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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

USA Alarm Service, Inc

510 S Clearwater Loop
No reviews yet

USA Alarm Service, Inc

510 S Clearwater Loop
No reviews yet
29 years of experience

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.

Windfree Wind & Solar Energy Design Co

1538 N. Western Ave
No reviews yet

Windfree Wind & Solar Energy Design Co

1538 N. Western Ave
No reviews yet
16 years of experience

Windfree is a full-service design engineering solar operation- we build dreams for everyone’s clean renewable future. We are committed to a quality installation and to ensuring total satisfaction with our products and service. We are behind you every step of the way, assisting in all stages of the installation, and we provide a contractor warranty on all projects.

Windfree is a full-service design engineering solar operation- we build dreams for everyone’s clean renewable future. We are committed to a quality installation and to ensuring total satisfaction with our products and service. We are behind you every step of the way, assisting in all stages of the installation, and we provide a contractor warranty on all projects.

Whole Property Services

2203 Keating Drive
5.00(
2
)

Whole Property Services

2203 Keating Drive
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Whole Property Services provides Property Inspections, Energy Audits, Radon Detection and Mold Testing for Residential and Commercial properties throughout the Chicagoland area.

Whole Property Services provides Property Inspections, Energy Audits, Radon Detection and Mold Testing for Residential and Commercial properties throughout the Chicagoland area.

Chicago Building Inspections, Inc.

456 North Oakley Blvd
4.25(
4
)

Chicago Building Inspections, Inc.

456 North Oakley Blvd
4.25(
4
)
Customers say: Super punctual
17 years of experience

We provide traditional pre-purchase home and building inspections with an emphasis on energy and moisture related issues or concerns. From the high rise studio condo to large multi-family or commercial buildings, we have significant experience to better help you understand the ins and outs of your future purchase or existing property.

"Very thorough inspection and detailed report."

MOLLY M on February 2018

We provide traditional pre-purchase home and building inspections with an emphasis on energy and moisture related issues or concerns. From the high rise studio condo to large multi-family or commercial buildings, we have significant experience to better help you understand the ins and outs of your future purchase or existing property.

"Very thorough inspection and detailed report."

MOLLY M on February 2018

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 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!

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Energy Efficiency Auditing questions, answered by experts

You can determine what size generator you need by listing the various appliances it will power during an outage. Write down the start-up watt usage, and then add them all together. 

A 7,500-watt generator will run your refrigerator, freezer, well pump, and lighting circuits without a problem. However, you’ll need an extra 3,000 to 4,500 watts to run your water heater and another 5,000 to 25,000 watts to run your electric furnace. In these instances, a whole-home generator is your best bet for running your critical equipment.

If you want a new boiler that’s going to help lower your fuel bills, you should buy one that has a high energy-efficiency rating. For example, a boiler that is rated “A” uses at least 90% of the energy created by the boiler. And in order to enjoy the best performance, it’s important to have it installed properly by a highly-rated tech.

Yes, skylights can affect a home’s energy efficiency, either positively or negatively. Properly installed, energy-efficient skylights with Low-E coatings, double glazing, and UV-blocking glass can help regulate indoor temperatures and reduce heating and cooling costs. However, poorly insulated or older skylights can contribute to heat loss in winter and excess heat gain in summer, lowering overall energy efficiency.

Window AC units use a fair amount of electricity during use, but the usage pales in comparison to central units. As a matter of fact, window units use around a third of the amount of energy as a central AC. On average, a window air conditioner costs between $15 and $40 per month to run, though this depends on a number of external factors.

A good SEER rating is between 15 and 20. However, if you want the best possible efficiency, look for HVAC units with a SEER rating higher than 21. Keep in mind that the SEER rating doesn’t mean that the unit will reach that efficiency all the time, but it does have the capacity to operate at that high of an efficiency level.

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

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