This was my first time working with Energy Savers of Columbus. I contacted them because my electric bill was exceedingly high, and I wanted to make sure it wasn't my AC system. The technician came by to perform a diagnostic, and found my system wasn't the culprit, but rather my water heater was leaking. The technician was able to figure out the problem, and save me a ton of money as a result. I will use them again.