HVAC contractor (C-20) in Napa, CA
4 licenses · checked Oct 27, 2026
There are 4 HVAC contractor (C-20) licenses with an address of record in Napa, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.2% of the 1,847 such licenses statewide; Napa ranks #148 of 425 CA cities for this license type. They are spread across 2 ZIP codes; the most common are 94558 (3), 94858 (1). Most list Napa County. By business type: Corporation 3, Sole Owner 1. The median first-issue year is 2019; the oldest license dates from 2018. 2 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 Napa
Showing 4 of 4, A to Z. Listing order is alphabetical, not a recommendation.
- Adameck Hvac INC#1035976 · 94858
- Jordan Mechanical INC#1054471 · 94558
- JRE Heating AND AIR#1064819 · 94558
- Z S Heating AND AIR INC#1050971 · 94558
Frequently asked questions
How many HVAC contractor (C-20) licenses are in Napa?
4 active licenses in the CSLB License Master data checked Oct 27, 2026 (0.2% 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 Napa?
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 Napa HVAC contractor (C-20) licenses expire soon?
2 of 4 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 Napa
General building contractor (64) · Electrical contractor (C-10) (14) · Painting contractor (C-33) (11) · Landscaping contractor (C-27) (8) · General engineering contractor (6) · Plumbing contractor (C-36) (6) · Tile contractor (C-54) (3) · Concrete contractor (C-8) (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.