How many weatherization contractors are licensed in California?

California has 81 contractors with a D65 (Weatherization) license from the Contractors State License Board. 77 (95%) hold active licenses. SiteVetter checks each against SAM.gov, OSHA, DOL, and EPA databases.

What does a D65 license cover in California?

A California D65 license covers weatherization and energy conservation contractors. Any contractor performing weatherization work valued at $500 or more must hold this license. The CSLB issues and regulates all contractor licenses in the state.

What percentage of weatherization contractors have federal violations?

11.1% of California weatherization contractors (9 out of 81) have at least one record in federal databases. These include SAM.gov debarments, DOL wage violations, OSHA safety citations, and EPA environmental violations.

Verify Weatherization Contractors (D65) | CSLB + Federal Check

How to Verify a Weatherization Contractor (D65) in California

California requires all contractors performing weatherization work valued at $500+ to hold a valid CSLB D65 license. Of the 81 licensed weatherization contractors in the state, 95% currently hold active licenses and 11.1% have at least one federal compliance record.

Manual vetting takes 45+ minutes per contractor and routinely misses violations in databases most people don't know to check. SiteVetter runs CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, and EPA environmental records in seconds—creating a timestamped compliance artifact.

Verification Checklist for Weatherization Contractors

Verify the contractor license is active and in good standing
Request proof of insurance and bonding
Get at least 3 written quotes before selecting a contractor
Check federal databases: SAM.gov, OSHA, DOL, and EPA records
Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for Weatherization Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For weatherization work specifically, 11.1% of licensed contractors have federal records that a standard CSLB license check wouldn't reveal. SiteVetter's 5-database check catches what a single-source verification misses.

Weatherization Contractor Verification

About D65 License

Weatherization Contractors

How to Verify a Weatherization Contractor (D65) in California

Verification Checklist for Weatherization Contractors

Why Verification Matters for Weatherization Work