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Verified Reviews for Energy Efficiency Auditing pros in Illiopolis, IL

*The Angi rating for Energy Efficiency Auditing companies in Illiopolis, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Illiopolis, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on November 22, 2025

Find Energy efficiency auditors in Illiopolis

Green Home Inspections & Energy Auditing Inc

4.69(
13
)

Green Home Inspections & Energy Auditing Inc

4.69(
13
)
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Green Home Weatherization has partnered with Ameren Illinois Act on Energy to provide you with instant rebates on the air sealing, insulation and duct sealing. These rebates will be subtracted from your bill so that you don’t have to fill out rebate forms or wait for the rebate check. This is another way that Green Home Weatherization stands out against the competition.

Green Home Weatherization has partnered with Ameren Illinois Act on Energy to provide you with instant rebates on the air sealing, insulation and duct sealing. These rebates will be subtracted from your bill so that you don’t have to fill out rebate forms or wait for the rebate check. This is another way that Green Home Weatherization stands out against the competition.

Avatar for StraightUp Solar

StraightUp Solar

4.57(
14
)

StraightUp Solar

4.57(
14
)
Customers say: Quality work
2006 years of experience

StraightUp Solar is a BBB A+, locally owned Certified B Corp founded in 2006. StraightUp Solar has completed more than 1,700 solar energy installations totaling over 22 MW, and continues to serve the region from offices located in Bloomington, Illinois and St. Louis, Missouri. StraightUp Solar is a member-owner in both the Amicus Solar Cooperative and the Amicus O&M Cooperative, and is proud to be an active voice in the Illinois Solar Energy Association. Solar Design & Installation, Energy Storage/Solar Battery, Solar Service & Maintenance, Electric Vehicle Charging Stations, Solar Remove & Replace

StraightUp Solar is a BBB A+, locally owned Certified B Corp founded in 2006. StraightUp Solar has completed more than 1,700 solar energy installations totaling over 22 MW, and continues to serve the region from offices located in Bloomington, Illinois and St. Louis, Missouri. StraightUp Solar is a member-owner in both the Amicus Solar Cooperative and the Amicus O&M Cooperative, and is proud to be an active voice in the Illinois Solar Energy Association. Solar Design & Installation, Energy Storage/Solar Battery, Solar Service & Maintenance, Electric Vehicle Charging Stations, Solar Remove & Replace

Avatar for Capital Weatherization LLC

Capital Weatherization LLC

5.00(
2
)

Capital Weatherization LLC

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a full service Home Performance Contractor. We are a owner-operated company that combines passion and science to make your home more comfortable and efficient. The owners are on site with their employees during all installations.

"Tim & his crew did a great job. They showed up on time & protected our floors with tarps. They worked hard all day with bitter temps outside, and they cleaned up afterwards. Our house feels more comfortable throughout. Looking forward to seeing the changes in our power costs."

Amy D on February 2018

We are a full service Home Performance Contractor. We are a owner-operated company that combines passion and science to make your home more comfortable and efficient. The owners are on site with their employees during all installations.

"Tim & his crew did a great job. They showed up on time & protected our floors with tarps. They worked hard all day with bitter temps outside, and they cleaned up afterwards. Our house feels more comfortable throughout. Looking forward to seeing the changes in our power costs."

Amy D on February 2018

Kinkade Enterprises

5.00(
1
)

Kinkade Enterprises

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Kinkade Enterprises strives to be a leader in providing value-added remodeling services to our customers by creating a successful partnership with them throughout the construction process. Our pledge is to establish lasting relationships with our customers by exceeding their expectations and gaining their trust through exceptional performance.

Kinkade Enterprises strives to be a leader in providing value-added remodeling services to our customers by creating a successful partnership with them throughout the construction process. Our pledge is to establish lasting relationships with our customers by exceeding their expectations and gaining their trust through exceptional performance.

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
2015 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Dan Eirhart Construction, Inc

No reviews yet

Dan Eirhart Construction, Inc

No reviews yet
1994 years of experience

We are a BPI Certified company and a registered program ally of the ActOnEnergy Effeciency Programs. We work with these programs to provide our customers the maximum discounts available for home energy improvements. Our home energy audits use the most scientific approach (blower door test, infrared, etc.) to discover heating and cooling losses in your home. Once these weak spots are revealed, our team goes to work insulating, sealing and repairing the troublesome areas, leaving your home energy efficient and saving you money.

We are a BPI Certified company and a registered program ally of the ActOnEnergy Effeciency Programs. We work with these programs to provide our customers the maximum discounts available for home energy improvements. Our home energy audits use the most scientific approach (blower door test, infrared, etc.) to discover heating and cooling losses in your home. Once these weak spots are revealed, our team goes to work insulating, sealing and repairing the troublesome areas, leaving your home energy efficient and saving you money.

Direct Solar of America

No reviews yet

Direct Solar of America

No reviews yet
2011 years of experience

Our second-to-none brokerage model benefits our customers by making sure they see increased benefits and complete satisfaction, while we make sure they realize the most optimal cost savings. With various financing options, multiple choices for Solar Power technology, and installation our customers value our extensive experience in creating customized solutions that meet their needs. After years of experience and more than 3,500 homes powered with the help of our solar brokerage services, we think the choice is clear! Direct Solar America is a subsidiary of Single Point, Inc. (OTC: SING).

Our second-to-none brokerage model benefits our customers by making sure they see increased benefits and complete satisfaction, while we make sure they realize the most optimal cost savings. With various financing options, multiple choices for Solar Power technology, and installation our customers value our extensive experience in creating customized solutions that meet their needs. After years of experience and more than 3,500 homes powered with the help of our solar brokerage services, we think the choice is clear! Direct Solar America is a subsidiary of Single Point, Inc. (OTC: SING).

Avatar for Shivering Shingles Heating and Air

Shivering Shingles Heating and Air

No reviews yet

Shivering Shingles Heating and Air

No reviews yet
2015 years of experience

Shivering Shingles Heating and Air specializes in energy efficiency bringing you the most for your heating and cooling dollar. We are a Ruud and Fujitsu dealer servicing most of central Illinois. We offer financing, and are also a registered Ameren Illinois ally offering special discounts for choosing energy efficient equipment. We frequently offer specials on our facebook page at Facebook.com/shiveringshingles

Shivering Shingles Heating and Air specializes in energy efficiency bringing you the most for your heating and cooling dollar. We are a Ruud and Fujitsu dealer servicing most of central Illinois. We offer financing, and are also a registered Ameren Illinois ally offering special discounts for choosing energy efficient equipment. We frequently offer specials on our facebook page at Facebook.com/shiveringshingles

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Energy Efficiency Auditing questions, answered by experts

Gas fireplaces use either natural gas or propane—both of which will increase your energy expenses. On average, running a gas fireplace costs $400 to $640 per year; however, these costs can vary significantly depending on the fuel price in your area and the frequency of fireplace use. If you’re looking for a more energy-efficient option, consider switching to an electric fireplace.

As you look for the right soundproofing drywall for you, you’ll likely come across the Sound Transmission Class (STC) rating. This rating measures a building material’s ability to absorb sound. The higher the number, the better the material absorbs rather than reflects sound, reducing noise transmission. The STC rating for drywall doesn’t mean it’s for the panel itself—it refers to the STC rating for the entire wall system, including the soundproofing drywall.

Hawaii is currently rated as the most expensive state for utilities. How much are utilities for a house in Hawaii? With electricity costs in Hawaii totaling nearly 42 cents per kilowatt-hour, residents are paying more to run their households than any other residents. Electricity costs in Hawaii are so high, mostly due to the fact that most of the electricity available to residents is produced using oil that must be shipped in from other places.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

A whole-home humidifier can impact your energy bill positively. In colder months, humidified air feels warmer, allowing you to lower your thermostat without sacrificing comfort. This can lead to energy savings as your heating system works more efficiently. However, it's crucial to use the humidifier judiciously to avoid excessive humidity, which might strain your cooling system in warmer months.

The Illiopolis, 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.

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