HVAC contractor (C-20) in Antioch, CA
7 licenses · checked Oct 27, 2026
There are 7 HVAC contractor (C-20) licenses with an address of record in Antioch, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.4% of the 1,847 such licenses statewide; Antioch ranks #66 of 425 CA cities for this license type. They are spread across 2 ZIP codes; the most common are 94509 (4), 94531 (3). Most list Contra Costa County. By business type: Corporation 4, Sole Owner 3. The median first-issue year is 2019; the oldest license dates from 2015. 5 of them come up for renewal or expiration in the next 12 months, so re-check status before you sign a contract.
What a HVAC contractor (C-20) license covers
Warm-Air Heating, Ventilating and Air-Conditioning (C-20) covers furnaces, heat pumps, air-conditioning units, ducts and ventilation systems.
How to verify a license
Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Official lookup: CSLB Instant License Check.
HVAC contractor (C-20) licenses in Antioch
Showing 7 of 7, A to Z. Listing order is alphabetical, not a recommendation.
- Alfa Heating AND Cooling#1026386 · 94509
- ASM Mechanical Services#1051854 · 94531
- Hvac Replacement Services#1006208 · 94509
- Keeney H V A C#1056961 · 94509
- MDB Same DAY Hvac INC#1057681 · 94531
- Perfect Star Heating Cooling & Electrical#1022101 · 94509
- Phillips Mechanical INC#1053355 · 94531
Frequently asked questions
How many HVAC contractor (C-20) licenses are in Antioch?
7 active licenses in the CSLB License Master data checked Oct 27, 2026 (0.4% of CA).
What does a HVAC contractor (C-20) license cover?
Warm-Air Heating, Ventilating and Air-Conditioning (C-20) covers furnaces, heat pumps, air-conditioning units, ducts and ventilation systems.
How do I verify a HVAC contractor (C-20) license in Antioch?
Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Use the license number shown here with the CSLB Instant License Check.
How many Antioch HVAC contractor (C-20) licenses expire soon?
5 of 7 have an expiration date in the next 12 months. A license that lapses must be renewed before the holder can work under it again.
Other license types in Antioch
General building contractor (30) · Electrical contractor (C-10) (16) · Painting contractor (C-33) (8) · Landscaping contractor (C-27) (8) · Plumbing contractor (C-36) (7) · Flooring contractor (C-15) (6) · Tile contractor (C-54) (4) · Roofing contractor (C-39) (3)
All HVAC contractor (C-20) licenses in CA →
Source: CSLB License Master. Licensed California is independent and not affiliated with the licensing agency. Data checked Oct 27, 2026.