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

Avatar for NRG Masters
NRG Masters
4.5(
422
)
Energy Audit - For BusinessHome Energy Audit

Serving Green, OH and surrounding areas

In business since 1983

Free estimates

Credit card accepted

"I participated in Dominion's Energy Efficiency Rebate program, which NRG Masters (dba Northcoast Energy Masters) is a participating contractor. Of the three quotes received, NRG Masters and one other contractor were competitively priced. However that other contractor do not spray foam gaps in basement. NRG Master crew arrived on time on scheduled date, they properly sealed the attic entrance so the cellulose does not blow throughout the house and to keep my pets from going upstairs. Wall insulation was performed outside, where they removed the siding, blew in cellulose into the wall and ,closed the opening and reinstalled the removed siding. They spray foamed rim joists all around the basement perimeter and a big gap where the kitchen bumped out, such that one of my cats tend to climb into and where she cannot be reached. They insulated it and closed it with dry wall so my cat can no longer go in. The crew cleaned up the work areas, They vacuum the attic, and cleaned up the basement area, though they missed some of the small spray foam drippings, which were easily removed on the concrete ground, which I believed to be not an issue. A week later I opened the attic storage area, some of the cellulose blew in. I had to followed up multiple times with e-mails and phone calls to get a return call and schedule a follow up to fix the problem. Ray said the cellulose blowing in is from the gable vent, which may have been overstuffed with cellulose. A month later, the crew came back to clean up the cellulose. Months later, I followed up with another energy audit from Dominion's program. I learned the home energy efficiency for my house improved from 2800 (before the insulation work) CFM50 (blow door test) to 2100 as proposed by NRG Master. I, also, followed up with Dominion regarding the status of my rebate, and I learned that Ray did not submit the paper work required for the rebate. I followed up with multiple calls and e-mails. At the same time Dominion representatives also reached out to him. A few weeks later, I learned that Dominion did speak with Ray and he submitted the necessary paper work, and a month later, I did get my rebate check. The slow responsiveness received from NRG Master may be attributed to their busy schedule, I had to wait about one month and half before they could perform the work at my house, so it is understandable that arising issues and filing paper work can fall to the side, though not acceptable from a customer perspective."
SoftLite Window
Anderson Windows
Attic Insulation
Wall Insulation
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+5

Recommended by95%of homeowners
Regency Windows Corp.
4.7(
29
)
Home Energy Audit

Serving Green, OH and surrounding areas

In business since 1971

Free estimates

Warranties offered

"I had an Energy audit performed on my house. The equipment used during the audit and the knowledge of the auditor was good. However, the report was useless. I was employed as a Quality Manager / Quality Engineer for over 35 years and I have performed numerous audits. And without a doubt, the auditors should used a recorder to propely document the results of the audit. Some of the things that should be in th report are, the significant areas of heat loss in each room, (including loacation of the heat losses), potential savings for reducing the major area of heat loss, the temperature difference incoming outside air and room temperature."
Recommended by92%of homeowners
Avatar for Renewable Engineered Systems
Renewable Engineered Systems
4.7(
12
)
Energy Audit - For BusinessHome Energy Audit

Serving Green, OH and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Wonderful, it was a very quick and easy process. Brian talked us through it and in no time we had a 3KW system mounted on a frame in the garden and the invertor installed in the basement. Brian talked us through working with our power company to get the system checked and approved and we now get credits from the power company for power we provide to the grid. In addition we are set up to get Solar Renewable Energy Credits (SRECs) payments for providing clean energy. We also got a free Energy Audit which helped locate some problems areas we were able to fix. The system has basically cut our energy costs in half. I have hesitation in recommending them to anyone interested in solar energy."
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+14

Recommended by100%of homeowners
A New Image Heating and Cooling
4.7(
50
)
Energy Audit - For BusinessHome Energy Audit

Serving Green, OH and surrounding areas

In business since 1982

Free estimates

Emergency services offered

"I contacted the company to look at my 12 year old furnace which was not working. The repair tech showed up and was able to determine that a blocked condensation drain had allowed water to back up into some switches and cause damage to them. The cost to replace them and another component were more than half the cost of a new furnace.  The decision was made to replace the existing furnace. The company services mostly residential and light commercial, this appealed to me. The showed up as planned and went about their job, and at the end of the day I had a new furnace. The old one was hauled away and the job site was left as clean as they found it. Great Job!
"
Recommended by95%of homeowners
Avatar for North Coast Insulation and Ventilation
North Coast Insulation and Ventilation
4.5(
77
)
Energy Audit - For BusinessHome Energy Audit

Serving Green, OH and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"It went well with the workers arriving when expected and cleaning up when done. It took them 2 days. They did a great job and were cheaper than another one of our estimates.
We decided to get some insulation following a report from Dominion's Home Energy Audit Program called GoodCents which told us that our over 100 year old home had almost no insulation.
North Coast Insulation is a company recommended by Angie's List and one that often works with GoodCents. GoodCents came out after the insulation was installed and inspected it. We were told that the air leakage from the house had gone down 40%. We also will get over $1000 back from a rebate.
"
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+5

Recommended by91%of homeowners
Avatar for Roveda & Associates
Roveda & Associates
4.5(
1
)
Home Energy Audit

Serving Green, OH and surrounding areas

In business since 2010

Free estimates

Credit card accepted

Tony has performed thousands of home inspections over a 28 year career in Real Estate. We can do a top to bottom home inspection, with or without Radon, or we can help you navigate the new construction mistakes that come from the emotionally motivated mine field of "gotta have that" as well as advise you how to upgrading your home room by room for maximum return on your investment. \n \nTony was also a HUD 203K Inspector/Consultant and a certified appraiser.

Typical Home
Response time4 hrs
Recommended by100%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

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. 

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

Yes, including optimizing settings and suggesting upgrades if needed.

An average, 400-square-foot electric heated driveways consume approximately $3 per hour in terms of electricity. The price may slightly fluctuate depending on your local energy cost. A simple formula to calculate your heated driveway’s total wattage consumption is by multiplying the square footage by 50 watts and then dividing it by 1,000 to get the kilowatt number. Multiply that with your local energy cost per hour and there you have the hourly operating cost.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

The Green, OH homeowners’ guide to energy efficiency auditing services

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