If you are building a new home, addition, or renovation in Barnstable, Massachusetts, your project may require a HERS Rating (Home Energy Rating System) to comply with the Massachusetts Stretch Energy Code and IECC 2021 energy code requirements.
HERS Rating Company provides certified HERS Ratings in Barnstable MA, helping builders, developers, and homeowners meet energy code requirements while maximizing available Mass Save rebates and incentives.
Our certified HERS raters provide energy modeling, blower door testing, duct leakage testing, insulation inspections, and final HERS certification for residential projects across Cape Cod and Barnstable County.
Learn more about our services:
https://hersratingcompany.com/services/hers-rating-massachusetts/
https://hersratingcompany.com/services/duct-leakage-testing/
A HERS Rating (Home Energy Rating System) is the nationally recognized system used to measure the energy efficiency of residential buildings.
The rating is used across Massachusetts to verify compliance with the 2021 International Energy Conservation Code (IECC) and the Massachusetts Stretch Energy Code.
Learn more about HERS Ratings:
The HERS Index Score compares a home’s efficiency to a standard reference home.
Typical scoring scale:
100 HERS Score – Standard new home
70–55 HERS Score – Typical Massachusetts Stretch Code target
40–50 HERS Score – High-performance home
0 HERS Score – Net Zero Energy home
Lower scores indicate better energy efficiency and lower utility costs.
Barnstable has adopted the Massachusetts Stretch Energy Code, which requires higher efficiency standards than the base building code.
Projects that often require a HERS Rating in Barnstable MA include:
New construction homes
Multi-family buildings
Major renovations
Large additions
Accessory dwelling units (ADUs)
Learn more about the Stretch Code:
Because the Stretch Code uses a performance pathway, homes must achieve a target HERS Index score verified by a certified HERS rater.
HERS Rating Company provides full energy code compliance services for residential construction.
Energy modeling predicts the HERS score before construction begins, helping builders choose the most cost-effective insulation levels, windows, and HVAC systems.
Learn more:
https://hersratingcompany.com/services/hers-rating-massachusetts/
A blower door test measures air leakage in the building envelope to ensure the home meets air-tightness requirements.
Learn more:
https://hersratingcompany.com/services/blower-door-testing/
Duct leakage testing verifies HVAC duct systems are sealed properly and operating efficiently.
Learn more:
https://hersratingcompany.com/services/duct-leakage-testing/
Our HERS raters verify insulation installation to ensure the building envelope performs as designed in the energy model.
We verify high-efficiency mechanical equipment including:
Heat pump systems
ERV ventilation systems
Heat pump water heaters
Energy Star appliances
Mechanical equipment efficiency plays a major role in the final HERS score.
After testing and inspections are complete, we provide the official HERS documentation required for final inspection and certificate of occupancy.
Many homes completing a HERS Rating in Barnstable MA qualify for incentives through the Mass Save® program.
Potential incentives include:
Heat pump rebates
Heat pump water heater rebates
Insulation rebates
0% interest HEAT loans
Whole home energy efficiency incentives
Learn more:
Builders across Massachusetts work with HERS Rating Company because we focus on cost-effective Stretch Energy Code compliance.
Benefits include:
Certified RESNET HERS raters
Experience with IECC 2021 and Massachusetts Stretch Energy Code
Accurate blower door testing
Fast energy modeling turnaround
Assistance qualifying for Mass Save rebates
We help improve HERS scores using strategies such as:
High-efficiency heat pump systems
Energy recovery ventilation (ERV)
Improved air sealing methods
High-performance insulation assemblies
Many homeowners do not realize that large home additions in Barnstable may require energy modeling and HERS verification under the Stretch Energy Code.
Projects that may trigger compliance include:
Second-story additions
Major renovations
Home expansions
Accessory dwelling units (ADUs)
Our energy modeling process helps determine the most cost-effective path to meeting code requirements.
If you are planning a project in Barnstable Massachusetts, HERS Rating Company can guide your project from design through final inspection.
Our certified HERS raters help builders meet Massachusetts Stretch Energy Code requirements while maximizing energy efficiency and rebates.
Learn more:
https://hersratingcompany.com/
https://hersratingcompany.com/contact/
617-584-1809
At HERS Rating Company, we are committed to providing the highest quality energy consulting services to homebuilders, architects, and developers across Massachusetts.
24/7 Support
Sign up for our newsletter to receive exclusive updates, tips, and insights about energy-efficient building practices, financial incentives, and the latest energy code requirements in Massachusetts.
12 Pond St Ashland, MA 01721 United States
573 Washington St Quincy, MA 02169 United States
© 2025, All Rights Reserved.