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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon14
    Verified energy efficiency auditing services reviews

Top-Rated Energy efficiency auditors in Mokena - Updated Nov 2026

Avatar for ARC Insulation, Inc.
ARC Insulation, Inc.
4.7(
49
)
Home Energy Audit

Serving Mokena, IL and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"Jim Clay gave the most comprehensive quote for our insulation project. He suggested a couple of options which thought would help regulate the temperature in our home. He explained everything that ARC insulators would be doing to our home. He told us about rebates that would be credited to our bill because of a blower door pressure test and gas appliance combustion test. He presented a well-written quote. The technician for the tests and the technicians who did the insulation work showed up on time. They explained everything they were doing thoroughly. When the work was done, we did a thorough walk-thru before the techs left. We are satisfied with the work performed. We are satisfied with the money we paid. We would recommend ARC Insulation to anyone seeking recommendations."
My Work.
Our Work
Our Work
Our Work
Our Work

+8

Response time2 days
38 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Regional Plumbing Heating & Air
Regional Plumbing Heating & Air
5.0(
15
)
Energy Audit - For BusinessHome Energy Audit

Serving Mokena, IL and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"I am more than impressed with Evan at Regional. He has been to my house on several occasions (because I request him every time) and has never disappointed me. He is dedicated to his job and puts his all into his work, aside from him being an amazing person overall. I will always contact Regional for all of my plumbing needs, I have gotten the best work and customer service from this company!"
17 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Perma-Seal Basement Systems
Perma-Seal Basement Systems
4.4(
1,540
)
Home Energy Audit

Serving Mokena, 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%
47 neighbors recently requested a quote
Avatar for Climate Master Mechanical
Climate Master Mechanical
4.9(
281
)
Energy Audit - For BusinessHome Energy Audit

Serving Mokena, IL and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"CMM installed a garage heater for me. Chuck came out and did a free estimate which I received the next day. The price was good ($800 cheaper than other estimate) and included gas and electrical hook up and venting. Jeff came and installed unit. Everything went smooth and he left everything neat and clean. Very happy and would recommend to others."
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Installation of trash and linen chutes at Palos Community Hospital!
Installation of radiant floor heat! We install snow melt systems also.

+9

Recommended by96%of homeowners
Avatar for Millennium Solar Electric Inc
Millennium Solar Electric Inc
4.6(
203
)
Energy Audit - For BusinessHome Energy Audit

Serving Mokena, IL and surrounding areas

In business since 1999

Emergency services offered

Credit card accepted

"I found Millennium Solar Electric through an Angie's List offer to have an electrical panel replaced with an upgraded panel with a whole home surge protector where you have to pay for the service in full before scheduling the services. Paying a service provider in full before they do any work is quite the leap of faith and goes against rules of dealing with service providers but it is the only way to take advantage of the offers. In an attempt to protect myself I contacted Millennium prior to making payment. The company did not respond to contact attempts through Angie's List email and chat service. I attempted to contact them several times that way throughout October 2017. I finally got in touch with them on November 1st. They apologized for not responding to my attempts to contact them through Angie's List. November 17th was earliest he could schedule my appointment. The work seemed to go off without much of a hitch. When they finished installing the panel, the workers left without much explanation of what what done. I noticed after they left that one of the breakers was not turned on. It was the breaker connected to the whole home surge protector. I wasn't sure if it was supposed to be on or off so I called the company and had to leave a message. A few days later I finally received a response telling me that the breaker should have indeed been turned on. OK, I thought, not a big deal. A week later I noticed that my outdoor security light was no longer working. It was working prior to the installation of the panel. So again I had to call the company. I called on December 1st, left a message. He called me back, stated that he knew what probably went wrong with the wiring when he reconnected the panel but said that he would me back to schedule a time to come correct the problem. I didn't hear back that day so I called on December 4th, 5th, and 6th. On the 6th I again explained the issue as he didn't seem to remember and we made an appointment for December 11th to correct the problem. So I took off work and waited for him to come correct the issue. Guess what....I didn't hear from him on December 11th. I called and find out what happened and the calls went directly to voice mail. I waited an hour and called again and left a message. That is where our story ends for now. I must not contemplate having another company correct the issue which would mean I would have to sue this company for whatever the amount I am charged to have the light fixed. Between December 11th and December 14th, the owner, Christopher Williams and I had a couple of exchanges via text. I think in the end, Mr. Williams understood my frustration and on December 16th he came out as promised (actually he was early) and corrected the issue with the outdoor security light. Now that my issues are resolved I have a much more favorable view of the company."
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
Avatar for Integrity Heating & Cooling Inc
Integrity Heating & Cooling Inc
4.3(
213
)
Energy Audit - For BusinessHome Energy Audit

Serving Mokena, IL and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"I am very please with the work by Integrity Heating and Cooling. They really have the interest of their members at heart and are willing to go that extra mile. The tech came out and did the cleaning on our furnace with no issue; he was courteous, respectful and knowledgeable. The tech happened to have the owner on the phone, and the owner took the time to thoroughly educate me on the importance of a whole house humidifier, which was installed same day and at an amazing price through their membership. I feel safe putting the heating and cooling needs of my family in their hands. They really do have Integrity. 10 /10 will be using them for years to come."
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+3

Recommended by86%of homeowners
Avatar for United Heating And Air Conditioning
United Heating And Air Conditioning
5.0(
7
)
Energy Audit - For BusinessHome Energy Audit

Serving Mokena, IL and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Thank you United Heating and Air Conditioning. The team was very professional and knowledgeable, they explained everything clearly and answered all my questions. They were punctual and efficient, they completed the job quickly and effectively. I recommend them to everyone. I will continue to use their services when in need. They also do our hvac maintenance and has helped so much!"
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+7

Recommended by83%of homeowners
Avatar for Midwest Spray Coatings A Perfect Crawlspace
Midwest Spray Coatings A Perfect Crawlspace
4.7(
193
)
Energy Audit - For BusinessHome Energy Audit

Serving Mokena, IL and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"The inspector arrived pretty much on time. He spent about 30 minutes or so in the crawlspace looking around.
Upon the completion of his inspection, he made recommendations and showed me pictures of what he found. He provided a  weather station that indicates internal and external temperatures. I did not know I had moisture in my home particularly in the crawlspace.
In addition, his office sent me a written list of the recommendations.  I would like to use their service to have my crawlspace
sealed in the very near future.


"
Exposed stone foundation
Foundation repair and insulation
Polyurea Coating
Ineffective fiberglass
Repairs to Foundation - Same Day

+16

Recommended by98%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Energy-efficient windows are judged on their performance according to a few different factors, including heat transfer, air leakage, light transference, and condensation resistance. If you're unsure whether a window is energy-efficient, look for an ENERGY STAR® label from the U.S. Environmental Protection Agency (EPA). If various products, including windows, meet energy-efficiency standards set by the federal government, the EPA issues this label to help consumers identify energy-efficient products.

You can save money on heating oil through a combination of improving home efficiency and smart purchasing strategies.

Home Efficiency and Usage:

  • Improve Insulation: Ensure your home, especially the basement and attic, is well-insulated and sealed against drafts to prevent heat leakage.

  • Manage Your Thermostat: Use a properly calibrated and programmable thermostat. Lower the temperature by a few degrees, particularly when you are away from home or asleep.

Purchasing Strategies:

  • Buy in the Off-Season: Order heating oil during the summer months when prices are generally at their lowest. This strategy is most effective if you have a large primary tank or a separate storage tank to accommodate bulk deliveries.

  • Consider a Delivery Contract: Some companies offer contracts with a set price for the term. This can lead to savings if market prices for oil increase, but you might pay more if prices drop.

You'll likely need more than great home staging to sell your home. Now is a great time to get to work on the curb appeal of your home . Hire local exterior painters and landscapers to coat the exterior of your home and bring it new life with some sprucing up.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

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.

The Mokena, 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.