Quick Answers
Do I need a HERS rating in Arlington, MA?
Yes, in most cases. Massachusetts requires a HERS rating for new residential construction and for large additions or major renovations in communities that follow the Stretch or Specialized Energy Code. A preliminary HERS rating is typically needed for the building permit and a final rating for the certificate of occupancy.
What HERS score is required in Arlington, MA?
Under the 2025 Massachusetts Stretch Code, new mixed-fuel homes need HERS 42 or lower and all-electric homes 45 or lower; an embodied-carbon credit for low-GWP insulation or concrete adds 3 points. Major additions and Level 3 renovations use separate targets (HERS 65-75) and ADUs 52-58. We confirm the exact path for your Arlington project.
How much does a HERS rating cost in Arlington, MA?
Most Massachusetts HERS ratings run from about $600 to $2,500 depending on the size and scope of the project. Call (617) 501-6788 for a free same-day quote for your Arlington project.
How fast can I get a HERS rating in Arlington?
We offer same-day scheduling and deliver reports in 24-48 hours. Home Energy Efficiency Consultants has completed 15,000+ HERS ratings statewide and holds a 5.0-star rating from 135 Google reviews.
HERS Rating Arlington MA - Quick Facts
Local energy code in Arlington
- As of January 1, 2024, Arlington enforces the Massachusetts Specialized (Opt-In) Energy Code on top of the Stretch Code baseline - IECC Climate Zone 5A.
- The Opt-In code goes further than the Stretch baseline: new fossil-fuel homes must be pre-wired for electrification and include on-site solar where roof space allows.
- New all-electric homes rely on heat pumps for heat and hot water; large fossil-fuel homes over 4,000 sq ft must hit net-zero (HERS 0), and multifamily over 12,000 sq ft must be Passive House.
- Arlington also participates in the Massachusetts Municipal Fossil Fuel-Free Building Demonstration Program - new construction and major renovations must be built fossil-fuel-free (all-electric), a step beyond the Specialized Code.
What the code requires in Arlington
- A HERS rating is required in Arlington for: new construction; additions over 1,000 sq ft (or greater than 100% of the existing conditioned floor area); and extensive Level 3 alterations over 1,000 sq ft affecting more than 50% of the conditioned floor area.
- New home, mixed-fuel (gas heat, hot water or cooking): must reach HERS 42 or lower.
- New home, all-electric: must reach HERS 45 or lower.
- Embodied-carbon materials credit: allows up to HERS 48.
- ADU, mixed-fuel (gas): HERS 52; ADU, all-electric: HERS 55; ADU with the embodied-carbon credit: HERS 58.
- Major additions and renovations: tiered HERS targets of roughly 52 to 75 depending on project scope.
- Air tightness: a blower door test at 3.0 ACH50 or tighter; duct leakage capped at 4 CFM25 per 100 sq ft when ducts run outside conditioned space.
- Also required in new homes: whole-house mechanical ventilation (ASHRAE 62.2) and EV-ready wiring; compliance runs through the HERS / Energy Rating Index path (2025 code section R406).
How compliance is verified
- Energy model from your plans, a pre-drywall (rough) inspection, blower door and duct leakage testing, then a final HERS certificate filed with the Arlington building department.
- Same-day preliminary HERS reports; blower door and duct results in 24-48 hours, with fail-fix guidance if a home misses the target.
Mass Save rebates for Arlington (2026)
- For new all-electric homes, 2026 Mass Save pays $7,500 (Base), $15,000 (ENERGY STAR NextGen), or $25,000 (Passive House) per single-family home - up to $40,000 for a 4-unit.
- All-electric renovations and additions: up to $20,000 (Level 1) or $30,000 (Level 2) for a single-family, scaling to $60,000 for a 4-unit; projects that keep fossil fuel use pay-for-savings up to $10,000.
- New multifamily (5+ units): $1,000 to $3,750 per unit by tier (Base, ENERGY STAR, or Passive House), plus a $5,000 feasibility-study incentive and energy-modeling support.
- Stackable with the federal 45L tax credit, up to $5,000 per unit. All Mass Save incentives require verification by a Mass Save-approved, RESNET-certified HERS rater.
RESNET-certified · 15,000+ ratings completed · 5.0 stars across 135 Google reviews · (617) 501-6788
HERS Rating Arlington MA
Arlington is one of just ten Massachusetts communities cleared to require fossil-fuel-free building, and its Fossil Fuel-Free Bylaw took effect on May 21, 2024. That makes energy modeling and HERS verification especially important for new homes and gut renovations along Massachusetts Avenue, around Arlington Heights, and throughout the town's dense residential neighborhoods. Home Energy Efficiency Consultants provides RESNET-certified HERS ratings that keep Arlington projects compliant with both the Specialized Stretch Energy Code and the town's all-electric bylaw, from early energy modeling through final blower-door and duct testing.
Why clients choose us
We help projects in Arlington with energy code guidance, HERS documentation, practical field support, and clear communication from planning through completion.
HERS Rating Arlington MA Services
Looking for HERS Rating Arlington MA services? We provide certified HERS ratings for homes throughout Middlesex County, with support for new construction, additions, and major renovations.
We help projects in Arlington 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 Arlington, 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 Arlington MA Project Support
HERS Rating Arlington MA services help builders and homeowners plan for energy code compliance, documentation, and project completion.
Certified HERS Rating Arlington MA
We provide HERS rating support for new homes, additions, and major renovations in Arlington, Massachusetts.
Energy Code Guidance in Arlington
Arlington is a Middlesex County town just northwest of Boston, in Climate Zone 5A, with a housing stock of older homes and additions that makes energy-code planning important. Permits, plan review, and inspections run through Arlington Inspectional Services, which administers the state building code and local zoning. We prepare the HERS documentation these reviews expect so your Arlington project moves ahead cleanly. For a clear rundown of the residential requirements, see our Energy Code Review guide, covering new construction, additions, and major renovations in Arlington.
Why Choose Us for HERS Rating Arlington 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 Arlington depends on home size, design complexity, and project scope.
HERS Rating Arlington MA Facts
Helpful answers for homeowners, builders, and developers planning a project in Arlington.
Arlington is a town in Middlesex County, Massachusetts, United States. The town is six miles (10 km) northwest of Boston, and its population was 46,308 at the 2020 census. Arlington is located in Middlesex County, Massachusetts. The 02174 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 Arlington?
New construction, additions, and major renovations in Arlington, Middlesex County are reviewed against the Massachusetts energy code, and a HERS rating is the standard way to document compliance.
What climate zone is Arlington in?
Like all of Massachusetts, Arlington is in IECC climate zone 5A, which sets the insulation, air-sealing, and mechanical-system targets a HERS rater verifies.
Do existing homes in Arlington need a HERS rating?
Most existing homes only need a rating for major renovations, additions, or energy-code permits; new construction in Arlington almost always requires one.
How does a HERS rating help Arlington homeowners?
A lower HERS Index signals a more energy-efficient home, lower utility bills, and easier code compliance for projects in Arlington.
Does new construction in Arlington have to be all-electric?
Yes. Arlington's Fossil Fuel-Free Bylaw took effect May 21, 2024, prohibiting new fossil fuel infrastructure in new construction and major renovations. New homes must be all-electric and reach a HERS Index of 45 or lower (or 48 via the embodied-carbon trade-off), verified by a certified HERS rater.
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 Arlington 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 Arlington
From permit-ready planning to your final certificate, here is exactly how we guide Arlington projects through HERS compliance — including the consulting step most raters leave out.
Plan Review & Preliminary Report
We start by reviewing your plans and issuing the preliminary HERS report your building department needs before a permit can be pulled.
Equipment Consulting
Before anything is installed, we confirm your appliances, HVAC and equipment are the right choices. Many companies skip this and just hand over a report — this step keeps you from buying the wrong gear.
Mid-Point Inspection
Once framing is done, we verify insulation and air sealing are installed correctly and to code, capturing what the HERS report depends on before drywall goes up.
Final Testing
We complete blower-door testing, duct-leakage testing and ERV balancing. Proper ERV balancing is critical, since an unbalanced system can create pressure problems throughout the home.
Final Certificate
Finally, we issue the signed HERS certificate to close out your building permit and set you up to apply for the Mass Save rebates you’ve earned.
A Plain Guide to the Arlington HERS Index
One HERS number captures how energy-efficient a home is designed to be, and the counterintuitive rule is that lower always beats higher. It is the national scale for measuring a home's energy demand.
The comparison point
A newly built reference home carries a score of 100. Because each Arlington home is measured against that same point, one score can be weighed fairly against another.
Approaching zero
A rating of 0 means the home makes as much energy over a year as it uses. Arlington projects reaching toward it combine well-sealed shells with efficient equipment.
Every point counts
Each point is worth roughly one percent of modeled energy use, so an Arlington home scoring 60 uses about 40 percent less energy than the reference home — savings felt on each bill.
The Diagnostics That Produce an Arlington HERS Rating
A HERS score comes from measured evidence, not estimates. Three diagnostics carry most of an Arlington rating.
- Energy modeling. We render your Arlington plans as an energy model — insulation, windows, mechanical systems and air sealing all included — to forecast the score and flag the best places to improve before ground is broken.
- Blower-door testing. A calibrated fan draws the house to a set pressure so we can gauge envelope leakage precisely. A tighter shell means a lower Arlington score and a more comfortable home.
- Duct-leakage testing. When ducts move conditioned air, we pressurize them to locate leaks into unconditioned space — a hidden loss that steadily raises an Arlington HERS number.
HERS Ratings and the Massachusetts Stretch Code in Arlington
Massachusetts enforces one of the country's most demanding energy codes, and a HERS rating is a recognized way to demonstrate that an Arlington home complies.
Rooted in IECC 2021
The state Stretch Code builds on the 2021 International Energy Conservation Code with Massachusetts amendments under 225 CMR 22. A RESNET-certified HERS rating is one accepted way an Arlington project shows it complies.
Fuel type resets the target
All-electric and fossil-fuel homes meet different standards, and all-electric designs earn HERS-point credits. We help Arlington owners understand how heating and hot-water choices affect both the score and the target.
A route to Mass Save
A strong HERS score can also unlock rebates through Mass Save, the statewide efficiency program. As a Mass Save partner, we help Arlington clients line the rating up with the incentives they qualify for.
Verify the current code
Because code editions are revised over time, the definitive reference is the state's Stretch Energy Code page. We keep every Arlington rating aligned with the edition in force.
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 Arlington 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 Arlington MA
Common questions about HERS ratings in Arlington, 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 Arlington cost?
A HERS rating in Arlington 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 Arlington?
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 Arlington?
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 Arlington?
If Arlington 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 Arlington?
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 Arlington?
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 Arlington?
We are a certified RESNET HERS rater serving Arlington and the surrounding area. We provide HERS ratings for new construction, additions, and renovations.
HERS Score Requirements in Arlington 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.
| Building type | New construction (permits after July 1, 2024) | New construction with embodied carbon credit | Accessory Dwelling Units | Major alterations, additions, or change of use |
|---|---|---|---|---|
| Mixed-Fuel Building | HERS 42 | HERS 45 | HERS 52 | HERS 65 |
| Solar Electric Generation | HERS 42 | HERS 45 | HERS 55 | HERS 70 |
| All-Electric Building | HERS 45 | HERS 48 | HERS 55 | HERS 70 |
| Solar Electric & All-Electric Building | HERS 45 | HERS 48 | HERS 58 | HERS 75 |
Each row in this table marks another tightening of the rules that Arlington homes have to meet. Back in 2022 a new build satisfied the code at HERS 55; the 2023 update lowered that to 52; and the July 2024 change set today’s targets at 42 for fossil-fuel homes and 45 for all-electric ones. The threshold you’re graded against is fixed by your permit date, which is why an Arlington plan carried over from an earlier year can suddenly fall short — we sidestep that surprise by modeling every home against the code that governs its specific permit.
Experience & Track Record in Arlington
Arlington renovations and new builds deserve a rater who understands construction from the inside — ours has 25-plus years of it before the certifications.
Construction experience
Our owner’s decades of building experience translate into Arlington energy advice you can actually execute on site.
Unrestricted CSL License
The Unrestricted Construction Supervisor License means Arlington code is familiar territory, from structure through systems.
Certified & Mass Save partner
RESNET certification and Mass Save partnership keep your Arlington rating credible with inspectors and rebate programs alike.
Mechanical Ventilation Requirements in Arlington
Hitting a low HERS Index in Arlington means building a very airtight, well-insulated home — and a tight home needs controlled mechanical ventilation to stay healthy. The energy code pairs air-sealing with a whole-house ventilation system so fresh air is delivered on purpose rather than through random leaks.
Continuous whole-house ventilation
A whole-house system runs continuously and is sized to ASHRAE 62.2. The minimum airflow follows code equation R403.6: Q = 0.03 × CFA + 7.5 × (Nbr + 1) − 0.052 × Q50 × S × WSF, where CFA is conditioned floor area, Nbr is the number of bedrooms, S is the building-height factor, and WSF is the shielded weather factor for the county. The blower-door result converts with Q50 = (V × 2·ACH50) / 60, using conditioned volume V.
Balanced ERV / HRV
In our cold climate (zone 5A), balanced heat- or energy-recovery ventilation is the practical way to hit a low HERS score. An ERV or HRV supplies fresh air and exhausts stale air while recovering most of the heat between the two streams, so ventilation does not wreck the energy target.
Local exhaust
Kitchens and bathrooms still need local spot exhaust in addition to the whole-house system — vented to the outdoors, not into an attic or crawlspace — to remove moisture and cooking pollutants at the source.
Source: Massachusetts 2025 Stretch & Specialized Codes Technical Guidance (residential ventilation — IRC M1505 / ASHRAE 62.2).
EV-Ready Requirements in Arlington
New homes in Arlington must be wired so an electric-vehicle charger can be added later without opening up finished walls. Under the Massachusetts Stretch Code, “EV-Ready” means the rough electrical infrastructure is in place at the time of construction — here is what that involves.
Dedicated circuit
A 40-amp, 208/240-volt branch circuit is reserved for each dwelling’s parking space, sized to run a Level 2 charger.
Panel capacity
Electrical-panel space and labeled capacity are reserved so a future Level 2 charger can be added without a service upgrade.
Conduit & outlet
A raceway or conduit is run to the parking area so the charger installs quickly when the homeowner is ready.
Source: Massachusetts 2025 Stretch & Specialized Codes Technical Guidance (EV-Ready / Section R404.4).
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
The tables that follow detail the Mass Save incentives open to Arlington projects. New builds and major renovations are rewarded through separate programs, and the incentive grows as your HERS score falls further below the code target — the more efficient your Arlington home, the more you get back. We run the modeling and handle the submissions so your project claims every incentive it is due.
A HERS rating can unlock Mass Save incentives for eligible projects in Arlington. 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.
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 Arlington MA
Contact Home Energy Efficiency Consultants today for certified HERS ratings and project support in Arlington, Massachusetts.
HERS Ratings Across Arlington and Nearby Communities
Home Energy Efficiency Consultants rates new homes, additions, and major renovations throughout Arlington — from Arlington Center, East Arlington, and Arlington Heights to Brackett and Morningside. Every Arlington project is filed with the Town of Arlington Inspectional Services Department, and we handle the energy model, blower door and duct leakage testing, and the compliance paperwork from start to finish.
We also serve the communities right around Arlington, including Cambridge, Somerville, Medford, Belmont, and Winchester. Our Somerville office at 519 Broadway is the closest of our four Massachusetts locations — see our Somerville office or call (617) 501-6788 to get a Arlington rating on the schedule.
Arlington Specialized Energy Code — HERS Index Targets
Arlington enforces the Massachusetts Specialized (Opt-In) Energy Code. The required HERS score depends on fuel type and project scope — a lower index is stricter. As a fossil-fuel-free community, new construction in Arlington must be built all-electric, so the all-electric columns apply.
| Project type | Mixed-fuel | Mixed-fuel + solar | All-electric | All-electric + solar |
|---|---|---|---|---|
| New construction | HERS 42 | 42 | 45 | 45 |
| New construction — embodied-carbon credit | 45 | 45 | 48 | 48 |
| Accessory dwelling unit (ADU) | 52 | 55 | 55 | 58 |
| Major alteration / renovation / change of use | 65 | 70 | 70 | 75 |
A HERS rating is triggered by new construction, additions over 1,000 sq ft (or more than 100% of the existing conditioned area), and Level 3 alterations over 1,000 sq ft affecting more than 50% of the home. New homes must also pass a blower-door test at 3.0 ACH50 and include electrification-ready wiring for heat pumps, EV charging, and solar. We model your Arlington project up front so you know the exact target and the fastest path to hit it — call (617) 501-6788.
More Massachusetts Towns We Serve
Certified HERS ratings, blower door testing and energy code compliance across all 351 Massachusetts cities and towns.
Arlington Enforces the Massachusetts Specialized Code
Arlington is one of just 60 Massachusetts municipalities (as of June 2026) that have adopted the Specialized opt-in energy code — the state’s most demanding standard, covering about a third of Massachusetts residents. For new homes in Arlington this means the full HERS pathway — HERS 42 for mixed-fuel homes, 45 for all-electric (48 with the embodied carbon credit) — plus electrification-ready wiring requirements that go beyond the standard Stretch Code used in most of the state.
Practical impact for Arlington projects: plan for a blower door result of 3.0 ACH50 or better, balanced ERV/HRV ventilation, and either all-electric mechanicals or wiring sized for future electrification. Our raters work in Arlington regularly — see the full inspection sequence or call (617) 501-6788 for a same-day preliminary HERS report.
