HERS/ECC Testing Services
HERS Verification for New Construction & ADUs in Stockton, CA
Certified HERS/ECC field verification for new homes, ADUs and HVAC changeouts — so your project passes final inspection without delays.
Our Commitment
Reliable HERS/ECC Testing Support
We handle every required HERS measure on your CF2R, perform the field verification, and register the CF3R so your inspector has what they need.
California Energy Code Guidance
Stay compliant with the latest Title 24 requirements.
Accurate Documentation & Reports
Receive detailed reports and verified results.
Support for New Construction & ADUs
From single-family homes to ADUs, we've got you covered.
Our Services
HERS/ECC Testing Services We Provide
Comprehensive compliance services for residential and commercial projects.
New Home Verification
Complete HERS field verification for single-family new construction.
Learn MoreADU Compliance
Verification for attached and detached accessory dwelling units.
Learn MoreHVAC Changeouts
Testing required when replacing or altering HVAC equipment and ducts.
Learn MoreCF3R Registration
Registered certificates submitted to the HERS provider registry.
Learn MoreWhen Do You Need
HERS Verification?
HERS verification is required when your Title 24 compliance documents list measures that must be field-verified — common on new homes, ADUs and HVAC system changeouts.
Why Choose Cobros Energy Solutions?
Why Choose Cobros Energy Solutions for HERS/ECC Testing?
We're more than just a testing company — we're your energy compliance partner. Our team is committed to delivering accurate testing, clear documentation and dependable service.
- Certified and Experienced Technicians
- Accurate & Reliable Testing Equipment
- Fast Turnaround and Detailed Reports
- Friendly & Professional Support
- Stockton & Central Valley Coverage
Request a Quote
Fill out the form below and our team will get back to you shortly.
Our Service Areas
Our Local Service Areas
We proudly serve Stockton and surrounding areas, including the Central Valley and beyond.
- Stockton
- Lodi
- Manteca
- Lathrop
- Tracy
- Modesto
- Turlock
- Merced
- Fresno
- Sacramento
- Elk Grove
- Roseville
- Livermore
- Pleasanton
Frequently Asked Questions
Common Questions About HERS/ECC Testing
What is a HERS rater?
A HERS (Home Energy Rating System) rater is a certified third party who field-verifies that energy measures on your project were installed and perform as required by California's energy code.
When should I schedule HERS testing?
Schedule once the HVAC system is fully installed and operational, and before the final building inspection. Some measures, like insulation, are verified earlier during construction.
Do ADUs need HERS verification?
Most new ADUs with heating or cooling systems require HERS verification of measures such as duct leakage, airflow and refrigerant charge.
What happens if my system fails a test?
We explain exactly what failed and why. Once your contractor makes corrections, we retest and complete the verification.
Ready to Get Started?
Need Help With HERS/ECC Testing?
Get expert guidance, accurate testing and complete documentation for your project.