Xiaoxu W. says, "Karl was a great help. He came in for the on-site diagnosis the next day after our first contact and found the issue right away. He helped me install a new water heater the next day in 2 hours and left no mess in the basement. The funny thing was, when we were talking about which water heater model is better for my case, he noticed that my HVAC system was temporarily stopped working. Then he took a look at it and pointed out that the system was off due to an error. He then offered me a quote for the hvac unit. After comparing a quote from someone else, Karl’s price is more reasonable. After his perfect job done for the water heater, I asked him to help me with the hvac system and a week later, he got that done within one day as well. Excellent team, perfect job done. A 5-star for the customer services and the communication."See more