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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon10
    Verified energy efficiency auditing services reviews

Verified Reviews for Energy Efficiency Auditing pros in Chicago, IL

*The Angi rating for Energy Efficiency Auditing companies in Chicago, 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 Chicago, 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 October 08, 2025

Find Energy efficiency auditors in Chicago

Vesta Security Svc

7500 W Grand Ave
4.50(
4
)

Vesta Security Svc

7500 W Grand Ave
4.50(
4
)
Customers say: Quick response
15 years of experience

Home & commercial alarm services. Home & commercial HD video camera systems. Additional phone - (847) 397-3150. Additional email - [email protected].

"It was honestly not as good experience. The communication is also not good."

Nathan B on October 2021

Home & commercial alarm services. Home & commercial HD video camera systems. Additional phone - (847) 397-3150. Additional email - [email protected].

"It was honestly not as good experience. The communication is also not good."

Nathan B on October 2021

DRF Water Heating Solutions

10242 South Bode Street
4.63(
325
)

DRF Water Heating Solutions

10242 South Bode Street
4.63(
325
)
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Since 2004, DRF Water Heating Solutions has provided reliable and expert service for water heater and plumbing needs. We are Chicagoland's leading installer of all types of water heaters, and pride ourselves on offering same-day service and a hassle-free experience. Our team is fully licensed, ensuring you receive professional and dependable service every time. For a free no-obligation quote, call us and a trained Water Solutions Advisor will assist you. Or visit our website and complete a short survey to obtain an instant quote online. For a hassle-free experience, 1-year price guarantee and the best warranty, select DRF for your water heater and plumbing needs. IDPH plumbing license # 055-028138.

"He was very professional and did an amazing job. He answered all my questions and was very knowledgeable in his answers."

Alex B on September 2025

Since 2004, DRF Water Heating Solutions has provided reliable and expert service for water heater and plumbing needs. We are Chicagoland's leading installer of all types of water heaters, and pride ourselves on offering same-day service and a hassle-free experience. Our team is fully licensed, ensuring you receive professional and dependable service every time. For a free no-obligation quote, call us and a trained Water Solutions Advisor will assist you. Or visit our website and complete a short survey to obtain an instant quote online. For a hassle-free experience, 1-year price guarantee and the best warranty, select DRF for your water heater and plumbing needs. IDPH plumbing license # 055-028138.

"He was very professional and did an amazing job. He answered all my questions and was very knowledgeable in his answers."

Alex B on September 2025

UNIQUE INDOOR COMFORT

346 HUEHL RD
5.00(
9
)

UNIQUE INDOOR COMFORT

346 HUEHL RD
5.00(
9
)
Customers say: Quick response
40 years of experience

Unique Indoor Comfort Inc is a nationally recognized, family owned and operated heating and air conditioning company. Unique Indoor Comfort has been providing the highest quality services and installations to homeowners and businesses throughout North and South suburbs and the city of Chicago. Unique Indoor Comfort services and installs a wide range of products including furnaces, boilers, radiant heat, snow melt systems, ductless systems, air conditioning systems, humidifiers, air cleaners, generators, and our specialty Unico and Space-Pak high velocity air conditioning systems for hot water or steam vintage homes or condos. We offer Emergency service as well as full maintenance and service plans to suit your needs.

Unique Indoor Comfort Inc is a nationally recognized, family owned and operated heating and air conditioning company. Unique Indoor Comfort has been providing the highest quality services and installations to homeowners and businesses throughout North and South suburbs and the city of Chicago. Unique Indoor Comfort services and installs a wide range of products including furnaces, boilers, radiant heat, snow melt systems, ductless systems, air conditioning systems, humidifiers, air cleaners, generators, and our specialty Unico and Space-Pak high velocity air conditioning systems for hot water or steam vintage homes or condos. We offer Emergency service as well as full maintenance and service plans to suit your needs.

Greenfii LLC

2319 North Orchard
5.00(
5
)

Greenfii LLC

2319 North Orchard
5.00(
5
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a complete home automation design and installation company. We install custom home automation systems for smart home consumers as well as Nest Products for people looking to get their feet wet with smart home technology. We are a huge supporter of smart homes and the internet of things. If you have a question about a particular smart home automation product feel free to email us for some advice or schedule an installation. For a quick question and response email us at [email protected] or check out our FAQ on our website at www.greenfii.com

We are a complete home automation design and installation company. We install custom home automation systems for smart home consumers as well as Nest Products for people looking to get their feet wet with smart home technology. We are a huge supporter of smart homes and the internet of things. If you have a question about a particular smart home automation product feel free to email us for some advice or schedule an installation. For a quick question and response email us at [email protected] or check out our FAQ on our website at www.greenfii.com

Specialty services corp

415 W Belden Ave
4.40(
5
)

Specialty services corp

415 W Belden Ave
4.40(
5
)
Customers say: Quality work
23 years of experience

Electrical contractor

"Joe was fantastic and we would absolutely hire him again for any electrical needs we have. He was quick to come out and assess the damage after we had an old/poorly installed ceiling fan cause a small electrical fire. We thought we would be in for a huge, expensive project but Joe was very honest and did his best to keep our cost manageable while making sure he made the home safe. He was great at communicating every step he took and that we were fully informed on the plan for repairs. I highly recommend if you want someone who is going to explain everything in detail and be an honest, hard worker. Thanks Joe!"

Bridget C on March 2022

Electrical contractor

"Joe was fantastic and we would absolutely hire him again for any electrical needs we have. He was quick to come out and assess the damage after we had an old/poorly installed ceiling fan cause a small electrical fire. We thought we would be in for a huge, expensive project but Joe was very honest and did his best to keep our cost manageable while making sure he made the home safe. He was great at communicating every step he took and that we were fully informed on the plan for repairs. I highly recommend if you want someone who is going to explain everything in detail and be an honest, hard worker. Thanks Joe!"

Bridget C on March 2022

ECO Windows & Doors

2635 Maple Ave.
5.00(
3
)

ECO Windows & Doors

2635 Maple Ave.
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Eco-friendly, energy-efficient window and door products directly from the factory! Our buying power allows us to pass enormous discounts on homeowners and beat any competitors pricing all year around. Free in-home estimates, professional service, highest quality products, and free financing available for every home budget are among those factors that distinguish our company from other businesses. Working directly with most trusted brands in the window and door industry and running efficient operations permits us to provide the best value to our customers.

Eco-friendly, energy-efficient window and door products directly from the factory! Our buying power allows us to pass enormous discounts on homeowners and beat any competitors pricing all year around. Free in-home estimates, professional service, highest quality products, and free financing available for every home budget are among those factors that distinguish our company from other businesses. Working directly with most trusted brands in the window and door industry and running efficient operations permits us to provide the best value to our customers.

Earth Wind & Solar Energy LLC

2350 W Grand Ave
5.00(
2
)

Earth Wind & Solar Energy LLC

2350 W Grand Ave
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Earth Wind And Solar Energy design and installs solar panels, solar thermals, wind turbines, geothermal and energy efficient lighting throughout Chicago and northern Illinois. We also are RESNET/HERS, BPI, and LEED Green Raters/Energy auditors for your home or business.

Earth Wind And Solar Energy design and installs solar panels, solar thermals, wind turbines, geothermal and energy efficient lighting throughout Chicago and northern Illinois. We also are RESNET/HERS, BPI, and LEED Green Raters/Energy auditors for your home or business.

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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.

Yes, pros suggest units with high EER ratings for energy savings.

The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency. 

A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.

Audits include inspecting insulation, HVAC systems, windows, and appliances to identify energy inefficiencies.

The best way to save money on home heating oil is to get large deliveries in the summer months when the prices are lowest. However, this method will only work if you have a separate storage tank or an unusually large primary tank. You can sometimes save money by opting into a delivery contract, as some companies offer set prices that they believe will sit at the average cost over the contract term. If the price of oil rises, you could enjoy some savings, but keep in mind that you might also pay a bit more if the price decreases.

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

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