Best Energy Management Systems in Kansas City MO

I am so unhappy about this company, it was my first and last time to use. Even they charged 120$ for diagnosing the problem @ my kids bathroom. The tech guy mentioned about 575$ and could not explain the reason behind the high cost. I mentioned about to talk about his supervisor but he did not wait and just got 120$ and left his car. It was such an un professional act. Please double check before called them or use some other professional company.