I am in the process of locating a solar company for the purpose of inspection and maintenance of an existing system that was installed by another company that no longer exists (previous owner of the home had this system installed). I called AZ Sun Services on 2 occasions; On the first I spoke to a person who asked for the system specs, which I emailed to him. He said he would call me back. My email contained all the information he requested and several ways to contact me - and he never acknowledged receipt of my email or attempted to get back to me. On the second occasion I called and left a message, it has been almost a week and no one has returned my call. I called AZ Sun Services because of the ratings on Yelp - but I have not experienced the same. I seriously question a company that thinks so little of potential customers as to not return phone calls. Good luck - hope your experience is better than mine.