Wellesley, MA · Norfolk County
Energy Audits & HERS Ratings in Wellesley, MA
HERS ratings and energy code testing for builders across Norfolk County, plus energy assessments for existing homes in Wellesley.
Built for Wellesley
Know exactly where your Wellesley home loses energy
An energy assessment is also the first step toward Mass Save® incentives for many Wellesley homeowners. We explain the results in plain language and the upgrades with the best payback.
In older homes, a blower door test shows exactly where air leaks, so upgrades go where they matter most.
Wellesley is about 18 miles from our Westborough, MA headquarters, and our crews work across Norfolk County every week.
- Thermal imaging to find hidden leaks
- Energy code compliance for builders
- Testing before and after upgrades
- Blower door and duct leakage testing
Applications
Testing and ratings for Wellesley homes and builders
Every service starts with measuring, so recommendations are based on data, not guesses.
Blower door testing
Measures how much air leaks through the building shell.
Before and after testing
Proof that air sealing and insulation made a difference.
Plan review for builders
Early modeling to choose cost-effective assemblies.Local homes
What Wellesley homes need
Wellesley is known for large older colonials, Tudors and Victorians, many built before 1940, along with newer custom homes.
Wellesley's villages, including Wellesley Hills, Wellesley Farms, Lower Falls and the area around Wellesley Square, are known for large older colonials, Tudors and Victorians. Historic homes with plaster walls and slate roofs need insulation methods that protect original finishes.
Norfolk County stretches from coastal cities like Quincy to suburbs along I-95 and I-495, with housing that ranges from historic homes to newer subdivisions.
Wellesley at a glance
- Region
- Greater Boston
- County
- Norfolk County
- Climate zone
- 5A
- From our Westborough office
- About 18 miles
- Efficiency program
- Mass Save®
Recommended plan
An energy assessment plan for Wellesley older homes
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 Wellesley
Climate & code
Climate zone 5A targets
Wellesley is in IECC climate zone 5A. For attics in zones 5 and 6, ENERGY STAR recommends R-49 to R-60, and many existing homes here have far less. New construction and major renovations in Massachusetts follow the state energy code, and many towns have adopted the stricter Stretch or Specialized codes.
Incentives
Mass Save® in Massachusetts
Massachusetts homeowners can start with a no-cost Mass Save® Home Energy Assessment, which can lead to incentives for insulation and air sealing. As a Mass Save® partner, BCI Group helps you through the program steps.
About Mass Save® →How it works
How an energy assessment works in Wellesley
- 01
Plan review
For new homes, we model the design early.
- 02
Inspection
We check insulation and air sealing before drywall.
- 03
Final tests
Blower door and duct leakage tests at completion.
- 04
Rating
You receive the HERS rating and documents.
Pricing
How we price energy services in Wellesley
The size of the home, the tests needed and whether it is new construction drive the price.
- Tests needed
- Plan review and modeling
- Pre-drywall inspections
- Size and type of the home
- Re-testing after upgrades
Our work
Energy assessments in action
FAQ
Energy Audits & HERS questions in Wellesley, MA
Do you test multifamily buildings?
Yes. We test and rate single-family and multifamily projects.
How long does an assessment take?
Most homes take two to three hours on site.
Is a home energy assessment free?
Eligible Massachusetts customers can get a no-cost Mass Save® Home Energy Assessment. Other testing is quoted by project.
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.
Do I need to prepare?
Clear access to the attic, basement and heating system and close windows before the test.
What does thermal imaging show?
Temperature differences that reveal missing insulation, air leaks and sometimes moisture.
How soon can you start a energy assessment in Wellesley?
Our crews travel about 18 miles from Westborough, MA to Wellesley, and we group estimates and jobs by area. You'll get a start date with your written quote.
Do you also work in towns near Wellesley?
Yes. Besides Wellesley, we serve nearby communities such as Natick, Newton and Waltham, along with the rest of Norfolk County.
Nearby
More from BCI Group in Norfolk County and beyond
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10+ Years
Serving New England
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In-house ratings
Mass Save®
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