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Licensed HVAC Contractors in Oakland, California

Updated November 1, 2026 from CSLB's public license file · C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor

  • 50licensed HVAC contractors
  • 50active (Clear)
  • 0%with a suspension
  • 0%workers' comp exempt
  • 10.5 yrsmedian time licensed
  • 62%corp / LLC / partnership (38% sole owner)
  • 3new in the last 12 months
  • —change tracking began November 1, 2026

CSLB's public data lists 50 HVAC contractors with a mailing address in Oakland, and 50 of them (100%) show a Clear primary status.

The share with a suspension, 0%, is 4.4 points lower than the Alameda County rate for the same license (4.4%). About 0% report a workers' comp exemption, roughly the statewide norm for HVAC contractors.

Experience varies: 56% have been licensed 10+ years and 3 are new this year (median 10.5 years, vs 11.6 statewide).

In California this work generally calls for the C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor license (or a B license when it is part of a larger multi-trade job). See the C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor guide for what the license covers.

How to check a HVAC contractor's license in Oakland

  1. Find the business in the list below, or search all 50 Oakland listings, and open its profile. You want a Clear status and the C-20 classification (a B license can also cover it as part of a multi-trade job).
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed HVAC contractor is required by law. See the $1,000 rule.

All 50 HVAC contractors in Oakland

Oakland HVAC contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed HVAC contractors in Oakland
Business nameLicense #StatusYearsWorkers' compBond
Campbell J M Company INC 384593 Clear 47 Insured On file
Monterey Mechanical CO 388361 Clear 46 Insured On file
Chief's Refrigeration Air 447976 Clear 43 Insured On file
Atlas Heating & Air-Conditioning CO 489501 Clear 40 Insured On file
Heating Experts 489735 Clear 40 Insured On file
Stine Builders 497655 Clear 40 Insured On file
Li Yen Lin Company INC 530114 Clear 38 Insured On file
Alaska Refrigeration Air Conditioning & Heating CO 565401 Clear 37 Insured On file
Mauck Sheet Metal 582359 Clear 36 Insured On file
All Seasons Heating & Air Conditioning 587252 Clear 36 Insured On file
Broadway Mechanical - Contractors INC 584263 Clear 36 Insured On file
D P Heating & Air Conditioning 636826 Clear 34 Insured On file
Modern Heating and Air Conditioning 685104 Clear 32 Insured On file
Monarch Mechanical 736565 Clear 29 Insured On file
Clark Harry Plumbing and Heating INC 792463 Clear 25 Insured On file
Lias Mechanical INC 817456 Clear 23 Insured On file
Ehret CO Plumbing 834005 Clear 22 Insured On file
Supreme Climate Control 842936 Clear 22 Insured On file
Kci 874124 Clear 20 Insured On file
Olympic Heating and Air 918993 Clear 18 Insured On file
Breathable 979977 Clear 13 Insured On file
Seaside Refrigeration 981257 Clear 13 Insured On file
Ease H V A C 990471 Clear 12 Insured On file
Element Heating and Air 997392 Clear 12 Insured On file
Carter's Heating & Air 1013227 Clear 10 Insured On file
Elden Plumbing INC 1015348 Clear 10 Insured On file
Advanced Refrigeration 1017769 Clear 10 Insured On file
Energreen Mechanical 1017148 Clear 10 Insured On file
Attic Pros INC 1022608 Clear 9 Insured On file
Care Heating & Air Conditioning INC 1023652 Clear 9 Insured On file
Eco Energy Bay Area 1025592 Clear 9 Insured On file
Ambient Experts HVAC 1049324 Clear 7 Insured On file
HVAC Oren Services LLC 1048662 Clear 7 Insured On file
Johnson's Insulation 1051108 Clear 7 Insured On file
Harry Clark Heating & Air Conditioning INC 1056105 Clear 7 Insured On file
Daniel's Heating & A/C 1059101 Clear 7 Insured On file
Monterey and Mwh Constructors, A Joint Venture 1063926 Clear 6 Insured On file
Broadway Mechanical-Big Pipe Joint Venture 1074845 Clear 5 Insured On file
California HVAC 1085458 Clear 4 Insured On file
HVAC Panda Home Wizards Remodeling & Construction 1091692 Clear 4 Insured On file
Velasco's Heating and Air Conditioning 1091060 Clear 4 Insured On file
Red Fox Heating & Cooling 1095334 Clear 4 Insured On file
Tom's Refrigeration HVAC INC 1109609 Clear 3 Insured On file
Asap Rodent & Remodeling Solutions 1126406 Clear 2 Insured On file
Bv Mechanical Services LLC 1134400 Clear 1 Insured On file
R Powell Mechanical 1139432 Clear 1 Insured On file
J&K Sheetmetal CO 1141718 Clear 1 Insured On file
Heavenly Heating & Air INC 1146424 Clear 1 Insured On file
Mihas HVAC INC 1149214 Clear <1 Insured On file
Nestly Heating and Cooling 1158214 Clear <1 Insured On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed HVAC contractors are in Oakland?

CSLB's current public file lists 50 HVAC contractors with a Oakland mailing address. 50 have a Clear status, and 94% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a HVAC contractor need in California?

CSLB issues the C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor classification for this work. In Alameda County, 100% of Oakland's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).

How do I check a HVAC contractor's workers' comp?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Oakland, 100% of HVAC contractors list a policy, 0% claim an exemption and 0% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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Guides