Donnie came to my home to conduct a furnace checkup. He was very professional. He found a loose wire on one of the zone controls and correct that free of charge. He cleaned inside the furnace and ran various diagnostic checks.
He found a few issues with my humidifier and furnace fan which I will probably have him back to correct. He was not pushy nor did he try to sell me on any return services. Based on his knowledge and performance I will ask for him next time I use their services.