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TRUSTED BY STOW, MA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon32
    Verified energy efficiency auditing services reviews

Top-Rated Energy efficiency auditors in Stow - Updated Nov 2026

Avatar for Airco Home Comfort Services LLC
Airco Home Comfort Services LLC
4.7(
33
)
Energy Audit - For BusinessHome Energy Audit

Serving Stow, MA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I whole heartedly recommend Airco. Their team was experienced, skillful, friendly and professional throughout the duration of this job, from Joe's first visit to my home to discuss air conditioning options to Derek and Cam's final touches on the duct system. I had complete confidence in them, as well as in Steve, Danny, Frank and Patrick. Additionally, Airco's connections to MassSave and Commerce Bank meant financing and payment options to suit my budget. No more hauling loud and heavy window a.c. units up from the basement. Instead, I am enjoying consistent cooling throughout my home with no noise whatsoever. I am a very happy customer!"
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+4

Response time2 days
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Gabriel Hahn
Gabriel Hahn
New to Angi
Home Energy Audit

Serving Stow, MA and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Credit card accepted

I conduct energy audit tests for homes, whether they are colonial or brand new construction. I can recommend you various forms of weathersealant, thermal wrappings, and storm window techniques, saving you thousands in the form of long-term heat insulation tech-forward solutions.

Avatar for Tingley Electric Services Inc
Tingley Electric Services Inc
4.7(
219
)
Energy Audit - For BusinessHome Energy Audit

Serving Stow, MA and surrounding areas

In business since 2003

Credit card accepted

"We have not had work done yet. This Is review of inspection and estimate of work. They called us because they had a cancellation and could fit us in a couple of days early. That was appreciated. Estimate was clearly explained. Employees were professional and pleasant. We plan to follow up with them on the work. Also company shows good use of technology in providing updates and documentation along they way."
Our Staff
Our Staff
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+1

Recommended by95%of homeowners
Avatar for The Energy Monster MA, Inc.
The Energy Monster MA, Inc.
4.2(
14
)
Home Energy Audit

Serving Stow, MA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"My house had problems with ice dams and ice build up on the roof. After they installed air sealing and cellulose the issues went away. Our house is more comfortable and stays warmer longer. The installers had a professional appearance and great customer service. Plus they were able to find us rebates thru the utility company to help pay for the project. Highly recommended!"
Mitsubishi Ductless Mini Splits
Holland, MA (5.3KW)
Marlboro,MA (7.8KW)
Energy Audits in MA
Response time2 days
Recommended by100%of homeowners
Avatar for JB's Home Energy, LLC
JB's Home Energy, LLC
4.6(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Stow, MA and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"This pro did a nice quality job for the most part friendly, clean, shoes off while in the house, the blower door test was great. The thermal imaging was a bit lacking no actual thermal imaging gun but some kind of app on his phone not worth what was charged for it. All in all house is pretty tight with just a couple questionable areas that I can take care of I would recommend the blower door test for sure."
Work
Work
Work
Work
Work

+3

Response time2 days
Recommended by100%of homeowners
Avatar for American Energy Revolution
American Energy Revolution
5.0(
1
)
Home Energy Audit

Serving Stow, MA and surrounding areas

In business since 2022

Free estimates

Emergency services offered

American Energy Revolution is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

25 Years Savings
Locked in 25yr kWh rate
Solar panels
Solar panels
Response time8 hrs
Dr. Energy Saver
3.1(
23
)
Home Energy Audit

Serving Stow, MA and surrounding areas

In business since 1994

Free estimates

Warranties offered

"My project has not started and is scheduled for middle of May. My rating at this time is for the overall interest shown from the beginning. Examples, I was immediately contacted to set up an appointment to review my project. This lasted two hours going over everything from top to bottom. Included was what is called a blower door energy audit. Plus other devices used to show where much energy was being lost/wasted. A lot of effort and feedback was provided many situations were pointed out to me in order that the job be completed professionally."
 Almost Done
Our double contoured Window
 Sunrise Replacement Windows
 The old window that was Leaking Air
 Here's a closer look at the SuperDeck and how it

+24

Recommended by83%of homeowners
Avatar for Vista Home Improvement
Vista Home Improvement
4.3(
419
)
Energy Audit - For BusinessHome Energy Audit

Serving Stow, MA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Yes the work was done. The two guys that came put in 7 windows and two big bay windows in one day. They did not even taken a break. They cleaned up the small pieces of scrap. Then one week later they came back and put in two new doors with the same professionalism when they did my doors."
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+41

Recommended by87%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Yes, advising on models that save electricity and reduce utility bills.

Replacing a window frame will improve your home’s energy efficiency if the old frame is cracked or damaged in a way that allows unconditioned air from the outside into your living space or if you upgrade to a more energy-efficient window frame material. Aluminum is the least energy-efficient window frame material, followed by vinyl and wood. Fiberglass and composite frames are the most energy-efficient.

There is no blanket figure for a residential home’s electrical load, since load varies by the size of the home, how many appliances are used, and the efficiency of their electrical systems. Typically, however, it’s safe to assume 40 to 60 amps is the average electrical load of a residential home. 

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

A home energy audit costs about $420 on average, with prices ranging from $100 to $2,250 or more. The final cost depends on factors like your home's size, location, the thoroughness of the audit, and the specific tests performed. A basic Level 1 walk-through inspection typically costs between $150 and $200, while a comprehensive Level 3 audit with detailed testing and a report costs around $900. Homeowners may be able to use the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit to cover up to $150 of the audit cost.

Costs for common individual tests include:

  • Blower door test: $350

  • Duct testing: $100

  • HERS test: $375

  • HERS certification: $200

  • Infrared imaging: $200

The Stow, MA homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.