Your HERS Score is a numerical measure of your home’s energy efficiency. The lower the score, the more energy-efficient the home. Whether you’re a builder, architect, homeowner, or buyer, understanding your score helps you make informed decisions about energy use, comfort, and code compliance.
Learn how your score is calculated, what influences it, and how Energy Geeks helps improve it.
What Your HERS Score Means
The HERS Index compares your home to a reference home:
- 100 = Standard new home
- 80 = 20% more efficient
- 50 = 50% more efficient
- 0 = Net-zero home
New homes built in MA and RI typically fall in the 45–60 range, depending on construction quality and code requirements.
See the full rating process:
The HERS Rating Process
What Affects Your Score
Insulation & Envelope
Envelope performance is verified during the rough inspection stage. Learn more in
What Is a HERS Rating?
Air Leakage
Measured with a Blower Door Test:
Blower Door Testing
Duct Leakage
Measured separately to determine distribution efficiency:
Duct Leakage Testing
HVAC Systems
Efficiency ratings directly affect the model.
Windows, Doors & Ventilation
Performance values and installation quality matter.
Appliances
Energy Star appliances may help to lower a home’s HERS score.
Cold-Climate Sensitivity
In MA & RI, winter heating demand magnifies:
- Air leakage penalties
- Insulation quality impacts
- HVAC sizing and efficiency
- Duct leakage losses
This regional factor is integrated into the HERS modeling software.
Why Your Score Matters
A better score helps you:
- Meet MA Stretch Code or RI’s 2024 IECC
- Qualify for RI and Mass Save RNC and R&A programs
- Increase comfort and durability
- Reduce heating and cooling costs
- Improve property value
Learn compliance requirements:
Code Compliance in MA & RI
How Energy Geeks Improves Your Score
We provide:
- Advanced energy modeling
- Recommendations during design
- Blower Door & Duct Leakage Testing
- Verification and certification
- Program support for incentives
Related Pages
Ready to Improve Your Score?
Request a HERS Rating
Our certified team is ready to help.
