Superior Furnace Company in Crystal Lake

Leith Heating & Cooling is a veteran- and family-owned furnace company serving Crystal Lake, IL, and the surrounding areas. Brian, our owner, was born into this industry and uses his lifetime of experience to serve our customers with distinction. He is a proud veteran of the US Air Force. We have won several awards for our service, including the American Standard Dealer Award and the Angie’s List Super Service Award. We are also rescue partners with Hoof Woof & Meow Animal Rescue! Crystal Lake is freezing throughout the winter, with the average lows ranging from 12 to 18 degrees. You deserve a dependable heating service crew like us to keep you comfortable in your home!