Everything about this service call was perfect. The technicians, Johnny Cate and his partner(so sorry I did not catch his name) called to say they were on there way, and arrived 10 minutes into the 1st hour of the four hour service schedule we were given. Introduced themselves, covered their shoes and went to work. Were here for approximately an hour, cleaned the furnace, replaced a necessary part and humidity fillter, ( great parts cost!) and arranged for furnace filter to be delivered due to my miscommunication regarding the size needed., therefore had brought the wrong size to install. They did put in a filter that is good for a month. Couldn’t be happier or more satisfied with service. Perfect combination of competent, friendly and professional! Would recommend highly to friends and family. Will be our service provider in the future. Definitely 5 stars in all categories!!!