- 6175841809
- hersratingcompany@gmail.com
- 12 Pond St Ashland, MA 01721 United States
- 573 Washington St Quincy, MA 02169 United States
Certified HERS Rater serving Cape Cod, Massachusetts — helping builders, developers & homeowners meet the Massachusetts Stretch Energy Code and qualify for Mass Save incentives.
Get a Free QuoteCall 617-584-1809Cape Cod builders must comply with the Massachusetts energy code in force locally — Base, Stretch (225 CMR 22), or the Municipal Opt-in Specialized Code (225 CMR 23). As of the June 2026 Mass.gov adoption list, 242 of 351 Massachusetts municipalities enforce the Stretch Code and 60 have opted into the Specialized Code. New homes under the Stretch Code must reach a maximum HERS Index of 42 (mixed-fuel) or 45 (all-electric), verified by a RESNET-certified HERS rater.
Related Cape Cod services: Blower Door Testing Cape Cod · Duct Leakage Testing Cape Cod · Stretch Code Compliance Cape Cod · MA Energy Codes Guide — or get a free quote from our RESNET-certified team (617-584-1809).
Sources: 2025 DOER Massachusetts Stretch & Specialized Codes Technical Guidance (Sept 2025); Mass.gov Building Energy Code Adoption by Municipality (June 2026); Mass Save 2026 Residential New Construction program.
Most of the region does — 242 of 351 Massachusetts municipalities enforce the Stretch Code, which requires a certified HERS rating for new dwellings. Check your town on the Mass.gov adoption list or call us and we’ll confirm your requirements.
In Stretch Code communities, new homes must score HERS 42 or lower (mixed-fuel) or 45 or lower (all-electric); ADUs fall in the 52–58 range and major alterations/additions in the 65–75 range.
It varies by municipality: 242 Massachusetts towns enforce the Stretch Code, 60 the Specialized Opt-in Code, and 49 the Base Code as of the June 2026 Mass.gov list.
For comparison, here is the official maximum-HERS table that applies in Massachusetts Stretch Code and Specialized Code communities (Table R406.5, 2025 DOER Technical Guidance):
| Building type | New construction (permits after 7/1/2024) | New construction w/ embodied-carbon credit (R406.5.2) | Accessory Dwelling Units | Major alterations, additions, change of use |
|---|---|---|---|---|
| Mixed-fuel building | 42 | 45 | 52 | 65 |
| Mixed-fuel + solar electric | 42 | 45 | 55 | 70 |
| All-electric building | 45 | 48 | 55 | 70 |
| All-electric + solar electric | 45 | 48 | 58 | 75 |
Scores are measured before counting on-site renewable generation (per R406.5). Historic buildings may opt out for alterations under R503.1.1. Embodied-carbon credits (+3 points) come from low-GWP concrete and insulation EPDs per Table R406.5.3/R406.5.4.
Detail sourced from the 2025 Massachusetts Stretch & Specialized Codes Technical Guidance (DOER, Sept 2025), Table R406.5 and Appendix RC.
HERS Rating Company provides certified HERS Index ratings in Cape Cod, Massachusetts. Our RESNET-accredited raters deliver fast, accurate energy ratings to keep your project on schedule and in full compliance with Massachusetts energy codes.
Whether building new or renovating in Cape Cod, MA, our certified HERS raters provide all documentation needed for building permits and final inspections.
The MA Stretch Energy Code requires all new residential construction to be verified by a certified HERS rater. Builders in Cape Cod must meet IECC 2021 requirements including air tightness tested by blower door and duct leakage verified by duct leakage testing. We provide all documentation required by the Cape Cod building department.
Ready to schedule your HERS rating in Cape Cod, MA? Get a fast, free quote today.
Schedule Your HERS RatingCall 617-584-1809HERS Rating costs in Cape Cod typically depend on home size, design complexity, and the number of required site visits. For an accurate quote tailored to your Cape Cod project, call our RESNET-certified team at 617-584-1809.
Yes. New residential construction in Cape Cod, MA must demonstrate energy-code compliance, and a HERS Rating is the standard path under the Massachusetts Stretch Code. Call 617-584-1809 to confirm requirements for your build.
A HERS Rating in Cape Cod generally involves plan review, a mid-construction inspection, and a final test with blower door and duct testing. Timing depends on your construction schedule. Reach us at 617-584-1809 to coordinate.
The Massachusetts Stretch Code sets maximum HERS index targets that vary by code version and home type, with lower scores indicating greater efficiency. Our Cape Cod raters help you hit the required score—call 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.
