Multifamily ECC Verifications

Pictured: Harrington Heights in San Diego, photo provided by Royal Property Management Group

Formerly known in California as the Home Energy Rating System (HERS), the updated Energy Code Compliance (ECC) Program is a required compliance process used to verify that building systems—such as ducts, HVAC, or insulation —meet California Energy Code (Title-24, Part 6) standards. As certified ECC-Raters, we verify and test new construction, alterations, and additions across residential and nonresidential development.

We specialize in the following Multifamily ECC Verifications and Tests:

  • Duct Leakage Testing: Measures air leakage in the duct system to verify compliance with California Energy Code requirements and ensure efficient HVAC performance.
  • Whole-House Ventilation / Indoor Air Quality (IAQ): Verifies that mechanical ventilation systems provide the required outdoor air rates to support healthy indoor air quality.
  • High-performance Attic/Wall Inspections: Inspects building envelope assemblies to confirm proper installation of insulation, air barriers, and energy-efficiency measures.
  • Refrigerant Charge & Airflow Verification: Confirms that HVAC systems have the correct refrigerant charge and airflow to operate efficiently and as designed.
  • Fan Watt Draw/Efficacy: Measures HVAC fan energy consumption and airflow performance
  • Existing Conditions Documentation: Documents existing building, mechanical, and energy-related conditions to support alterations, retrofits, and code compliance verification.
  • Quality Insulation Installation (QII): Verifies that insulation is installed to industry standards with proper alignment, coverage, and minimal gaps or compression.
  • Domestic Hot Water System Verification: Confirms that water heating systems, piping, and other components meet applicable energy code requirements.
  • Compartmentalization Blower Door Testing (Multifamily and Commercial): Measures air leakage between units and building compartments to verify energy efficiency and enclosure performance.
  • CF-3R Compliance Documentation via CHEERS: Submission of certified third-party verification and registration of required energy compliance measures through the CHEERS registry.

As a certified multifamily and nonresidential ECC-Rater, we can support those projects aiming to achieve beyond the CA Energy Code. We can verify and consult projects to achieve high performance-based ratings and certifications such as Energy Star, Zero Net Energy, LEED for Homes, GreenPoint Rating, and CalGreen. These high performance standards require a specialized expertise of which we have conducted for over 200 multifamily projects throughout Southern California and neighboring states.

Our Expertise in Multifamily ECC Verifications

We are a trusted ECC-Rater for new construction, alteration, and addition multifamily developments throughout Southern California. We’ve been successfully supporting multifamily projects to the finish line for almost a decade and under various building types, square feet, and standards. We are experienced in conducting 100% or group sample verifications depending on the development’s requirements. After conducting our field tests, we’ll complete and submit the required certifications in the data registries. The certifications depend on the services, project size, and sampling procedures performed and could be either CF3R, LMCV, or NRCV. 

Exterior photo of the Third Thyme multifamily housing in Los Angeles, CA. Services provided here include ECC (HERS) testing for LEED such as blower door testing and duct leakage test.
Third Thyme, Los Angeles, CA; 104 units under LEED GOLD

We are a trusted ECC-Rater for new construction, alteration, and addition multifamily developments throughout Southern California. We’ve been successfully supporting multifamily projects to the finish line for almost a decade and under various building types, square feet, and standards. We are experienced in conducting 100% or group sample verifications depending on the development’s requirements. After conducting our field tests, we’ll complete and submit the required certifications in the data registries. The certifications depend on the services, project size, and sampling procedures performed and could be either CF3R, LMCV, or NRCV. 

Exterior photo of the Third Thyme multifamily housing in Los Angeles, CA. Services provided here include ECC (HERS) testing for LEED such as blower door testing and duct leakage test.
Third Thyme, Los Angeles, CA; 104 units under LEED GOLD

Our Impact

ECC Ratings can make the difference in whether a project gets delayed or receives its desired certification. Successful ECC-Raters can ensure a project meets compliance and its designed performance, saving general contractors and developers budget and energy costs during construction and operation. Successfully conducting ECC verifications at 200+ multifamily projects has made our experience unique in the residential construction industry. We’re well equipped to handle various multifamily projects and get the project move-in ready for tenants and occupants.

  • Save energy costs
  • Extend equipment and systems lifetimes
  • Comfortable living spaces
  • Verify LEED, ENERGY STAR, and other certifications
  • Verify Code Compliance and avoid costly delays

Multifamily Acceptance Testing or ECC Verifications

Depending on the multifamily project’s energy configurations, the project may require either ECC Verifications or Acceptance Testing. We are uniquely qualified to conduct both of these requirements as Mechanical Acceptance Test Technicians and ECC-Raters. When called upon to provide our services, we’ll complete the field verifications and tests and submit the required verification or acceptance tests certifications.

Want to know more about our Multifamily ECC Verifications?

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Our Multifamily ECC Verifications in Action