How many C20 hvac contractors are licensed in California?

California has 12,687 contractors with a C20 (HVAC) license from the Contractors State License Board. 11,795 (93%) hold active licenses. SiteVetter's C20 license lookup checks each against SAM.gov, OSHA, DOL, and EPA databases.

What does a C20 license cover in California?

A California C20 license covers heating, ventilation, and air conditioning contractors. Any contractor performing hvac work valued at $500 or more must hold this license. The CSLB issues and regulates all contractor licenses in the state.

What percentage of hvac contractors have federal violations?

3.1% of California hvac contractors (396 out of 12,687) have at least one record in federal databases. These include SAM.gov debarments, DOL wage violations, OSHA safety citations, and EPA environmental violations.

C20 HVAC Contractors in California - Page 4 | CSLB License Lookup

C20 HVAC Contractor License Lookup

Use this page when you need a California C20 license lookup, a list of licensed hvac contractors, or a quick screen before assigning hvac work to a sub. Each row links to a contractor profile with CSLB status, workers' comp, bond, federal records, and permit checks.

California has 12,687 CSLB C20 license records for hvac contractors. 93% currently hold active licenses and 3.1% have at least one federal compliance record. SiteVetter checks CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, EPA environmental records, and building permits in seconds.

What to Check for C20 HVAC Contractors

Verify NATE certification for technicians working on your system
Ask about experience with your specific HVAC brand or system type
Confirm they can provide energy efficiency calculations for new installations
Check federal databases: SAM.gov, OSHA, DOL, and EPA records
Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Federal Records Matter for HVAC Work

For hvac work, 3.1% of licensed contractors have federal records that a standard CSLB license check would not reveal. SiteVetter's 6-source lookup gives GCs a faster way to compare subs before bid award, onboarding, or renewal review.

C20 HVAC Contractors in California - Page 4

CSLB C20 License Scope

C20 HVAC Contractor License Records

C20 HVAC Contractor License Lookup

What to Check for C20 HVAC Contractors

Why Federal Records Matter for HVAC Work