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Best energy efficiency auditors near Mchenry, IL

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

Avatar for Daniel Nagel
Daniel Nagel
4.6(
42
)
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Overall working with Dan was a great experience. I had hired Dan to perform an energy audit. I had the attic insulated to R-38, but one room was still rather chilly. I needed the audit to pinpoint the issue. Now I know each area of infiltration and how to address each. Finally, Dan spotted an issue with my hot water heater. I'm especially grateful of this last point. Dan obviously knows his stuff and has the experience to back it up. I highly recommend him for energy audits."
Response time1 day
Recommended by100%of homeowners
Avatar for Regional Plumbing Heating & Air
Regional Plumbing Heating & Air
5.0(
15
)
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

We are family owned and operated. We service all brands, makes and models. From furnace and water heater repair and replacements, all the way to a leaking kitchen faucet or bathroom toilet. One call REALLY does it all. Faucets, toilets, sinks, drain rodding, water heaters, boilers, furnaces, air conditioners and humidifiers. New construction to radiant heat. You know you called the pros the first time. Licensed, bonded and insured, we offer easy approval and affordable financing as well!

16 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,540
)
Home Energy Audit

Serving Mchenry, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"We had a dirt floor crawl space and a concrete floor crawl space in our home. Both spaces were very cold and nasty looking. We wanted a solution that would help us become more energy efficient and at the same time create some additional storage space. We initially met with a Perma Seal consultant who walked us through what could be done. He suggested we start by installing insulation in both spaces-which we did through another vendor-and then Perma Seal would install their vinyl liner into the space. Long story short the liners are great-the spaces are bright, clean and dry and we now have a lot more storage space."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate100%
47 neighbors recently requested a quote
Goodman Home Inspections, LLC
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

Approved

My name is Darryl Goodman and I am retired from the military after 26 years of successful service. As a home inspector, I bring with me a strong foundation of professionalism, hard work, and a meticulous attention to detail. Leveraging extensive experience in both civilian and military construction, I possess a unique skill set that enhances my ability to assess and ensure the safety and integrity of residential properties.

Avatar for Air Solutions Heating Air-Conditioning Duct Cleaning
Air Solutions Heating Air-Conditioning Duct Cleaning
4.9(
67
)
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

Why the importance of family owned? Why does it matter? It matters because it means we are long term, and we care at a level that is hard for large corporations to understand. We are an HVAC contractor who will be here tomorrow, and the next day. Not a fly-by-night dealer gone when you need us most. \nFamily-owned also ensures you will experience a level of customer service that is unique to family-owned companies. We understand the importance of reliable and efficient air conditioning, heating and indoor air quality products for our own homes and office, and we know that the same is important to you. For this reason we provide our customers with the latest in heating and air conditioning technology - products that we would trust in our own home.

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Recommended by98%of homeowners
Avatar for AVI Alliance Systems
AVI Alliance Systems
5.0(
7
)
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

A family owned heating and air conditioning company provides high quality work. We specialize in the installation, service, repair, maintenance, and replacement of commercial & residential high-efficiency heating, air-conditioning, humidification. We service all makes and models of residential and light commercial heating & cooling equipment.

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+26

Recommended by100%of homeowners
Avatar for Midwest Spray Coatings A Perfect Crawlspace
Midwest Spray Coatings A Perfect Crawlspace
4.7(
193
)
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"Greg, the owner, came out on two occasions to discuss the crawl space and drain tile. He is extremely knowledgeable and experienced in the crawl space industry. We had a few options and he told me about the new spray product he was using. It is this unique seamless liner that is sprayed on after preparing and insulating the area.
His crew was very professional and easy to talk to. We had some scheduling conflicts that were easy to work around and get the job done when we needed it to be finished.
The difference we noticed in the smell in our basement, the effect the insulation and seamless lining had on the air conditioning in our family room (which is above the crawl space) was immediate. We feel cooler air coming through the duct work since it isn't losing energy traveling through a non insulated space anymore and they basement smells and feels normal since the dirt and concrete is now completely covered by the new liner.
That new product is great.
Greg's company also did drain tile work in our basement. It was a different crew than the group who did the crawl space, but they were equally as professional and easy to work with. Rather than break up the job into 3-4 days they stayed late the first day to get everything ready and prepared so they could complete the job quicker. The job was done the next day. The price was very fair and the crew was extremely clean throughout thew whole process.
We now have a water tight, well insulated basement and we couldn't be happier with the results.
I have told several friends about the experience and would recommend them anytime. From Greg down to each of his crew members they really know how to do a good job and work with the customer."
Exposed stone foundation
Foundation repair and insulation
Polyurea Coating
Ineffective fiberglass
Repairs to Foundation - Same Day

+16

Recommended by98%of homeowners
Avatar for Stop Wasting Energy At Home Inc
Stop Wasting Energy At Home Inc
3.5(
10
)
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

In business since 2010

"The work performed on the crack in the foundation of my house was done in a timely manner and the area around the house was left in good condition.  I have had no further water problems.
As for the insulation.  I noticed immediately that the temperature of the coldest bedroom improved after the addition of the insulation.  The set-up work area for the insulation was thoroughly clean-up when they were finished.  This project took less time than I thought it would.
I recommend using "Stop Wasting Energy At Home" for any work needed.
"
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Recommended by55%of homeowners
Avatar for R&J Solar LLC
R&J Solar LLC
5.0(
2
)
Energy Audit - For BusinessHome Energy Audit

Serving Mchenry, IL and surrounding areas

In business since 2022

Free estimates

Credit card accepted

We provide residential and commercial solar power options, and provide support services for industry partner companies. We offer no cost consultations and $0 down financing. Please contact our office for a consultation at (931)922-8258.

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+3

Recommended by100%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Smart glass doesn’t use a lot of electricity, and you can expect a standard window to add between $1 and $2 per year to your electric bills. Smart glass is proof that energy-efficient windows work. Although your smart windows may consume a little energy to operate, they can save enough energy to offset the costs. If you’re concerned about the minimal bump to your electricity consumption, you can opt for smart tint, which doesn’t require electricity to work.

Costs depend on pipe length, accessibility, and whether additional services are required.

Typically, triple-pane windows made with krypton gas filling are the most energy efficient. A window’s frame, glass, design, and installation all affect its energy efficiency. These windows, in particular, are designed highly effectively in terms of their ability to insulate.

Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.

Leaving lights on raises the electric bill, but not as much as having high-wattage light bulbs. The best way to save on electric costs is to swap your light bulbs to LED or CFL bulbs that use far fewer watts. You can also use smart lights and light switches to control usage via a smartphone or voice-controlled device.

The Mchenry, IL homeowners’ guide to energy efficiency auditing services

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