We aim to provide only the highest quality service from the first call, the estimate and evaluation, to completing the work and following up- we hold 30 years of experience helping homeowners in the Greater North Shore area just like you!

As a sister company to Amerigreen, LLC., Dr. Energy Saver (N.E. Illinois) is fully trained and certified to provide all the services to upgrade your home to meet its highest potential for efficiency and comfort.

Our expertise spans across repairs, upgrades, and installations throughout your entire home. We call ourselves home science experts, and we do all we can to train our employees and learn from one another the best ways to better serve you!

Contact Details

  Website
  City Lake Bluff , IL
  Zip Code 60044
  Address 46 Sherwood Terrace
  Phone Number (847) 973-5833

Products & Services

Central Air Conditioning Repair

Central Air Conditioning Repair

Tired of relying upon ugly window fans or unwieldy window air conditioners in an effort stay cool? Consider a central air conditioning (AC) system. It can efficiently cool every room of your house without blocking windows, being noisy and unsightly, or making it easier for burglars to find an easy way into your home.

If you house already has ductwork for circulating air from to and from your furnace, the central air conditioner installation is greatly simplified because the system can "piggyback" on an existing forced hot-air heating distribution system. The blower and ducts used to move warm air in winter are also used to move cool air in summer. In addition, the air conditioning system typically runs off the same thermostat as the furnace. Also, if your home's central air conditioning system calls for a repair, we are just the ones to do it. We have all the solutions to keep your home cool and comfortable throughout the hot summer months.

Customer Testimonials

I would recommend Dr Energy Saver to help all my friends and family with their home insulation and energy improvements. Thank you Dr Energy Saver!


I had them them come and air seal and insulate my attic.
The first thing I noticed right away was the furnace was not running as often as it was, the second was the noise was reduced. I live near the air port and would hear the planes and traffic, but now the sound has been deaden. Thank you for making my home much more comfortable.


They came out and gave us a free inspection and estimate. When we decided to get the work done they worked they came out immediately and started work a week after that. They worked with financing and the job was done quickly and efficiently. All of the workers were very nice and cleaned up when they were done. The office staff also kept in contact to keep up informed on the process. Highly recommend, worth the cost!


I have had the pleasure of meeting and doing business with John at this company now for a while. He is fantastic, he knows his stuff and is an upfront and honest fellow. When it comes to insulation and saving money this is my go-to guy and my go-to company. We have done business to business work together now for a while.
They never have tried to upsell me or my clients on anything that isn't needed and have always been stand up folks. I would suggest this company and John especially to anyone who is looking to save money on their energy bills or who is renovating a house. They are as the five stars say as good as it gets. As soon as I find another house to rehab... these are the guys I am going to


Absolutely a great job. We've noticed a significant change in the temperatures inside the bedrooms. We also unexpectadly addressed an odor issue that was flowing down from the attic into the bedrooms on hot days. We're extremely happy with the outcome!!


Frank Nennig was very helpful in assessing our overall energy loss issues, and suggested solutions that had not occurred to us. The installation crew was very tidy; we had minimal cleanup after they left. Overall, most satisfactory experience.

Social Activity

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Check out these great before and after photos of a Crawl Space Encapsulation we just did for a home in Highland Park
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