When you call Mid-American for your heating and air conditioning needs you’ll get the same customer friendly service that Northern Illinois and the surrounding areas have relied on since 1991. At Mid-American, we want your business and we do everything we can to make it easy for you to do business with us. We’re open 5 days a week, with "emergency service" for any weekend trouble. Our staff receives rigorous training. Each employee is focused on providing you with service that’s dependable, quick and courteous. Our satisfaction guarantee is simple… we won’t quit until you’re satisfied. Guaranteed.