Best Heating & Air Conditioning / HVAC In Cedar Lake

“Very happy with Illiana Heating and Air Conditioning from the girls in the office to my service technician, Jim he was professional kind and very patient with me I'm a senior I have a tendency to talk a lot. I recommend the company to anyone, thank you Sandy B“

“The best and most honest HVAC contractor I've dealt with. Very friendly and doesn't try to sell you anything. He tells it like it is. Not like the big name contractors. Family friendly. Highly recommend!“

“So glad we went with this company to fix our AC. It went out in the midst of a heat wave, and it was rough. Willamson Heating and Cooling answered our call right away and came out to fix it super quick. They put the ac in very nicely and cleaned up around it all within a few hours. I’m very happy with their work, and they were super professional as well. 10/10 recommend“