I'm Ethan Pingel, founder of Sage Heating & Cooling. I'm a mechanical engineer with a degree from the University of Arkansas and professional HVAC engineering experience. Before that, I spent four years handling maintenance and repairs for a property management company in St. Louis, and I ran my own tree service business for two years. I started Sage Heating & Cooling to give Charlotte homeowners and landlords what I always wanted as a customer: someone who understands how the whole system works, explains the problem in plain English, gives a fair flat price up front, and stands behind the work. If you're not happy, you don't pay.