HERS Rating Duxbury MA
HERS Rating Duxbury MA services for new construction, additions, and renovations. Home Energy Efficiency Consultants provides certified HERS ratings in Duxbury, Massachusetts for homeowners, builders, and developers who need energy code compliance and clear project guidance.
Why clients choose us
We help projects in Duxbury with energy code guidance, HERS documentation, practical field support, and clear communication from planning through completion.
HERS Rating Duxbury MA Services
Looking for HERS Rating Duxbury MA services? We provide certified HERS ratings for homes throughout Plymouth County, with support for new construction, additions, and major renovations.
We help projects in Duxbury meet Massachusetts energy code requirements with practical guidance on insulation, HVAC systems, ventilation, air sealing, and final project verification.
Serving homeowners, builders, and developers across Duxbury, Massachusetts, Home Energy Efficiency Consultants provides practical support from planning through project completion.
Best fit for projects like:
- New construction homes
- Additions and expansions
- Gut renovations
- Permit-driven energy compliance
- Projects needing HERS documentation
Learn more about home energy ratings, RESNET standards, and Mass Save programs.
HERS Rating Duxbury MA Project Support
HERS Rating Duxbury MA services help builders and homeowners plan for energy code compliance, documentation, and project completion.
Certified HERS Rating Duxbury MA
We provide HERS rating support for new homes, additions, and major renovations in Duxbury, Massachusetts.
Energy Code Guidance in Duxbury
Duxbury sits in Plymouth County on the South Shore and falls in Climate Zone 5A, which shapes the insulation and air-sealing targets a home must hit under the Massachusetts energy code. Permits, plan review, and inspections here run through the Duxbury Building Department, located on the second floor of Town Hall and led by Building Commissioner James Wasielewski. We coordinate the HERS documentation these reviews expect so your project clears code without surprises. For a plain-English walk-through of the current residential requirements, see our Energy Code Review guide, which breaks down the code provisions that apply to new construction, additions, and major renovations in Duxbury.
Why Choose Us for HERS Rating Duxbury MA
Strong communication, local knowledge, and practical project support.
- Massachusetts energy code experience
- Fast report turnaround
- Clear communication throughout the project
- Practical field support for builders and homeowners
- Trusted by clients across Massachusetts
HERS rating pricing in Duxbury depends on home size, design complexity, and project scope.
HERS Rating Duxbury MA Facts
Helpful answers for homeowners, builders, and developers planning a project in Duxbury.
Duxbury is a town in Plymouth County, Massachusetts, United States. A suburb located on the South Shore approximately 35 miles (56 km) to the southeast of Boston, the population was 16,090 at the 2020 census. Duxbury is located in Plymouth County, Massachusetts. The 02331 area, like the rest of Massachusetts, sits in IECC climate zone 5A, which shapes insulation, air-sealing, and HVAC requirements for HERS rating and energy code compliance.
Where does HERS rating apply in Duxbury?
New construction, additions, and major renovations in Duxbury, Plymouth County are reviewed against the Massachusetts energy code, and a HERS rating is the standard way to document compliance.
What climate zone is Duxbury in?
Like all of Massachusetts, Duxbury is in IECC climate zone 5A, which sets the insulation, air-sealing, and mechanical-system targets a HERS rater verifies.
Do existing homes in Duxbury need a HERS rating?
Most existing homes only need a rating for major renovations, additions, or energy-code permits; new construction in Duxbury almost always requires one.
How does a HERS rating help Duxbury homeowners?
A lower HERS Index signals a more energy-efficient home, lower utility bills, and easier code compliance for projects in Duxbury.
What is a HERS Rating?
A HERS Rating measures the energy efficiency of a home and is commonly used for new construction, additions, and major renovations in Massachusetts.
Who may need one?
Builders, homeowners, and developers in Duxbury may need a HERS rating depending on project size, code path, and permit requirements.
Why local experience matters
Local experience helps ensure your project is reviewed with Massachusetts requirements, practical construction details, and real jobsite conditions in mind.
What the process may include
Depending on the project, the process may include plan review, energy modeling, field verification, and final testing support.
Our 5-Step HERS Rating Process in Duxbury
A full-service HERS rating for Duxbury homes — not a quick three-point inspection. As a Mass Save partner, we guide your project from blueprint to final verification.
Plan & Blueprint Review
We review your Duxbury plans and consult on windows, heating, cooling, and hot water systems to confirm they meet the Massachusetts energy code before construction begins.
Energy Modeling
We build a REM/Rate energy model to project your HERS index and identify the most cost-effective path to compliance and rebates.
Compliance Consulting
We coordinate with your builder on insulation, air sealing, and mechanical selections so the home stays on track through construction.
Field Verification
On site we perform inspections, a blower door test for air leakage, and duct testing to verify real-world performance.
Final Rating & Certification
We issue your certified HERS index and the documentation Duxbury permitting and Mass Save rebate programs require.
Duxbury and the Massachusetts Specialized Stretch Code
Duxbury is in Climate Zone 5A. Under the Massachusetts Specialized Stretch Code, new residential construction must meet solar-ready and EV-ready requirements in addition to a target HERS index.
Solar-Ready Requirements
New homes must reserve roof area and electrical capacity for future solar (RB102), so the home is ready for a PV system without costly rework.
EV-Ready Requirements
Provisions for electric-vehicle charging (RB103) must be roughed in, giving Duxbury homeowners a straightforward path to install a charger later.
Talk directly with the owner
Have questions about the Stretch Code or your rebate options? Speak directly with Dominic Zammuto, owner and Mass Save partner, who personally guides Duxbury projects. See our Energy Code Review guide for the full Massachusetts residential energy code breakdown.
Our Massachusetts Service Locations
Serving clients from our Massachusetts locations in Everett, Somerville, and Framingham.
Everett Location
371 Main St
Everett, MA 02149
Somerville Location
519 Broadway
Somerville, MA 02145
Framingham Location
68 South St
Framingham, MA 01702
Trusted for HERS Rating Duxbury MA
Real customer feedback helps show the level of service clients expect from Home Energy Efficiency Consultants.
Eleni Kaplan
Google Review
“Dominic got us 50k back on a 3 family we renovated through the HERS rating! We will definitely be using him for future projects. He’s a huge team player — we highly recommend him.”
Kevin McLaughlin
Google Review
“We were working on a house renovation and needed a HERS rating to get our permit. Dominic was very knowledgeable, extremely professional, and efficient.”
Luis Maldonado
Google Review
“If you’re looking for a reliable HERS rating company, this is it. Professional, knowledgeable, and efficient. They also helped me secure rebates I didn’t even know were available.”
Valentina Valencia Valencia
Google Review
“Best decision I made was hiring Home Energy Efficiency Consultants LLC. Their attention to detail and willingness to answer all my questions made the process stress-free.”
Lee Kravetz
Google Review
“I worked with Dominic on my HERS rating. He was knowledgeable and helped me through each step of making sure I got things right on my build.”
mike cartolano
Google Review
“Super Fast and Great Price ..great Communication”
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FAQ About HERS Rating Duxbury MA
Common questions about HERS ratings in Duxbury, Massachusetts.
What is a HERS rating?
A HERS (Home Energy Rating System) rating is the national industry standard for measuring a home's energy efficiency. A certified HERS Rater reviews the plans and performs on-site inspections and testing, including a blower door test, to produce a score. Lower is better: a standard new home built to 2006 code scores 100, while a net-zero home scores 0.
What is a good HERS score?
Any score below 100 beats a standard new home, and the lower the number the more efficient the home. A score of 50 means the home is about 50% more efficient than a standard new build, while older unimproved homes often score 130 or higher. Massachusetts code targets are now well below 100.
How have Massachusetts HERS requirements changed in recent years?
Massachusetts has steadily tightened the maximum allowable HERS score. The required score for new homes was around 55 in 2022, dropped to 52 in 2023, and tightened to HERS 42 for mixed-fuel homes and 45 for all-electric homes as of July 1, 2024. The 2023 update also adopted the 2021 IECC as the base code and removed the earlier 5-point HERS credit for rooftop solar, pushing toward efficiency and electrification.
How much does a HERS rating in Duxbury cost?
A HERS rating in Duxbury typically costs:
- Single-family homes: $1,850–$2,500
- Accessory dwelling units (ADUs): $1,600–$1,850
- Multifamily: $900–$1,450 per unit
Final pricing depends on home size, complexity, and the number of required site visits.
What HERS score do I need to pass in Duxbury?
As of July 1, 2024, new construction needs a HERS 42 for homes using any fossil fuel and a HERS 45 for all-electric homes, verified by a certified RESNET HERS rater. Low-emission concrete comes in around 45 with gas or 48 all-electric, an ADU is 55 all-electric or 52 with gas, and multifamily matches the single-family requirement.
What triggers a HERS rating in Duxbury?
New construction almost always requires one. Under energy code Section R502, an addition triggers a HERS rating when the added conditioned floor area exceeds 1,000 square feet or doubles the size of your existing conditioned space (more than 100% of the existing conditioned floor area), requiring the combined dwelling to meet the maximum HERS ratings in Table R406.5.
Do renovations or alterations require a HERS rating?
They can. Under Section R503, extensive alterations (or IEBC Level 3 alterations) that exceed 1,000 square feet or double the size of the existing conditioned space (over 100% of the existing conditioned floor area) must meet the maximum HERS ratings in Table R406.5. Smaller alterations must still meet component requirements for insulation, replacement windows, water heating, and lighting.
Do I need a HERS rating in Duxbury?
If Duxbury has adopted the Massachusetts Stretch Energy Code, then yes for new homes, larger additions, and extensive renovations. A certified HERS rater can confirm whether your specific project triggers the requirement.
What kind of windows do I need to meet the new energy code?
All-electric homes favor a U-value of .25/.26 with an SHGC of .42 or higher, while gas homes favor tighter values. For replacements specifically, Section R503.1.1.1 requires new units, including sash and glazing, to meet the U-factor and SHGC in Table R402.1.3.
What kind of insulation do I need to pass a HERS rating?
You generally need around R-21 to R-30 depending on whether you go gas or all-electric.
What if I do not want to use spray foam?
You can use exterior insulation and then use mineral wool inside the wall.
How can I build to energy code in a cost-effective way?
Using low-emission concrete can reduce the HERS score by about 3 points, saving close to $20k or more between systems and upgrades.
What is an ERV system and do I need it in Duxbury?
Yes, it is now required by code. You can use an ERV or HRV to satisfy the requirement for balanced mechanical ventilation.
How much CFM do I need for my ERV?
It is based on bedrooms, square footage, and insulation volume, along with the ACH from your blower door test.
What do I need to start a HERS rating?
You need a set of architectural plans and to know whether you will go gas or all-electric.
How can I improve my score and what affects my score?
Your score is affected by windows, insulation, HVAC, and appliances such as the washer, dryer, dishwasher, and fridge.
Does a HERS rating add value to my home?
Yes. Energy-efficient HERS-rated homes have been shown to sell at a premium over comparable standard homes, on top of ongoing savings from lower utility bills.
Are there rebates for a HERS rating in Duxbury?
Yes. Working with a certified HERS rater can unlock Mass Save incentives for new construction and renovations.
Where can I find a HERS rater near Duxbury?
We are a certified RESNET HERS rater serving Duxbury and the surrounding area. We provide HERS ratings for new construction, additions, and renovations.
HERS Score Requirements in Duxbury by Year
Massachusetts Stretch Energy Code HERS thresholds have tightened over time. These are the maximum HERS Index scores required to pass for new construction, based on when the building permit was filed.
| Time Frame | Required HERS Score |
|---|---|
| 2022 | New homes: HERS 55 or lower |
| Effective Jan 1, 2023 | New homes: HERS 52 or lower |
| Effective July 1, 2024 (current) | HERS 42 for homes using any fossil fuel; HERS 45 for all-electric homes |
| Major remodels, additions & change-of-use | Generally HERS 65 to 75 |
| ADUs (per recent updates) | Around HERS 52 mixed-fuel / 55 all-electric |
Note: HERS requirements are set by the Massachusetts Stretch and Specialized Energy Codes and can change with code updates. Figures reflect the current code at the time of writing.
Mass Save Rebates & Incentives
A HERS rating can unlock Mass Save incentives for eligible projects in Duxbury. Incentives are available for both new construction and for renovations and additions. Actual amounts depend on project type, number of units, efficiency level, and program eligibility.
For Duxbury projects, the rebate amounts follow the efficiency path and the number of units. An all-electric new build on the Base path starts around $7,500 for a single-family home and climbs to about $11,250 for a four-unit property. Meeting the ENERGY STAR path — 30%+ energy savings or a HERS index of 45 — lifts that range to roughly $15,000–$22,500, and a Passive House build can reach about $25,000–$40,000 depending on unit count. On the renovation side, Mass Save Pay-for-Savings incentives run up to $10,000 on the base tier or $15,000 all-electric, while larger Level 1 and Level 2 retrofits can range from $20,000 to $60,000 based on scope and units. Since every incentive hinges on verified energy modeling and field-tested results, we produce the HERS documentation your Duxbury project needs to secure the highest rebate it qualifies for.
New Construction Incentives (Single-family, 1-4 units)
| Path | Single Family | 2-Unit | 3-Unit | 4-Unit |
|---|---|---|---|---|
| Base (all-electric) | $7,500 | $8,750 | $10,000 | $11,250 |
| ENERGY STAR (30%+ savings or HERS 45) | $15,000 | $17,500 | $20,000 | $22,500 |
| Passive House | $25,000 | $30,000 | $35,000 | $40,000 |
Incentives up to $25,000 are available for the construction of single-family homes.
Renovations & Additions Incentives (Single-family, 1-4 units)
| Tier | Incentive |
|---|---|
| Base | Pay-for-Savings ($0.30/kWh + $30/MMBtu + savings x $2,500); up to $10,000 total |
| All-Electric Base | Pay-for-Savings ($0.40/kWh + savings x $3,000); up to $15,000 total |
| Level 1 | Single-family $20,000; 2-unit $30,000; 3-unit $40,000; 4-unit $50,000 |
| Level 2 | Single-family $30,000; 2-unit $40,000; 3-unit $50,000; 4-unit $60,000 |
Eligibility: projects within Sponsor electric service territory. Renovations must be extensive (about 50% or more of the original home) or additions of at least 500 square feet. Full terms and conditions are available on the Mass Save website. Incentive programs can change.
Get Started With HERS Rating Duxbury MA
Contact Home Energy Efficiency Consultants today for certified HERS ratings and project support in Duxbury, Massachusetts.
