I called early on a Saturday morning for emergency service and not only did Dennis answer his phone personally, but he told me he would be over in about 2 hours. True to his word, he was there when he said he would be. He took the time to explain the problem to me and what it would take to fix it. He also pointed out issues that would need attention in the near future in order to avoid other emergency calls. After the repair was completed and he left, I had a question about something he told me to keep an eye on. When I sent Dennis a text, he immediately called me back and offered to stop back again in a few hours (on his personal time) to address the question. It was well past Saturday work hours when he came by. I was very impressed with his customer service and his attitude as well as his work. I will be calling him again.