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*The Angi rating for Energy Efficiency Auditing companies in Phoenix, 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 Phoenix, 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 September 27, 2026

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Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,531
)
Home Energy Audit

Serving Phoenix, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"The gentleman that came to do the electric for my sump pump in the basement was a gentleman did great cleanup great work courteous kind very informative. This was the first step prior to having the drains put in. This was the Electrician and he was excellent."
Thermal imaging
Blower door test
Old insulation removal
New blown insulation
Perma-Seal Attic Insulation

+48

Response time1 day
Response rate100%
53 neighbors recently requested a quote
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Avatar for Millennium Solar Electric Inc
Millennium Solar Electric Inc
4.6(
203
)
Energy Audit - For BusinessHome Energy Audit

Serving Phoenix, IL and surrounding areas

In business since 1999

Emergency services offered

Credit card accepted

"All work was done well and I am completely satisfied. Chris was personable and easy to work with. I would definitely use Millennium Solar Electric again."
New ductwork and sheet metal
Granite countertops and new floors
New cabinet, countertops and floors
panel upgrade
400 amp meter service upgrade

+25

Recommended by90%of homeowners
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Avatar for Armando’s heating and cooling
Armando’s heating and cooling
4.7(
11
)
Energy Audit - For BusinessHome Energy Audit

Serving Phoenix, IL and surrounding areas

In business since 2012

Emergency services offered

Credit card accepted

"Very professional and fast service. Armando provided different choices and suggestions. My heater has been working great. Would highly recommend."
Heating & A/C Project
Heating & A/C Project
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+5

Recommended by90%of homeowners
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Avatar for Complete Heating & Air Conditioning
Complete Heating & Air Conditioning
3.9(
23
)
Energy Audit - For BusinessHome Energy Audit

Serving Phoenix, IL and surrounding areas

In business since 1996

Emergency services offered

Credit card accepted

"I had a fire back in October 2012 and All State paid for everything when I had my new home built. While the fireman were still on the property they were here. They covered everything! They were efficint, caring and promt. They were also very responsive when I called them and had Elko Construction come out right away. They had 2 cleaners the American Cleaning Company come out as well."
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+14

Recommended by81%of homeowners
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Avatar for Beanz heating&cooling
Beanz heating&cooling
5.0(
4
)
Energy Audit - For BusinessHome Energy Audit

Serving Phoenix, IL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

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+9

Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

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.

While many states require all new construction to undergo blower door tests, it’s not a requirement for existing homes. But in both cases, a blower test helps confirm that the contractor has sealed the exterior, that the type of ductwork installed is functioning properly, and that your home is as efficient as possible.

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

A home energy audit costs about $420 on average, with prices ranging from $100 to $2,250 or more. The final cost depends on factors like your home's size, location, the thoroughness of the audit, and the specific tests performed. A basic Level 1 walk-through inspection typically costs between $150 and $200, while a comprehensive Level 3 audit with detailed testing and a report costs around $900. Homeowners may be able to use the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit to cover up to $150 of the audit cost.

Costs for common individual tests include:

  • Blower door test: $350

  • Duct testing: $100

  • HERS test: $375

  • HERS certification: $200

  • Infrared imaging: $200

A blower door test shouldn’t take more than an hour, and most can be completed in less than 30 minutes. Expect the test to take longer once you start searching for leaks with thermal imaging or want to include sealing such leaks in the time estimate. The test doesn’t take much time and can’t be rushed, but it will take longer in large homes or those with many air leaks.

The Phoenix, 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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