I would highly recommend this company! I used their services twice now. Once to install a humidifier unit on my furnace and to clean my service. Second was to install a dryer vent. They are professional, honest (which is very hard to find around here) and very nice. They know what they are doing. They even fixed the annoying knocking noise that the furnace was making just by looking at my ductwork Ivan knew what the problem could most likely be and he was right! Call these guys!! You won’t be disappointed. Even the secretary and owner were very helpful!