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Derek Dunbar
Sep 2019

Your Premier Partner for Residential & Commercial Energy Verification

Home Energy Rating Service serves as the definitive authority on energy compliance and system verification for the Downey, California community. As the cradle of the Apollo space program, Downey has a long-standing legacy of engineering excellence and innovation. Today, that legacy continues in the built environment, where modern construction must meet the rigorous standards of California’s Energy Code Compliance (ECC) Program. Whether you are revitalizing a mid-century home in Northeast Downey, constructing an accessory dwelling unit (ADU) near Furman Park, or managing a commercial retrofit along the bustling Firestone Boulevard corridor, we act as your dedicated bridge between complex Title 24 regulations and your final Certificate of Occupancy.

We are a well-established and reputable home energy rating service that takes immense pride in our role within the Downey construction and real estate sectors. We understand that in a thriving city like Downey—home to major medical centers and a vibrant downtown—construction delays are costly. Therefore, we prioritize technical precision, clear communication, and prompt scheduling to ensure your project inspections are completed efficiently. As a locally owned and operated business, we possess specialized knowledge of Climate Zone 9, ensuring that your building systems are optimized to handle the region’s hot summers while strictly adhering to the City of Downey Building Division’s requirements.

Why Downey Builders & Homeowners Choose Us

  • Licensed, Insured & Bonded: In the high-stakes world of construction and real estate, risk management is paramount. We carry significant liability coverage ($1,000,000) to protect our residential and commercial clients. This provides absolute peace of mind, knowing that a professional, fully insured entity is handling the diagnostic testing on your property.
  • Certified Experts: Our technical team consists of California Energy Commission (CEC) certified professionals. We undergo continuous training to stay ahead of the evolving Energy Code, ensuring we are experts in both the Residential Energy Services Network (RESNET) standards and the modern ECC protocols.
  • Quality Staff: We believe that technical expertise must be paired with exceptional service. We hire only quality, trusted, and reliable staff who treat your property with respect, arrive on schedule, and manage your compliance documentation with the utmost professionalism and discretion.
  • Full Spectrum Service: Our capabilities are not limited by project size. From single-family renovations and multi-family complexes to large-scale medical office buildings and retail centers, we have the advanced equipment and personnel to verify it all.

From the initial review of your Title 24 energy calculations to the final HERS testing service and permit sign-off, we invite you to experience the superior standard of care at Home Energy Rating Service. Contact us today to secure your compliance certification.

Downey ECC Testing & HERS Services

Streamlining Your Path to Efficiency, Compliance, & Occupancy

Navigating the modern building landscape requires a deep, working knowledge of the Energy Code Compliance (ECC) Program. This regulatory framework is designed to ensure that new and altered buildings meet specific energy efficiency standards before they can be legally occupied. Our team provides the essential ECC testing service required by the City of Downey. We act as objective third-party verifiers, conducting the necessary field diagnostic tests to prove that your construction aligns perfectly with the energy design calculations submitted during the plan check process.

Assessing Energy Efficiency Our certified raters utilize the Energy Rating Index and verified ECC methodologies to strictly evaluate your property’s performance. We provide a precise numerical score that rates a building’s energy efficiency. This ECC rating functions similarly to a miles-per-gallon sticker for a vehicle; a lower score indicates a higher level of efficiency. In Downey’s competitive real estate market, a verified low energy score is a proven asset. It signals to potential buyers that the home is modern, comfortable, and will require significantly less money to operate over its lifespan.

Residential Solutions: Optimized for Comfort & Savings For homeowners in Downey, our HERS testing service is designed to identify invisible energy drains that compromise comfort and inflate utility bills. We look beyond the surface to ensure the “house as a system” is functioning correctly, particularly during the warm summer months.

  • Duct Leakage Testing: Leaky ducts are one of the most significant sources of energy waste in older Downey homes. We use calibrated duct pressurization fans to measure exactly how much conditioned air is escaping into attics or crawlspaces. Sealing these leaks ensures you get the cooling you pay for and protects your home from dust infiltration.
  • Refrigerant Charge Verification: An air conditioner that is under-charged or over-charged will struggle to cool the home and will fail prematurely. Our non-invasive testing ensures your system meets the manufacturer’s precise specifications for subcooling and superheat, guaranteeing peak efficiency when you need it most.
  • Airflow & Fan Watt Draw: We measure the airflow across the evaporator coil and the energy consumption of the furnace fan. This ensures the system moves enough air to condition the home without using excessive electricity, a critical factor for passing Title 24.
  • Indoor Air Quality (IAQ) Verification: Modern energy-efficient homes require mechanical ventilation to ensure fresh air. We verify that bathroom fans and kitchen range hoods meet the ASHRAE standards for airflow, ensuring a healthy indoor environment free of moisture, mold potential, and cooking pollutants.
  • Quality Insulation Installation (QII): We inspect insulation at the framing stage to ensure there are no gaps, voids, or compressions. This is critical for maintaining a consistent thermal barrier and is often a mandatory requirement for additions and new builds to meet compliance.

Commercial Verification: Serving Medical & Retail Sectors We offer a full suite of commercial services to support general contractors, business owners, and facility managers in Downey. Given the city’s robust medical and retail economy, ensuring HVAC performance is critical for business operations.

  • Commercial Air Balancing: In medical offices and retail spaces, uneven temperatures can lead to patient discomfort and employee complaints. We perform precise air balancing to ensure every register delivers the correct volume of air, optimizing the comfort and safety of the environment.
  • Mechanical Acceptance Testing: California Title 24 requires “Acceptance Testing” for lighting controls and mechanical systems in non-residential buildings. Our certified technicians verify that economizers, variable frequency drives, and demand-control ventilation systems operate as designed.
  • System Performance Evaluation: We conduct comprehensive audits of existing commercial HVAC systems to identify inefficiencies. This preventative approach helps business owners avoid costly emergency repairs and extends the lifespan of expensive mechanical equipment.

Promoting Sustainable Building Practices Our testing services are a fundamental component of the green building movement. A verified home energy score encourages the construction of homes that consume significantly less energy, thereby reducing carbon footprints and promoting environmental stewardship. By validating that high-performance systems—such as high-efficiency heat pumps, tankless water heaters, and solar photovoltaic arrays—are installed correctly, we ensure your building contributes to a sustainable future for Downey. We help builders bridge the gap between architectural intent and actual building performance.

Incentives and Rebates Achieving high performance through ECC testing is financially rewarding beyond just lower monthly operational costs. Utility companies like Southern California Edison (SCE) and SoCalGas often offer substantial rebates, tax credits, and financing incentives for properties that exceed standard efficiency benchmarks. A professional HERS rating in Downey is often the mandatory documentation required to claim these valuable financial incentives for upgrades like high-performance windows, attic insulation, and electric heat pumps. We assist you in gathering the necessary data to maximize your return on investment.

Our Core Diagnostic Services

  • Duct Testing: Verifying airtightness to prevent energy loss and contaminant infiltration.
  • Refrigerant Charge Measurement: Ensuring A/C units and heat pumps run at factory-specified efficiency.
  • Air Balancing: Optimizing airflow distribution for commercial comfort and system longevity.
  • Title 24 Consulting: Expert guidance on compliance forms like CF-1R, CF-2R, and CF-3R.
  • Blower Door Testing: Measuring whole-house air leakage to validate the building envelope’s tightness.
  • Permit Expediting: Assisting clients in navigating the bureaucratic process with the City of Downey to close out permits faster.

Common Questions About Energy Compliance

What is the Energy Code Compliance (ECC) Program? The ECC Program refers to the comprehensive set of standards (such as Title 24 in California) designed to reduce energy consumption in residential and non-residential buildings. It mandates independent verification by a certified ECC testing service to ensure that the installed energy features meet the approved energy design. This program moves beyond simple component inspection to verify total system performance.

Do you perform air balancing for commercial buildings? Yes. We offer comprehensive commercial services, including air balancing, system performance verification, and mechanical acceptance testing for retail locations, restaurants, medical buildings, and office spaces in Downey. Proper air balancing is critical for maintaining building pressure, ensuring proper ventilation, and maximizing the efficiency of commercial HVAC units.

What is the difference between HERS testing and ECC testing? These terms are often used interchangeably as the industry transitions its terminology. HERS (Home Energy Rating System) is the legacy term referring specifically to the rating scale and the rater. ECC testing refers to the broader verification activities required to meet the modern Energy Code Compliance Program standards. Our company is certified to perform both, ensuring you meet all regulatory definitions.

Why is an ECC rating important? An ECC rating or HERS rating is typically required by the Downey Building Division to finalize a building permit. It serves as proof that the home’s energy features (HVAC, insulation, windows, water heating) were installed correctly and perform as promised in the energy calculations. Without this rating and the accompanying certification forms, a Certificate of Occupancy cannot be issued.

What happens if my home fails the test? If a system fails a diagnostic test, such as having too much duct leakage, our raters provide immediate, actionable feedback. We can identify exactly where the failure is occurring (e.g., a disconnected return duct or a leaking plenum). We communicate this to your contractor so repairs can be made promptly. Once the repairs are completed, we re-test the system to verify compliance.

Are you insured? Yes, Home Energy Rating Service is fully licensed, bonded, and insured. We carry comprehensive liability insurance to protect our clients and their properties during all inspections and testing procedures. We are happy to provide proof of insurance to general contractors and homeowners upon request.

How do I prepare for a HERS/ECC test? To ensure a smooth testing process, please ensure that all HVAC equipment is accessible, power is available to the unit, and that all registers and grilles are installed. For new construction, the “rough” inspection should happen before drywall is installed to check ducts, while the “final” inspection occurs when the system is fully operational. Our team will guide you through the specific checklists when you book your appointment.

Home Energy Rating Service (805) 551-1050