ECC / HERS Testing & Verification
Energy Code Compliance (ECC) and Home Energy Rating System (HERS) verification are state-mandated field tests enforcing California’s stringent Title 24 Building Energy Efficiency Standards. As certified ECC-Raters, Pacific Airflow provides independent diagnostic testing—including duct leakage pressurization, building envelope blower door testing, and QI insulation verification—for both commercial alterations and residential builds.
California law prohibits ECC-Raters from having financial ties to the installing contractor or equipment provider. Pacific Airflow guarantees 100% impartial testing recognized by every municipal building department.
Expert Energy Code Compliance & Certified HERS Rating
California's Title 24 Energy Standards mandate that newly installed or altered mechanical systems meet stringent efficiency baselines. Field studies revealed that unverified duct systems leak up to 30% of conditioned air into unconditioned attics or crawlspaces, and improper refrigerant charging reduces equipment lifespans while inflating monthly utility costs.
Pacific Airflow provides certified, third-party Energy Code Compliance (ECC) and HERS rating throughout Northern California. We use calibrated duct blasters, blower doors, and digital gauges to verify duct tightness, building envelope infiltration, and airflow across cooling coils.
Our ECC / HERS Testing services include:
- Duct pressurization leakage testing
- Blower door whole-building envelope infiltration testing
- Fan efficacy (Watts/CFM) and minimum system airflow rate measurements
- QII (Quality Insulation Installation) inspection and testing
- Blower door testing
- Electronic registration with the CHEERS state HERS registry
When to Schedule HERS Testing in Northern California
Permitted HVAC projects require state-registered HERS sign-off before municipal inspectors finalize permits. Here is when you need Pacific Airflow.
Residential & Commercial HVAC Replacements
Replacing a split heat pump, furnace, or packaged unit under city or county permits requires duct leakage testing (typically ≤ 15% or ≤ 6% depending on alteration scope).
New Construction, ADUs & Room Additions
New builds require complete Title 24 verification including duct leakage to outside (≤ 4%), blower door envelope testing, and indoor air quality (IAQ) ventilation CFM.
Permit Closeouts & Real Estate Escrow Deadlines
Open HVAC permits held up by missing registry certificates can halt property sales. We provide rapid dispatch and same-day electronic uploads to clear open files.
How Northern California Climate Zones Impact HERS Requirements
California's 16 Climate Zones carry varying HERS triggers. In Climate Zone 11 (Chico, Redding, Red Bluff, Sacramento), extreme summer heat makes refrigerant charge and fan watt draw testing mandatory for most central cooling alterations. In coastal and mountain zones, envelope leakage thresholds take priority.
Zone 11 Valley Mandates
High summer ambient temperatures mandate refrigerant verification to prevent compressor overheating and guarantee rated capacity.
Mountain Envelope Testing
High-elevation winter heating zones enforce strict blower door envelope infiltration limits to prevent catastrophic heat loss.
Get in Touch
Ensure fast permit closeout and certified HERS rating across 11 Northern California counties.
(530) 864-5042Electronic compliance certificates uploaded directly to the CHEERS state HERS registry within 24 hours of passing.
Our HERS Testing Process
Pacific Airflow follows a systematic procedure that ensures exact compliance and prompt municipal permit sign-off.
Permit & CF1R Review
We review building permit records and CF1R/NRCC compliance documents to identify the exact Title 24 verification measures required.
Diagnostic Field Testing
Our certified ECC-Rater arrives on-site with calibrated duct blaster fans, digital manometers, and diagnostic instruments to perform physical testing.
Leak Pinpointing & Help
If duct leakage exceeds threshold, we use acoustic and smoke diagnostics to show your crew the exact boot or joint to seal, enabling same-day pass.
Electronic Registry Upload
We sign and transmit the official CF3R certificates directly to the CHEERS state HERS registry for immediate building inspector verification.
Why Choose Us for ECC / HERS Testing
Contractors, HVAC installers, and homeowners across 11 Northern California counties rely on Pacific Airflow.
Certified Independent Rater
California law strictly prohibits ECC-Raters from having financial stakes in installations. We provide 100% neutral verification that inspectors accept without hesitation.
Same-Day & Flexible Booking
Urgent municipal inspection deadlines need rapid response. We provide flexible booking across Butte, Shasta, Tehama, Glenn, and Sacramento regions.
Fast Electronic Registry Uploads
CF3R certificates uploaded directly into the CHEERS state HERS registry within 24 hours of passing, ensuring your building permit closes cleanly.
Frequently Asked Questions About HERS Testing
Click any question to view duct blast, blower door, and Title 24 registry requirements.
Schedule HERS / Energy Code Testing
Get fast, certified Title 24 verification and registry sign-off. We respond within hours with transparent pricing.