GIVE US A CALL! 708-452-7522

Welcome to Engler Heating & Air Conditioning Co.

Quality HVAC Service, Repair, & Installation in Chicago & Northwest Chicagoland Areas

Since our company was founded, we have focused on providing reliable, honest, and professional services. We serve both residential throughout the city of Chicago and surrounding suburbs. Our company service and installs most brands of air conditioning systems, furnaces, boilers (steam and hot water), humidifiers, unit heaters, gas, piping, and water heaters. In addition, install certain brands of HVAC equipment.

Frequently Asked Questions

Do you offer same-day HVAC service in Chicago and the surrounding suburbs?

Yes. Engler Heating & Air Conditioning Co. strives to provide same-day service for heating and cooling repairs in the Greater Chicagoland Area (service map) when scheduling allows. If you have no heat or no air conditioning, contact us immediately so we can prioritize your appointment.

What areas do you serve for heating and air conditioning repair and installation?

We serve the city of Chicago and surrounding suburbs, including the Northwest Chicagoland area. Counties Include Lake County, Cook County, Mchenry, Dupage.

What HVAC brands and systems do you service and install?

Our technicians service and install most brands of HVAC equipment. We work on furnaces, central air conditioning systems, boilers (steam and hot water), humidifiers, unit heaters, water heaters, and related gas piping and sheet metal work. If you are not sure whether your system is covered, give us a call and we will confirm.

Do you provide free estimates for new HVAC installations or replacements?

Yes. Engler Heating & Air Conditioning Co. provides free estimates for new HVAC installations and replacement projects. We will review your current system, recommend the right-fit options for your home or building, and explain the expected cost and timeline.

What should I do if my furnace stops working in the winter or my AC stops in the summer?

First, check your thermostat settings and replace the thermostat batteries if needed. Next, verify your breaker is not tripped and your furnace filter is not severely clogged. If you still have no heat or no cooling, call Engler for HVAC repair . Fast diagnosis and safe repairs are important, especially during extreme temperatures.

Do you offer emergency HVAC service on Sundays?

Yes, Sunday hours are emergency only. If you have an urgent heating or cooling issue, call and we will help you determine the best next step and availability.

How can I schedule HVAC service online?

You can use the “Book Online” option to request an appointment quickly, or call our office 708.452.7522. Online scheduling is a fast way to secure a preferred time for HVAC service, repair, or estimates.

Testimonials

    
 
 
         
   Julio Neira 
 January 17, 2026
 
 
 Trustindex verifies that the original source of the review is Google. We've been working with Brad and his team for over 25 years. The team is reliable, professional, and honest. We'll be using them for another 25 years!
  
 
        
   Jean Guarino 
 January 8, 2026
 
 
 Trustindex verifies that the original source of the review is Google. My furnace stopped working on a very cold day in December. Someone from Engler came out that day and got it going and it now works fine. I was very happy with Engler's service.
  
 
        
   Eileen Bowery 
 December 20, 2025
 
 
 Trustindex verifies that the original source of the review is Google. I have been working with Engler for at least 20 years.  They are very responsive and always get the job done.
  
 
        
   jerry flynn 
 December 19, 2025
 
 
 Trustindex verifies that the original source of the review is Google. Been using Engler for about 20 years.   I own apartments on N Side of city.  Does all my furnace and hot water tank work. Very good.  Some long term employees and they  know their stuff. Recommend.
  
 
        
   kim hemphill 
 December 16, 2025
 
 
 Trustindex verifies that the original source of the review is Google. Engler are always proficient, professional, with kind personalities, for the last 30 years we've used them for heating and cooling
  
 
        
   Joseph Bosco 
 December 13, 2025
 
 
 Trustindex verifies that the original source of the review is Google. Brad Engler, and before Brad, his father, have been servicing our home's HVAC needs for over 38 years.  Engler Heating and AC are like family...always there for us over the years with exceptional service and fair pricing.  I can't recommend them enough!!
  
 
        
   Anthony DeMunster 
 December 5, 2025
 
 
 Trustindex verifies that the original source of the review is Google. Had no heat this morning in the middle of a cold spell. I determined that the pilot light was out and wouldnt stay lit. I called Engler Heating and Cooling at 11:50am.  Its now 2 pm and my heat is back up and running. They made it here within a couple hours of my initial call. Bruce was able to diagnose and fix my furnace within 15 minutes. Their prices are reasonable as well. I can see why they have such great reviews. Will definitely use them again if I'm in another bad situation. Hopefully not though!
  
 
        
   Gail Schwartz 
 December 2, 2025
 
 
 Trustindex verifies that the original source of the review is Google. I have used Engler for quite a few years to service my air conditioner and heating system.  They are very reliable and do a great job.
  
 
        
   Property Management 
 November 26, 2025
 
 
 Trustindex verifies that the original source of the review is Google. Highly recommended, we are a property management company, they service many of our properties from furnace maintenance to central air conditioning. I did have rooftop unit installed last year they did a great job, dependable & professional the service and installation cost was reasonably priced.