAN MECHANICAL; IQ CONTROLS
C-20 · also C-4, C-38, C-43 · Lic. #883177 · Walnut Creek 94595
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
APEX AIR
C-20 · Lic. #1123268 · Walnut Creek 94596
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DIABLO THERMAL SYSTEMS INC
C-20 · also C-38 · Lic. #823200 · Walnut Creek 94598
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ECO PERFORMANCE BUILDERS INC
C-20 · also B, C-2 · Lic. #944856 · Walnut Creek 94597
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FREEMAN'S HEATING AIR CONDITIONING & ELECTRICAL SERVICES
C-20 · also C-10, C-36 · Lic. #519835 · Walnut Creek 94595
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GRACE HEATING AND AIR INC
C-20 · Lic. #705148 · Walnut Creek 94598
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HEARTHSTONE BUILDING & RESTORATION
C-20 · also B, C-10, C-36 · Lic. #319036 · Walnut Creek 94598
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
NORTH STAR HEATING & COOLING
C-20 · Lic. #1142423 · Walnut Creek 94596
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
POLARTECH LLC
C-20 · Lic. #1114751 · Walnut Creek 94596
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
TOWER & SCRUBBER SOLUTIONS LLC
C-20 · Lic. #1156939 · Walnut Creek 94598
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026