We own the town home our daughter lives in and when the valve on the brand new water heater went out on a Saturday...I told her it would probably have to wait till Monday because of the weekend. I figured I could at least get the ball rolling and called the hardware store. I gave them the date we purchased the unit and they let us know that part was under warranty. They made a call to Rheem, the manufacturer, and they, in turn, arranged the service call. I was amazed by how easy and convenient everything was for a Saturday service call. Rheem contacted Day & Night Mechanical Solutions Inc., and they were at the town house later that same afternoon. They arrived ready to work, with the part in hand, and it didn't take longer than 15 minutes. He knew what he was looking for and he was very professional and respectful as well. Honestly, I was blown away by the entire experience. All I know is that I contacted Rheem and they selected Day & Night Mechanical Solutions Inc.. Everything was handled for me, in excellent fashion, and the unit is working great! There were no hidden fees or emergency service charges, that I know of anyway. I was very impressed by the entire experience and I definitely recommend Day & Night Mechanical Solutions Inc..