Day & Night Mechanical Solutions installed the furnace and air conditioner in my house. The reason I had them do it was because they just put in a furnace at my mother-in-law's house about six months ago. We were satisfied with them then so we called them back. In fact, when they were doing the first installation I told them that I would give them a call for this work. The installer was fine; I had no trouble at all and we got along great. It took them two days to get everything done but there was a lot of work to do! Their prices weren't bad and I felt like they gave us a pretty decent deal. We are going to have them come in and do regular maintenance on the furnace and air conditioner. We are planning on doing that with them because they did everything they were supposed to do.