About Us

Get to know us a little better.

Northeast Illinois Heating & Air Conditioning Office


Years of Combined Management Experience

Our History

Thank you for considering Northeast Illinois Heating & Air Conditioning Corp. (NIHAC) as a potential service provider for your HVAC-R needs.  We are a full-service Heating, Ventilation, Air Conditioning and Refrigeration service,  installation, and consulting company.

Family owned and managed, NIHAC was established in 1990 and has been providing service to the Greater Chicagoland area, Northwest Indiana, and Wisconsin.

Since its inception, NIHAC has held a truly diverse customer base from residential to retail, food service to health care. Our current client list includes, among many others, residential customers, medical centers, places of worship, restaurant chains, coffee house chains, and shopping centers. Having virtually no advertising program in place, our clients actively seek us out through positive word-of-mouth referrals.

The senior management at NIHAC prides itself in having over 90 years of combined experience in the HVAC-R field. It is this experience that gains us the trust of our clients.

Our Partners

Our Services

Residential and commercial HVAC-R service, installation, and repair.

Core Services

NIHAC truly is a full-service Heating, Ventilation, Air Conditioning and Refrigeration service, repair, and installation company. From routine home service calls to complex commercial Roof Top Unit installations, our trained and EPA-certified technicians have you covered. To the right are some, but not all of the areas in which NIHAC regularly performs service in.

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Our primary focus is on service and we operate on the highest level of customer approval and satisifaction, maintaining excellent communication with the client from the time a service call is received until the problem is resolved.


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Preventive Maintenance

Having your HVAC-R equipment checked out and maintained periodically can increase its reliability by catching potential problems before they become real problems.

Consulting / Designing

Our goal is problem solving and helping to prevent future mechanical problems through extensive troubleshooting and conscientious Preventive Maintenance. Furthermore, the NIHAC team will work directly with you to execute a strategy to meet your unique HVAC-R challenges.

Business Clients

Not just residential service.

Partnering with NIHAC

By utilizing NIHAC as an HVAC-R resource, you can depend on professional and responsive service.  We provide our clients with extra value because we handle all the headaches of maintaining your equipment and following a proven system of conscientious service and Preventive Maintenance. No customer is ever considered too big or too small. Let NIHAC save you valuable time and money by handling all the chores of maintaining your HVAC systems.

(847) 623-6700

Preventive Maintenance Service For Businesses

NIHAC’s Preventive Maintenance (PM) program is a fully comprehensive program to clean, maintain, and inspect your HVAC-R equipment on a regular basis.  Whether you operate from one location or manage multiple locations, we can design a tailor-made PM program specifically for you.  Here are some, but not all, of the inspection check points that may be included in your Preventive Maintenance program after your initial equipment assessment.

Change filters as needed
Clean evaporator coils, condensate pans, and traps
Check blowers and belts. Change belts as needed
Inspect contactors and controls
Clean condenser coils as needed
Check air conditioning operation
Check refrigerant pressures
Clean return air grills
Check heat operation


What our customers have to say about us.

Don’t take our word for it.

Actual quotes from actual customers.

“So, that one hot day in a long time and guess whose AC broke down… This guy’s! Well the good news is it’s getting fixed by my favorite company, Northeast Illinois Heating & AC. These guys rock.”

“Thank you!! I appreciate the awesome service and work you provide for me.”

“Very prompt and efficient. My furnace went out and they came the same day I called to make sure it was up and running.”

“The fastest, most professional and expedient response for service that I have ever experienced! I have used their services for both heating and cooling emergencies and have always been extremely satisfied with the outcomes! They come highly recommended from me.”

“NIHAC gets the job done.”

“I wanted to send you a quick letter of appreciation for stepping in to help me last week. Your team was prompt in responding to my request and went out of their way to understand my particular circumstance. You were able to schedule someone for a next-day fix, which was truly appreciated.”

“It is apparent that your team is running an honest business that really cares about its customers. You really took a difficult situation and made it better for my family and I. We are truly grateful. Keep up the great work!”

“Your men were so kind and thoughtful. It is so hard to find good workers who are clean-cut, know their jobs, and do it like they enjoy their work. I would recommend your company on the basis of these fine men. Thank you for sending them to do my work.”

“Thank you for everything! Your guys did a great job. I will be contacting you again for additional work.”

“Thank you for the quick response to our problem. See you soon for the yearly checkup for our unit.”

Pay Your Bill

Pay your invoices online. All major credit cards accepted.

Contact Us

If you have any questions or would like to schedule a service call, feel free to contact us via one of the options below.