AJ Energy Raters

Energy Code Compliance (ECC) Rater – California

CHEERS-certified ECC Rater providing comprehensive energy compliance and field verification services for California homes.

Smarter energy verification. Faster compliance.

CHEERS-certified ECC Rater

Smarter Energy Ratings. Faster Compliance.

AJ Energy Raters is a California Energy Code Compliance (ECC) Rater certified through CHEERS to provide field verification and diagnostic testing under the 2025 Title 24 Energy Code (effective January 1, 2026).

ECC Raters (formerly known as HERS Raters) conduct energy compliance tests, verifications, and documentation needed for residential new construction, additions, alterations, HVAC change-outs, and ADUs.

Our team delivers professional, accurate, and timely energy verification services to builders, contractors, and homeowners, helping ensure your project meets Title 24 requirements efficiently and inspection-ready.

Our ECC Verification Services

Note: Under the 2025 Title 24 Energy Code, diagnostic tests and field verification formerly referenced as HERS services are now performed under the Energy Code Compliance (ECC) Program. California Energy Commission

Why Choose AJ Energy Raters

Certified ECC Rater under the 2025 Title 24 Energy Code

Accurate, code-compliant testing and verification

Clear communication with contractors and AHJs

Fast scheduling and timely documentation turnaround

Fully insured and EPA Section 608 certified

Local California focus with statewide compliance expertise

Who Needs an ECC Rater?


An ECC Rater is required for many residential projects in California, including:

  • New residential construction
  • Additions and major alterations
  • ADUs
  • HVAC replacements and duct modifications
  • Insulation and window upgrades

For projects starting after January 1, 2026, ECC Rater verification is required under the new Title 24 compliance program. California Energy Commission

Service Areas

Schedule Your ECC Inspection

Reliable. Responsive. Code-Compliant. Certified ECC testing. Done fast.

Trust and Certifications

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