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Need a HERS Rating in Massachusetts? You're in the right place.

Fast, Stress-Free HERS Ratings for Massachusetts Homeowners, Builders & Architects

You talk directly to Max — he handles everything
All MA cities & towns · All project types
Mass Save Partner
Max - EcoScore Home Performance HERS Rater
Max Shiver
RESNET Certified HERS Rater

I'm the owner and the person who picks up the phone. Every HERS rating, every inspection, every question — answered by me directly. No dispatch, no outsourcing.

⚔️ U.S. Army Veteran · Spencer, MA
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RESNET Certified
🏛️
ICC Credentialed
2h response
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All of MA
RESNET Certified HERS Rater ICC Residential Energy Inspector / Plans Examiner ICC IECC/HERS Compliance Specialist Mass Save Partner
Tell Us About Your Project
We'll respond within 2 business hours
🔒 Never shared. Never sold.
Got it — thanks!
We'll reach out soon to go over your project.
★★★★★

"We had no idea what a HERS rating even was. Max called us back the same day, explained everything start to finish, and handled all the paperwork. Building permit went through without a hitch."

J
Jennifer & Tom R.
New Construction Homeowners · Worcester, MA
🏠 If This Is Your First Time

Never heard of a HERS rating?
You're not alone — and that's fine.

Most people building a new home or renovating an existing home in Massachusetts have no idea a HERS rating is required until the building department mentions it. It's a code requirement, not optional — but it doesn't have to be stressful. Here's exactly what happens when you work with EcoScore:

1
You send us your plans

Floor plans and basic building specs. No energy jargon required — we'll tell you exactly what we need, in plain language.

2
We model your home and issue the projected rating

This goes to your building department with your permit application. Typically done in 2–5 business days. We handle the technical certification document.

3
We inspect during and after construction

On-site visits to verify insulation, air sealing, and mechanical systems — plus a blower door test at the end.

4
We issue the final HERS rating

Required for your Certificate of Occupancy. We submit the documentation directly to RESNET's registry. You're done.

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Talk to Max directly — he'll answer your questions and walk you through the whole process.

EcoScore is a solo operation. When you reach out, you get the actual HERS rater — not a salesperson, not a scheduling system. Max will explain your project requirements in plain English and tell you exactly what you need.

  • Free initial project review — no obligation
  • Responds within 2 business hours
  • Explains everything in plain language
  • Serving all of Massachusetts
Get a Free Project Review →
★★★★★

"I had never heard of a HERS rating until our builder said we needed one for the permit. I didn't know where to start. Max explained the whole thing on our first call — what it was, why it was required, what he'd need from us, and what the timeline looked like. Nothing was confusing after that call. Process was smooth start to finish."

S
Sarah M.
New Construction Homeowner · Shrewsbury, MA
★★★★★

"We're building a custom home for the first time and had zero idea what energy compliance involved. Max walked us through what the inspectors would be looking for during framing so our contractor knew what to expect. He caught a gap in our air sealing plan before it became a problem. Worth every penny just for that."

D
Dave & Linda K.
Custom New Construction · Westborough, MA
★★★★★

"Adding an ADU to our property — my contractor said we'd need a HERS rating but didn't know who to recommend. Found EcoScore online. Max responded within an hour, knew exactly what was required under our town's code, and turned around the projected rating in three days. No runaround. Exactly what you want when permits are holding up your project."

R
Ryan T.
ADU Addition · Framingham, MA
Understanding HERS

What is a HERS Rating? The MPG score for your home.

A HERS score measures how energy-efficient a home is — the lower the number, the more efficient. In Massachusetts, a HERS rating is required at two critical stages of every new residential construction project.

When You Need a HERS Rating in MA

1
Building Permit — Projected RatingA projected HERS rating from your construction drawings is required to obtain a building permit in most Massachusetts municipalities.
2
Certificate of Occupancy — Final RatingAfter construction, a final HERS rating with blower door and duct leakage testing is required before a CO can be issued.
The HERS Index Scale
0 (Net Zero)50100 (Baseline)150+
≤ 45: MA Stretch Code target (all-electric) / ≤ 42 mixed-fuel
57: Average for newly built homes nationally
100: 2006 reference home (code baseline)
130+: Typical existing / older home
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Required for Permit & CO
Projected rating for your building permit. Final rating with field testing for your Certificate of Occupancy.
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45L Federal Tax Credits
Builders can claim $2,500–$5,000 per unit. A HERS rating is the required IRS third-party documentation.
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Higher Resale Value
Certified HERS scores command higher sale prices and qualify homes for Energy Efficient Mortgages.
Mass Save Rebate Eligibility
HERS documentation supports access to Mass Save incentive programs for homeowners and developers.
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Performance Path Flexibility
Ekotrope energy modeling can eliminate costly continuous exterior insulation requirements under 2024 IECC.
Who We Serve

Every stakeholder in the process

Builders, architects, homeowners, code officials — EcoScore makes compliance straightforward for everyone involved.

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For Builders
Builders & Contractors

Fast turnaround on plan review. Flexible inspection windows. We work around your schedule.

  • Projected rating for building permit
  • Framing & insulation inspection
  • Final blower door & duct testing
  • CO-ready HERS certificate
  • 45L tax credit documentation
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For Homeowners
Homeowners

Know exactly how efficient your new home is. Plain English — no jargon, no runaround.

  • New construction HERS certification
  • Existing home energy assessments
  • Mass Save documentation
  • Energy Efficient Mortgage support
  • Clear written report & certificate
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For Architects
Architects & Designers

Catch compliance issues at the design stage — not at permitting. Early plan review saves time and money.

  • Early plan review & feedback
  • Stretch Code compliance consulting
  • Performance vs. prescriptive analysis
  • Ekotrope energy modeling
  • LEED & Energy Star support
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For Code Officials
Code Officials

Complete, audit-ready documentation. Cleaner permit files. Faster inspections.

  • RESNET-certified rating reports
  • Projected rating for permit issuance
  • Final HERS certificate for CO
  • Complete inspection audit trail
  • RESNET national registry filing
How It Works

How a Massachusetts HERS Rating Works — start to finish

1
Plan Submission

Submit drawings. We review insulation, windows, HVAC, and envelope specs.

2
Projected Rating

Projected HERS score issued — use this for your building permit application.

3
Framing Inspection

On-site verification of insulation, air barriers, and thermal bypasses.

4
Performance Testing

Blower door and duct leakage tests confirm actual airtightness at completion.

5
Final Certification

Official HERS certificate issued — submit for your Certificate of Occupancy.

6
Registry Filing

Rating filed with RESNET's national registry — permanent record for taxes and resale.

Credentials & Certifications

EcoScore Home Performance — RESNET and ICC Certifications

RESNET Certified HERS RaterRESNET HERS Rater
ICC Residential Energy Inspector / Plans ExaminerICC Inspector / Plans Examiner
ICC IECC/HERS Compliance SpecialistICC HERS Compliance Specialist
Max Shiver — RESNET Certified HERS Rater, EcoScore Home Performance, Spencer Massachusetts
Max Shiver
RESNET Certified HERS Rater · Central Massachusetts
⚔️ Veteran-Owned Business
About EcoScore

Your Massachusetts HERS Rater — credentials you can trust, communication you'll actually get.

Most homeowners building in Massachusetts have never heard of a HERS rating until it shows up as a permit requirement. That's fine — explaining it is part of the job. EcoScore is a solo operation, which means when you reach out, you're talking directly to the person doing the work. No call centers. No dispatchers.

Background in HVAC trade school, military service as a combat medic, and nursing. The approach is methodical, precise, and plain-spoken — energy code compliance is detail work, and people deserve to understand what they're paying for.

RESNET HERS Rater, ICC Residential Energy Inspector/Plans Examiner, and ICC HERS Compliance Specialist — the full certification stack to handle anything Massachusetts energy code throws at your project, from your first home to a portfolio of new builds.

Independent & Unbiased: EcoScore does not sell insulation, HVAC equipment, or installation services. Your HERS rating is a genuine third-party assessment — exactly what code, your clients, and the IRS require.

Common Questions

Questions people ask before getting started

I've never heard of a HERS rating — what is it exactly?

A HERS (Home Energy Rating System) rating is a third-party energy efficiency score for your home, like a miles-per-gallon rating for a car. In Massachusetts, it's required by code for most new construction — your builder needs a projected HERS rating to pull the building permit, and a final HERS rating (with on-site testing) before you can receive your Certificate of Occupancy. You don't need to understand all the technical details — that's what we're here for.

Do I need a HERS rating to get a permit in Massachusetts?

Yes — in most Massachusetts municipalities that have adopted the Stretch Code, a projected HERS rating based on your drawings is required for the building permit. The final HERS rating with on-site testing is then required before a Certificate of Occupancy can be issued.

What do I actually need to submit to get started?

For homeowners building a new home: floor plans, wall/roof sections with insulation details, a window schedule, and your HVAC equipment specs. Don't have everything yet? Reach out anyway — we can often start with partial plans and refine as the design develops. We'll tell you exactly what we need in plain language.

What's the difference between projected and final rating?

The projected rating is a model-based prediction from your plans — required for the building permit. The final rating involves on-site inspections and blower door / duct leakage testing after construction — required for the Certificate of Occupancy.

What HERS score does Massachusetts require?

Under the MA Stretch Code, new homes must achieve HERS ≤ 45 for all-electric or ≤ 42 for mixed-fuel. Communities on the Specialized Stretch Code may have additional requirements. Use the town lookup tool on this page to check your municipality.

What is the prescriptive vs. performance path?

The prescriptive path follows a fixed checklist — specific R-values, U-factors, etc. The performance path uses Ekotrope energy modeling to demonstrate equivalent performance, allowing design flexibility. Under 2024 IECC, performance modeling can eliminate the continuous exterior insulation the prescriptive path requires.

Can a HERS rating help with the 45L tax credit?

Yes — the 45L Federal Energy Efficient Home Credit pays builders $2,500–$5,000 per qualifying new unit. A HERS rating is the IRS-required third-party documentation. EcoScore provides 45L-compliant certification as part of the rating process.

How quickly can you turn around a projected rating?

Projected ratings are typically completed within 2–5 business days of receiving complete drawings. Rush turnaround is available — contact us to discuss your timeline.

Do you serve all of Massachusetts?

Yes. EcoScore serves all of Massachusetts with a focus on Central MA and Worcester County. Remote plan review is available statewide. On-site testing is scheduled across the state — contact us to confirm scheduling for your location.

Massachusetts Energy Codes

Which code applies to your town?

Massachusetts has three tiers of energy code — each with different HERS requirements. Look up your town before you submit for a permit.

Town Code Lookup

Enter any Massachusetts city or town to see which energy code applies and the required HERS target.

Service Area

Massachusetts HERS Ratings — Statewide, with a Central MA Focus

EcoScore Home Performance serves all of Massachusetts. Projected HERS ratings are completed remotely via plan review — available to any MA builder, architect, or homeowner statewide. On-site blower door testing and field inspections are scheduled throughout the state, with the shortest lead times in Worcester County and Central Massachusetts.

📍 Worcester County — Primary
Spencer ★ Worcester Shrewsbury Westborough Northborough Southborough Auburn Millbury Leicester Oxford Charlton Dudley Webster Grafton Northbridge Sutton Uxbridge Douglas Blackstone Holden Rutland Paxton Sterling Boylston West Boylston Clinton Berlin Leominster Fitchburg Gardner Princeton Barre Hardwick Hubbardston Templeton Athol Lunenburg Westminster Winchendon Milford Hopedale Upton Mendon
🏙️ MetroWest & Greater Boston
Framingham Natick Ashland Hopkinton Holliston Millis Medfield Medway Bellingham Franklin Hudson Marlborough Sudbury Wayland Waltham Newton Cambridge Somerville Boston Brookline Lexington Medford Lowell Quincy Brockton Taunton Attleboro Peabody Salem Haverhill Lynn
🌿 Pioneer Valley & Western MA
Springfield Chicopee Westfield Agawam Longmeadow East Longmeadow Wilbraham Hampden Monson Palmer Ware Belchertown Amherst Northampton Easthampton Holyoke South Hadley Granby Hadley Sunderland Deerfield Greenfield Pittsfield Lenox Great Barrington
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Don't see your town? We still serve you.

Projected HERS ratings are completed remotely — plan review is available anywhere in Massachusetts. On-site blower door testing is scheduled statewide. Contact us to confirm scheduling availability for your specific location.

Let's Talk

Questions? Permit deadline?
Just not sure where to start?

Fill out the form and Max will reach out directly — to answer your questions, walk through what you need, and let you know exactly what the process looks like for your project. No obligation, no sales pitch.

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Service Area
All of Massachusetts · Central MA / Worcester County
⏱️
Response Time
Within 2 business hours
Tell Us About Your Project
Fill out the form and we'll reach out with next steps.
🔒 Never shared. Never sold.
Got it — thanks!
We'll reach out soon to go over your project.