According to an article in today’s Sac Bee business section those air duct cleaning coupons and deals you see are basically a scam. There is no need to clean your air ducts and these companies lie and then pressure you into spending more money on worthless services.
I read that interesting article, too. For once my cheapness has paid off! Most of my friends get their air ducts cleaned regularly and I have resisted because I didn’t want to spend the $. Since no one in our family has allergies, I concluded that just changing our filter every other monthish and vacuuming regularly would be enough to keep us healthy and safe. I am finally right about something! (at least according to the article)
I’ve always said this is something you do ONCE and thats it. There are many, many contractors trying to sell you everything from duct cleaning, home water filters to A/C service which is not so much a scam as it prey on people that are trusting. They trust contractors and are too afraid to question them.