Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Normal, IL

Enter your ZIP and get matched with up to 5 pros

Need a pro for your energy efficiency auditing project in Normal, IL?

Select your specific project to find the pro for you.

Verified Reviews for Energy Efficiency Auditing pros in Normal, IL

*The Angi rating for Energy Efficiency Auditing companies in Normal, 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 Normal, 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 December 11, 2025

Find Energy efficiency auditors in Normal

Avatar for Pristine Inspections & Testing, Inc.

Pristine Inspections & Testing, Inc.

4.95(
132
)

Pristine Inspections & Testing, Inc.

4.95(
132
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Pristine Inspections & Testing consistently exceeds all industry standards with continuing education and training in all relevant home inspection areas. With a reputation for thoroughness and reliability, your home inspector is qualified to assist you with all of your inspection, radon testing or mold inspection needs. We bring to you integrity, professionalism and the training required to provide you with a detailed, comprehensive report, to assist you in making a more informed, unbiased decision. We provide our home inspection services in Champaign and surrounding areas! Pristine Inspections & Testing is committed to serving you, the client. We strive to maintain the highest level of training possible through continuing education with the Great Lakes Chapter of ASHI (American Society of Home Inspectors). We also maintain current membership with the professional and accredited association of ASHI. Pristine Inspections & Testing will have your report printed on site as well as a PDF copy of the report emailed to you the same day. Your understanding of the home inspection report is critical to our goal of providing the best customer service available. We encourage you to accompany the home inspector through the inspection process to receive a complete consultation and valuable orientation of the property and its systems.

"Was unable to attend the inspection but I was very pleased with the results. The report was highly detailed and included items that I never noticed during my two visits to the unit, such as missing grout against a threshold. Was pleased with attentive customer service too. One drawback was it was more expensive than I was expecting, but I think I received value for my money. Would use again and would recommend to others."

Tammy P on May 2025

Pristine Inspections & Testing consistently exceeds all industry standards with continuing education and training in all relevant home inspection areas. With a reputation for thoroughness and reliability, your home inspector is qualified to assist you with all of your inspection, radon testing or mold inspection needs. We bring to you integrity, professionalism and the training required to provide you with a detailed, comprehensive report, to assist you in making a more informed, unbiased decision. We provide our home inspection services in Champaign and surrounding areas! Pristine Inspections & Testing is committed to serving you, the client. We strive to maintain the highest level of training possible through continuing education with the Great Lakes Chapter of ASHI (American Society of Home Inspectors). We also maintain current membership with the professional and accredited association of ASHI. Pristine Inspections & Testing will have your report printed on site as well as a PDF copy of the report emailed to you the same day. Your understanding of the home inspection report is critical to our goal of providing the best customer service available. We encourage you to accompany the home inspector through the inspection process to receive a complete consultation and valuable orientation of the property and its systems.

"Was unable to attend the inspection but I was very pleased with the results. The report was highly detailed and included items that I never noticed during my two visits to the unit, such as missing grout against a threshold. Was pleased with attentive customer service too. One drawback was it was more expensive than I was expecting, but I think I received value for my money. Would use again and would recommend to others."

Tammy P on May 2025

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 Popejoy Inc

Popejoy Inc

4.75(
12
)

Popejoy Inc

4.75(
12
)
Customers say: Super punctual
1984 years of experience

People pleasing solutions since 1984. Popejoy Incorporated is the premier dealer of all the latest commercial and residential products including Trane, Weil McLain, Generac, Northstar Products, Delta, and many more.

People pleasing solutions since 1984. Popejoy Incorporated is the premier dealer of all the latest commercial and residential products including Trane, Weil McLain, Generac, Northstar Products, Delta, and many more.

Avatar for Cronkhite Home solutions

Cronkhite Home solutions

4.41(
17
)

Cronkhite Home solutions

4.41(
17
)
Customers say: Quality work
2011 years of experience

Cronkhite Home Solutions has 20 years of experience providing quality home improvements at a fair price and excptional service. We focus on Energy Improvements for the home. These improvements include Reflective Attic Insulation, Solar Attic Fans, Replacement Windows, Energy Reducing Window Films, Entry Doors, Exterior Siding, and Leaf guards. We want to help homeowners in determining the right home improvements at the right time. We provide a Free 14 Point Home Energy Assessment with No Obligation. This allows us to evaluate the improvements needed and help design a plan of attack that makes sense and is affordable. www.cronkhitehomesolutions.com

"Like some of the other people have stated.. they are pricey and they are also extremely busy. We worked with Andy as the sales rep and he was a great guy. We told him what we were willing to spend at most and he made sure we got everything we wanted for that price. I think people who are new to construction work might see these guys as a hassle but in all honesty.. the men they had working for us were some of the hardest working and fastest working men I’ve ever met. Everything was done in a week and a half.. and it is STUNNING! My only complaint is that we were supposed to get it started 8 weeks after signing and it didn’t start til about 12 weeks.. like I said though.. it’s a very busy time of the year. COVID-19 has everyone at home with their honey-do list and EVERYWHERE is booked. I would absolutely recommend Cronkhite.. always negotiate on price.. and make sure to check the work being done. Don’t watch them do something wrong and complain about it after.. If you have questions then ask them!"

Stephanie M on October 2020

Cronkhite Home Solutions has 20 years of experience providing quality home improvements at a fair price and excptional service. We focus on Energy Improvements for the home. These improvements include Reflective Attic Insulation, Solar Attic Fans, Replacement Windows, Energy Reducing Window Films, Entry Doors, Exterior Siding, and Leaf guards. We want to help homeowners in determining the right home improvements at the right time. We provide a Free 14 Point Home Energy Assessment with No Obligation. This allows us to evaluate the improvements needed and help design a plan of attack that makes sense and is affordable. www.cronkhitehomesolutions.com

"Like some of the other people have stated.. they are pricey and they are also extremely busy. We worked with Andy as the sales rep and he was a great guy. We told him what we were willing to spend at most and he made sure we got everything we wanted for that price. I think people who are new to construction work might see these guys as a hassle but in all honesty.. the men they had working for us were some of the hardest working and fastest working men I’ve ever met. Everything was done in a week and a half.. and it is STUNNING! My only complaint is that we were supposed to get it started 8 weeks after signing and it didn’t start til about 12 weeks.. like I said though.. it’s a very busy time of the year. COVID-19 has everyone at home with their honey-do list and EVERYWHERE is booked. I would absolutely recommend Cronkhite.. always negotiate on price.. and make sure to check the work being done. Don’t watch them do something wrong and complain about it after.. If you have questions then ask them!"

Stephanie M on October 2020

Avatar for Energistics

Energistics

5.00(
3
)

Energistics

5.00(
3
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Energistics is all about comfort, quality and craftsmanship. We are experts in green building, energy efficiency and renewable energy (solar electric/ solar hot water). Our skills are applied in your home to:* Keep every room warm in the winter and cool in the summer * Improve indoor air quality * Ensure durability and long lasting, great looking results * Save you money every month in the process. Many of our products come with LIFETIME warranties and ALL are installed by Energistics crew to ensure the highest quality results. No sub-contractors here!!!

Energistics is all about comfort, quality and craftsmanship. We are experts in green building, energy efficiency and renewable energy (solar electric/ solar hot water). Our skills are applied in your home to:* Keep every room warm in the winter and cool in the summer * Improve indoor air quality * Ensure durability and long lasting, great looking results * Save you money every month in the process. Many of our products come with LIFETIME warranties and ALL are installed by Energistics crew to ensure the highest quality results. No sub-contractors here!!!

Avatar for Aire Serv of Bloomington

Aire Serv of Bloomington

5.00(
1
)

Aire Serv of Bloomington

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

Professional and reliable air conditioning and heating services by experienced technicians at reasonable prices!!!!

Professional and reliable air conditioning and heating services by experienced technicians at reasonable prices!!!!

WEBER ELECTRIC INC

5.00(
1
)

WEBER ELECTRIC INC

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

Weber Electric Inc has been serving the Bloomington Normal area and McLean county with all electrical needs for the last 31 years. John Weber and his staff are committed in providing timely service and quality workmanship at the best value to insure 100% customer satisfaction.

Weber Electric Inc has been serving the Bloomington Normal area and McLean county with all electrical needs for the last 31 years. John Weber and his staff are committed in providing timely service and quality workmanship at the best value to insure 100% customer satisfaction.

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!

Showing 1-10 of 20
Energy Efficiency Auditing questions, answered by experts

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

They’ll use more electricity than the average upright vacuum, but not remarkably more. Most power units plug into a standard 120-volt outlet and don’t have significant power demands. You shouldn’t notice an increase in electricity bills. If you have any specific questions about energy costs, ask your installer as you examine purchase decisions. Larger power units will need more electricity for their suction levels.

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.

Some types of electric fireplaces use more electricity than others. Models that produce 1,500 watts will have more of an effect on your heating bill than 750-watt models. 

Electric fireplaces use an average of $1.85 of electricity every eight hours. These minimal operational costs aren’t likely to make a big difference in your electric bill—unless you’re using it as a primary heating source for your home and it’s running most of the time.

STC (Sound Transmission Class) ratings tell you how well something blocks airborne noise. It’s a single number that sums up how much sound a material, like a window, can stop across regular speech frequencies. The higher the number, the better the sound reduction. A typical single-pane window hovers around STC 25 (where you can hear normal conversations), while well-sealed, double-pane options can push past STC 45 (which blocks out loud speech and most music). Just keep in mind that STC doesn’t cover everything—low rumbles like bass or thunder can sneak through—so pairing methods are always ideal for the most peace and quiet.

The Normal, 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.

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"