Khalil came to my house within about a half an hour. I called him at about 4:30 on a Saturday. My water heater gas valve was going out and I could not get it re-lit which I can usually do. He got to work and told me that it needed to be replaced which I was able to do the following Monday because I am fairly mechanical, however I had some problems and he was nice enough to help me over the phone with some of my questions. His price was very fair. Nice guy, I will use him again if I need help in the future.