K & J is dedicated to our customers

We stand behind our work. We guarantee it.

Before we come to your house, during the appointment,

and long after the day of installation and/or service.

Before you buy, give us a try.



K & J Heating and cooling 100% Customer Satisfaction Guarantee
Family Owned and Operated K & J Heating and Cooling Treating Customers Like Family Since 1998

Customer Testimonials

Thank you K & J heating and cooling customers

in Villa Park, Lombard, Elmhurst and the surrounding Western Suburbs.

Before you buy, give us a try.


About K & J


“Excellent service! Trustworthy. We will always contact K & J for all of our needs.”

-Happy Loyal K & J Customer -DuPage County

“From Kip’s first visit where he introduced me to his company and presented me with a proposal to the installation of my Trane furnace, K & J Heating & Cooling was outstanding in every aspect of my furnace replacement. He is honest, straight-forward, and reliable. His standard of workmanship and installation procedure is what other furnace companies consider ‘extra.’ I have asked my townhouse association to put K & J Heating & Cooling on our ‘Reliable Tradesmen’ list so the other 200 units here can also have an excellent experience for their HVAC needs.”

-Happy New Furnace Install Customer -Western Suburbs

“A great experience! Very knowledgeable and professional and prompt in responding.”

-Happy K & J Customer -DuPage County

“Tops – 5 stars for installation and service!”

-Happy K & J Customer -Chicago’s Western Suburbs

“K & J is the only contractor I will allow to work on my system. I have had bad experiences with others including other Trane contractors. K & J is exceptional in terms of the quality of work, honesty, integrity, dependability, and positive attitude. K & J resolved problems caused by a previous contractor.”

-Happy Loyal K & J Customer -Chicagoland

“When I was shopping for a systems, K & J was recommended to me. I was happy with their price and work, and I have continued to have it serviced by them.”

-Happy New Furnace and New AC Install Customer -DuPage County

“I like to use local people for work—I have used K & J Heating & Cooling for the last 8-9 years and am very satisfied.”

-Happy K & J Customer -Western Suburbs

“This is our 3rd year with the new furnace. We have it serviced and cleaned once a year, and so far it has been trouble free. When we call K & J, they are good about scheduling our cleaning, and the technician is always professional.”

-Happy New Furnace & Heating Service K & J Customer -DuPage County

K & J Heating and Cooling, Inc. Best HVAC Company Near Me