We've lived in our current house for 5 years and have never had the air ducts cleaned. I'm sure they're pretty bad. Called a company to inquire how much it would cost - $575!! Yikes. The square footage of our house, including the finished basement, is 3,900. The company seems pretty thorough, and our house is big, but does that still seem high??
Re: Have you ever had air ducts cleaned in your house?