Overview (3) Heidi Klum was born in Bergisch Gladbach, a small city near Cologne, Germany, in 1973. Her career as a top fashion model and swimsuit star began almost by accident when, on a lark, she submitted photos to a model competition hosted by Petra, a young woman's magazine.
The National Air Duct Cleaners Association recommends getting your air ducts cleaned every three to five years. Ed Mack, owner of Air Duct Professionals in Lake Elsinore, California, says homeowners should consider doing it every two to five years, depending on their circumstances.
A reputable company, Hannah says, should perform an inspection to see whether cleaning is warranted. He estimates that a third of people who call him for duct cleaning donât, upon inspection, actually need it. In an average-size home, the service should take two to three hours and cost $275 to $350, he said.