How long do you usually recommend customers go between duct cleanings? During a routine HVAC duct cleaning, a man in Richland, Washington, found "dozens of snakes" in the ducts of his residential home. 

No word on when was the exact timeframe between his last duct cleaning and the recently discovered slithering stowaways, but the thought alone is enough to make anyone pick up the phone and make an appoinment with their local duct cleaner today.