Published: May 2026 | HERS RatingMassachusettsPricing
If you’re a builder, developer, or homeowner in Massachusetts planning a new construction project or renovation, one of the first questions you’ll have is: how much does a HERS Rating cost?
In this guide, we break down current 2026 HERS Rating pricing in Massachusetts by project type, explain what’s included, and show you exactly what factors affect your final price.
Single-Family Home: $1,850–$2,500
Multifamily (per unit): $650–$1,200
ADU / Accessory Dwelling Unit: $1,600–$1,850
HERS Rating Cost by Project Type
| Project Type | Price Range | What’s Included |
|---|---|---|
| Single-Family Home | $1,850–$2,500 | Plans review, energy model, on-site inspection, blower door test, duct leakage test, certified report |
| Multifamily (per unit) | $650–$1,200/unit | Energy model per unit, all required testing, certified HERS report per unit |
| ADU / Accessory Dwelling Unit | $1,600–$1,850 | Plans review, energy model, full inspection, certified report |
What’s Included in a HERS Rating?
A professional HERS Rating in Massachusetts includes several components that must all be completed by a RESNET-certified rater:
1. Plans Review & Energy Model
Before construction begins, your rater reviews your building plans and creates an energy model using software like REM/Rate or EnergyGauge. This step ensures the home is designed to meet the required HERS score (55 or below under MA Stretch Code) and identifies any issues before they’re built in.
2. On-Site Inspection
During or after construction, a RESNET-certified rater visits the property to verify insulation levels, window specifications, HVAC equipment, and duct system installation match the energy model.
3. Blower Door Test
The blower door test measures air tightness in ACH50. Under the MA Stretch Code, new residential construction must achieve 3.0 ACH50 or less. This test is included in the HERS Rating process and must be performed by a certified rater.
4. Duct Leakage Test
Using a duct blaster, the rater measures how much conditioned air escapes through duct system leaks. This is required for all HERS Ratings and MA Stretch Code compliance certifications.
5. Certified HERS Report
Within 24 hours of the site visit, you receive your certified HERS Report showing the home’s HERS Index score, test results, and compliance documentation for Mass Save, code inspectors, or green building programs.
What Affects HERS Rating Cost in Massachusetts?
Several factors influence where your project falls within the price range:
- Project size: Larger homes with more complex systems take more time to model and inspect.
- Location: Travel to remote areas like the Berkshires or the Cape may add a small travel surcharge.
- Number of units: Multifamily projects with more units benefit from economies of scale.
- Complexity: Projects with complex HVAC systems, mixed-use designs, or passive house targets take more time to model.
- Re-tests: If a blower door or duct leakage test fails and requires a re-test after remediation, additional fees may apply.
Is a HERS Rating Required in Massachusetts?
Yes — a HERS Rating is required in Massachusetts for:
- MA Stretch Code compliance: Required in 300+ Massachusetts municipalities. New residential construction must achieve HERS 55 or below.
- Mass Save rebates: Most Mass Save energy efficiency rebate programs require a HERS Rating to qualify.
- Green building certifications: LEED, Energy Star, and National Green Building Standard all require HERS Ratings.
- Some building permits: Many municipalities require proof of HERS compliance as part of the building permit or certificate of occupancy process.
How to Get a Free HERS Rating Quote in Massachusetts
Getting a quote is fast and free. Contact HERS Rating Company at 617-584-1809 or use our online form. We serve all 351 Massachusetts cities and towns and provide 24-hour report turnaround — guaranteed.
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