
Grafton, MA · Worcester County
Energy Audits & HERS Ratings in Grafton, MA
HERS ratings and energy code testing for builders across Worcester County, plus energy assessments for existing homes in Grafton.
Why BCI Group
Know exactly where your Grafton home loses energy
For builders, a HERS rating is often how a new home shows it meets the Massachusetts energy code, especially in Stretch and Specialized code towns. Our raters work with you from plan review through final testing in Grafton.
In older homes, a blower door test shows exactly where air leaks, so upgrades go where they matter most.
Grafton is minutes from our Westborough, MA headquarters, so estimates and follow-up visits are easy to schedule.
- Help with Mass Save® steps
- Blower door and duct leakage testing
- Prioritized upgrade recommendations
- Thermal imaging to find hidden leaks

Applications
Energy services we provide in Grafton
These are the energy services Grafton homeowners and builders ask for most.

Before and after testing
Proof that air sealing and insulation made a difference.
Blower door testing
Measures how much air leaks through the building shell.
Plan review for builders
Early modeling to choose cost-effective assemblies.Local homes
What Grafton homes need
Grafton has historic homes around Grafton Common and in villages such as North Grafton and Fisherville, plus newer subdivisions built over the last few decades.
Grafton's villages, including North Grafton, South Grafton, Fisherville, Farnumsville and Saundersville, grew around mills on the Blackstone and Quinsigamond rivers, while newer neighborhoods spread out from Grafton Common. That mix means we often see antique homes and newer colonials on the same street.
Worcester County is the largest county in Massachusetts by area, and it spans hill towns, mill villages and fast-growing suburbs, so housing ages and heating fuels vary a lot from town to town.
Grafton at a glance
- Region
- Central Massachusetts
- County
- Worcester County
- Climate zone
- 5A
- From our Westborough office
- Under 15 miles
- Efficiency program
- Mass Save®

Recommended plan
Our assessment plan for a typical older home in Grafton
Measure leakage
A blower door test sets the baseline.
Find the bypasses
Thermal imaging shows the hidden paths in old framing.
Check safety
We look at combustion safety and ventilation.
Plan the work
You get a prioritized, written plan.
For new homes, HERS ratings and blower door tests are part of meeting the Massachusetts energy code.
Climate, code & rebates
Insulation targets and incentives in Grafton

Climate & code
Climate zone 5A targets
In climate zone 5A, which includes Grafton, recommended attic levels are R-49 to R-60, well above what most homes built before the 1980s were given. Many Massachusetts towns have adopted the Stretch Energy Code or the Specialized Opt-in Code, which raise insulation and air-sealing requirements for new construction and major renovations.

Incentives
Mass Save® in Massachusetts
Mass Save® offers a no-cost assessment and incentives for approved insulation and air sealing, with enhanced incentives for income-eligible households. We confirm what applies to your home before work starts.
About Mass Save® →How it works
From testing to a clear plan in Grafton
- 01
Walkthrough
We look at the home and listen to your concerns.
- 02
Measure
Testing shows how the home performs.
- 03
Explain
We go over the results in plain language.
- 04
Recommend
You get upgrades ranked by payback.
Pricing
How we price energy services in Grafton
We explain the scope and price clearly before any testing begins.
- Plan review and modeling
- New construction or existing home
- Pre-drywall inspections
- Tests needed
- Re-testing after upgrades

Our work
Testing and ratings like the ones we do in Grafton



FAQ
Energy Audits & HERS questions in Grafton, MA
Do I need to prepare?
Clear access to the attic, basement and heating system and close windows before the test.
Are your raters certified?
Yes. Our HERS raters are certified and work in-house at BCI Group.
Does a HERS rating help sell a home?
It documents performance, which can help buyers compare homes.
When should a builder call a HERS rater?
At plan review, before construction. Early modeling helps choose cost-effective insulation, windows and systems.
What is a HERS rating in Grafton?
A Home Energy Rating System score that measures a home's energy performance. Lower is better, and many new homes in Massachusetts use it to show code compliance.
What is a blower door test?
A fan mounted in an exterior door depressurizes the building to measure how much air leaks through the shell.
How soon can you start a energy assessment in Grafton?
Grafton is close to our Westborough, MA office, so estimates are usually easy to schedule. You'll get a start date with your written quote.
Do you also work in towns near Grafton?
Yes. Besides Grafton, we serve nearby communities such as Millbury, Upton and Westborough, along with the rest of Worcester County.
Nearby
More from BCI Group in Worcester County and beyond
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10+ Years
Serving New England
HERS Certified
In-house ratings
Mass Save®
Rebates handled
5 States
MA · NH · RI · CT · ME
