Top-rated energy efficiency auditors.

Get matched with top energy efficiency auditors in Aurora, IL

There are 12 highly-rated local energy efficiency auditors.

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

Select your specific project to find the pro for you.

TRUSTED BY AURORA, IL HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon12
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Aurora

Avatar for Energy Services Air Conditioning & Heating Co

Energy Services Air Conditioning & Heating Co

512 W 5th Ave
4.72(
927
)
Approved Pro

Energy Services Air Conditioning & Heating Co

512 W 5th Ave
4.72(
927
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
82 local quotes requested

At Energy Services Air Conditioning, Heating & Electrical, we go beyond the level of service you expect, and deliver the exceptional results you deserve. From routine system maintenance, to emergency repair, equipment upgrades and complete system install, our goal is to bring more expertise, resources, and professionalism to every job than any other HVAC service provider in Naperville, Aurora, Geneva, St. Charles & Wheaton IL. We offer flexible solutions for spaces large and small, customizing our designs to meet your exact needs, and providing the most cutting-edge products on the market. Cost is determined by the job. Additional Phones: (630) 969-1400, (630) 687-1383, (630) 420-2275. Fax: (630) 420-2096 DBA: GFI Heating & Cooling. Senior Discount: $5.00

"Tech came out and heard my concerns, went over the blower, and found that it had been mis-diagnosed of where the other company who installed it was looking. Hugely appreciated that the tech listened to what I was having a problem with and not exact information provided, and was able to provide me with information to go back to my install company with."

Grant P on October 2025

At Energy Services Air Conditioning, Heating & Electrical, we go beyond the level of service you expect, and deliver the exceptional results you deserve. From routine system maintenance, to emergency repair, equipment upgrades and complete system install, our goal is to bring more expertise, resources, and professionalism to every job than any other HVAC service provider in Naperville, Aurora, Geneva, St. Charles & Wheaton IL. We offer flexible solutions for spaces large and small, customizing our designs to meet your exact needs, and providing the most cutting-edge products on the market. Cost is determined by the job. Additional Phones: (630) 969-1400, (630) 687-1383, (630) 420-2275. Fax: (630) 420-2096 DBA: GFI Heating & Cooling. Senior Discount: $5.00

"Tech came out and heard my concerns, went over the blower, and found that it had been mis-diagnosed of where the other company who installed it was looking. Hugely appreciated that the tech listened to what I was having a problem with and not exact information provided, and was able to provide me with information to go back to my install company with."

Grant P on October 2025


Avatar for TR Miller Heating, Cooling, Plumbing and Electrical

TR Miller Heating, Cooling, Plumbing and Electrical

11917 S. Aero Dr.
4.56(
95
)
Approved Pro

TR Miller Heating, Cooling, Plumbing and Electrical

11917 S. Aero Dr.
4.56(
95
)
Approved Pro
Customers say: Super punctual
22 local quotes requested
17 years of experience

TR Miller Heating, Cooling, Plumbing and Electrical has provided the Plainfield, IL area with excellent HVAC, plumbing and electrical services since 2008. Offering straightforward pricing, emergency services and the latest technology, they will help with all of your home service needs. Call today to schedule your appointment!

"TR Miller Heating, Cooling & Plumbing I think an obvious first step for the company is to be more upfront with pricing. By offering an upfront cost of $79 to assess a plumbing issue seems reasonable. To then have a minimal price that starts at $494 for something as simple as a 45 minute repair seems very unfair. It is similar to a bait and switch--reasonable to ridiculous. I was very specific in my needs--which was to connect two 1" water pipes 4 3/8" apart. I even forwarded a pic before anyone from TR Miller came out to the residence. The explanation from the manager was inadequate and false. Manager stated pricing was based on 50% going to the technician, 40% for overhead, and 10% profit. While I have already gone through the manager's exaggerated pay rate for the technician repair at roughly $250 per hour, Glassdoor site shows a technician hourly salary ranging from $20-$33 per hour. Even at an hourly rate of $50 per hour, a 40 hour per week technician would be at an annual salary of $100k per year-- which is probably closer to reality for pricing. With inflated non-factual pricing to start for labor and then factoring your overhead and profit off of an inflated labor rate, you literally are overinflating pricing by a large margin. Very unfair for a homeowner enticed to use your service which supposedly starts at $79. Will continue to be dissatisfied with my experience with TR Miller. You are a predatory company taking advantage of people. Based on my math, you would have still had great and more fair margins for a 45 minute job charging $250 for the job."

Mel S on November 2024

TR Miller Heating, Cooling, Plumbing and Electrical has provided the Plainfield, IL area with excellent HVAC, plumbing and electrical services since 2008. Offering straightforward pricing, emergency services and the latest technology, they will help with all of your home service needs. Call today to schedule your appointment!

"TR Miller Heating, Cooling & Plumbing I think an obvious first step for the company is to be more upfront with pricing. By offering an upfront cost of $79 to assess a plumbing issue seems reasonable. To then have a minimal price that starts at $494 for something as simple as a 45 minute repair seems very unfair. It is similar to a bait and switch--reasonable to ridiculous. I was very specific in my needs--which was to connect two 1" water pipes 4 3/8" apart. I even forwarded a pic before anyone from TR Miller came out to the residence. The explanation from the manager was inadequate and false. Manager stated pricing was based on 50% going to the technician, 40% for overhead, and 10% profit. While I have already gone through the manager's exaggerated pay rate for the technician repair at roughly $250 per hour, Glassdoor site shows a technician hourly salary ranging from $20-$33 per hour. Even at an hourly rate of $50 per hour, a 40 hour per week technician would be at an annual salary of $100k per year-- which is probably closer to reality for pricing. With inflated non-factual pricing to start for labor and then factoring your overhead and profit off of an inflated labor rate, you literally are overinflating pricing by a large margin. Very unfair for a homeowner enticed to use your service which supposedly starts at $79. Will continue to be dissatisfied with my experience with TR Miller. You are a predatory company taking advantage of people. Based on my math, you would have still had great and more fair margins for a 45 minute job charging $250 for the job."

Mel S on November 2024


"They came out when they said they would, and did a wonderful job."

MIKE N on July 2023

80% of our jobs are referrals from previous customers. We have never had a BBB complaint in 52 years. Our equipment has a 10 year parts and labor warranty.

"They came out when they said they would, and did a wonderful job."

MIKE N on July 2023


Avatar for Daniel Nagel

Daniel Nagel

2910 South Justen Road
4.90(
37
)
Approved Pro

Daniel Nagel

2910 South Justen Road
4.90(
37
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Get the B.E.S.T for your home (Building Energy Services and Testing) from ZENERGY LLC. We strive to help our clients find the 'ZEN' in their homes, that point where there improved comfort and the utility bills aren't emptying your pocket. We take a whole house approach to identify and resolve any issues within the home's attic, basement, or crawl space to improve the homes performance against the weather. Our services focus on targeted air sealing, increasing the insulation, installing proper ventilation, or making adjustments to the home to improve the comfort. ZENERGY is your one stop for full home energy auditing or home performance improvements. Let us help solve your homes energy consumption and comfort issues with our 3D approach. We are able to Discover the root cause of the issue. Design a solution for repair and Deliver the corrective action to improve the situation. WWW.greenzenergy.com 773-710-1090

"We reached out to Dan with the issue of freezing pipes and cold rooms in our old house. Dan inspected the house and proposed a plan to remedy these issues. Aside from the more traditional air sealing and insulation solutions, Dan also recommended insulating the area of our house above our soffit, which was difficult to access but that appeared to be a major insulation issue. I should add the other firms we requested quotes for did not identify this area in their proposal. I firmly believe the proposals from the other firms would not have fixed our issues. Dan worked for ~2 weeks on air sealing our attic and house, adding insulation to our attic, removing our soffit and adding insulation and reinstalling soffit. Work was done well and within budget and at a fair price. Dan is very easy to work with and takes pride in his work. We are very happy to report our pipes have not frozen and the cold rooms are no longer cold - would highly recommend Dan to others - he went above and beyond."

Daniel C on January 2023

Get the B.E.S.T for your home (Building Energy Services and Testing) from ZENERGY LLC. We strive to help our clients find the 'ZEN' in their homes, that point where there improved comfort and the utility bills aren't emptying your pocket. We take a whole house approach to identify and resolve any issues within the home's attic, basement, or crawl space to improve the homes performance against the weather. Our services focus on targeted air sealing, increasing the insulation, installing proper ventilation, or making adjustments to the home to improve the comfort. ZENERGY is your one stop for full home energy auditing or home performance improvements. Let us help solve your homes energy consumption and comfort issues with our 3D approach. We are able to Discover the root cause of the issue. Design a solution for repair and Deliver the corrective action to improve the situation. WWW.greenzenergy.com 773-710-1090

"We reached out to Dan with the issue of freezing pipes and cold rooms in our old house. Dan inspected the house and proposed a plan to remedy these issues. Aside from the more traditional air sealing and insulation solutions, Dan also recommended insulating the area of our house above our soffit, which was difficult to access but that appeared to be a major insulation issue. I should add the other firms we requested quotes for did not identify this area in their proposal. I firmly believe the proposals from the other firms would not have fixed our issues. Dan worked for ~2 weeks on air sealing our attic and house, adding insulation to our attic, removing our soffit and adding insulation and reinstalling soffit. Work was done well and within budget and at a fair price. Dan is very easy to work with and takes pride in his work. We are very happy to report our pipes have not frozen and the cold rooms are no longer cold - would highly recommend Dan to others - he went above and beyond."

Daniel C on January 2023


Avatar for Blue & Green #1 Services - Landscaping

Blue & Green #1 Services - Landscaping

Serving
5.00(
3
)

Blue & Green #1 Services - Landscaping

Serving
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Blue & Green #1 Services - Landscaping and HVAC is your premier choice for all your landscaping and HVAC needs in Joliet, IL, and Will and Kendall Counties. Established in 2022, our expert team specializes in top-notch services such as mowing, mulching, patio installation, stump grinding, and hardscaping, as well as professional HVAC services and installations. We offer free estimates and a wide range of other services to keep your property looking beautiful and your environment comfortable. Trust Blue & Green #1 Services - Landscaping and HVAC for exceptional quality and service that exceeds expectations.

"Blue and Green have worked on our house more than once. They have great customer service and come up with ideas and options. They are responsible and start working as soon as they can. Prices are reasonable and have monthly plans. I recommend them."

Sandra M on June 2024

Blue & Green #1 Services - Landscaping and HVAC is your premier choice for all your landscaping and HVAC needs in Joliet, IL, and Will and Kendall Counties. Established in 2022, our expert team specializes in top-notch services such as mowing, mulching, patio installation, stump grinding, and hardscaping, as well as professional HVAC services and installations. We offer free estimates and a wide range of other services to keep your property looking beautiful and your environment comfortable. Trust Blue & Green #1 Services - Landscaping and HVAC for exceptional quality and service that exceeds expectations.

"Blue and Green have worked on our house more than once. They have great customer service and come up with ideas and options. They are responsible and start working as soon as they can. Prices are reasonable and have monthly plans. I recommend them."

Sandra M on June 2024


Avatar for Inka Solar

Inka Solar

1265 Borough Court
No reviews yet

Inka Solar

1265 Borough Court
No reviews yet
Free onsite estimate

Would you like to contribute to improving the environment and save money at the same time? At Powur we offer you friendly and powerful solutions to reduce your carbon footprint and help you create a more sustainable future. We are experts in finding opportunities for improvement to reduce your costs or increase your productivity, through innovative, ecological and economic proposals and projects. With our solar panel systems, you can generate your own clean and renewable energy, and enjoy the benefits of cheaper, safer and more independent energy. In addition, by choosing Powur, you join a community of more than 100,000 satisfied customers, who receive a quality service, personalized attention, and a participation in the company's actions. What are you waiting for to join the solar revolution? Contact us today and request a free and no-obligation quote. Powur: the energy of the future, at your fingertips.

Would you like to contribute to improving the environment and save money at the same time? At Powur we offer you friendly and powerful solutions to reduce your carbon footprint and help you create a more sustainable future. We are experts in finding opportunities for improvement to reduce your costs or increase your productivity, through innovative, ecological and economic proposals and projects. With our solar panel systems, you can generate your own clean and renewable energy, and enjoy the benefits of cheaper, safer and more independent energy. In addition, by choosing Powur, you join a community of more than 100,000 satisfied customers, who receive a quality service, personalized attention, and a participation in the company's actions. What are you waiting for to join the solar revolution? Contact us today and request a free and no-obligation quote. Powur: the energy of the future, at your fingertips.


Anura Energy

123 Ambassador Drive
No reviews yet

Anura Energy

123 Ambassador Drive
No reviews yet
9 years of experience

Full home Energy Efficiency and Weatherization Services. Insulation, Air Sealing, Energy Audits, HVAC tune-ups, and upgrades. Insulation Removal, Mold Remediation. Energy Star Partner, Indoor airPLUS Verification Organization, Residential Energy Rating Company,

Full home Energy Efficiency and Weatherization Services. Insulation, Air Sealing, Energy Audits, HVAC tune-ups, and upgrades. Insulation Removal, Mold Remediation. Energy Star Partner, Indoor airPLUS Verification Organization, Residential Energy Rating Company,


Avatar for RSS Solar

RSS Solar

Aurora Ave.
No reviews yet

RSS Solar

Aurora Ave.
No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.


Avatar for Flow-Rite Heating & Cooling

Flow-Rite Heating & Cooling

537 W Montrose Ave
5.00(
7
)

Flow-Rite Heating & Cooling

537 W Montrose Ave
5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Up and coming Residential & Commercial HVAC Company. We Service all makes and models. Furnaces, Boilers, Water Heaters, A/C, Rooftop units and more. I've been in the Heating and Cooling business since 2012. I opened my own business in 2020 and named it Flow-Rite Heating & Cooling.

"Very satisfied. Great customer service."

Jeremiah F on January 2022

Up and coming Residential & Commercial HVAC Company. We Service all makes and models. Furnaces, Boilers, Water Heaters, A/C, Rooftop units and more. I've been in the Heating and Cooling business since 2012. I opened my own business in 2020 and named it Flow-Rite Heating & Cooling.

"Very satisfied. Great customer service."

Jeremiah F on January 2022


Avatar for Summers Plumbing Heating & Cooling- Greenfield

Summers Plumbing Heating & Cooling- Greenfield

121 S. Harrison St
5.00(
9
)

Summers Plumbing Heating & Cooling- Greenfield

121 S. Harrison St
5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

SERVING RESIDENTS & BUSINESSES OF GREENFIELD, INDIANA Since 1969, Summers Plumbing Heating & Cooling has been providing the highest quality of service at the best price. Our Greenfield, Indiana technicians are dedicated to providing customer service that makes you feel at ease, so if you are in need of plumbing or HVAC services in Greenfield, Summers Plumbing Heating & Cooling is the team to call! Our Greenfield technicians are some of the best in the business, and our customers have taken notice. We are proud to be able to say that we consistently receive positive reviews from our customers! Not only that, but we offer some of the best deals. In fact, we guarantee the best price for quality service!

"Was very happy with there service. They always do a good job."

Sheryl H on March 2024

SERVING RESIDENTS & BUSINESSES OF GREENFIELD, INDIANA Since 1969, Summers Plumbing Heating & Cooling has been providing the highest quality of service at the best price. Our Greenfield, Indiana technicians are dedicated to providing customer service that makes you feel at ease, so if you are in need of plumbing or HVAC services in Greenfield, Summers Plumbing Heating & Cooling is the team to call! Our Greenfield technicians are some of the best in the business, and our customers have taken notice. We are proud to be able to say that we consistently receive positive reviews from our customers! Not only that, but we offer some of the best deals. In fact, we guarantee the best price for quality service!

"Was very happy with there service. They always do a good job."

Sheryl H on March 2024

...
Showing 1-10 of 136
Energy Efficiency Auditing questions, answered by experts

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

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.

Expert installation optimizes insulation properties, cutting energy costs and enhancing home comfort year-round.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

Costs depend on the property size, audit complexity, and whether additional testing (e.g., blower door) is included.

The Aurora, 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.