Great Experience! I had put off having my ducts cleaned for years. I researched the process and companies for a while. There as so many shady businesses that make these claims and either overcharge and/ or don’t perform what they say they have done. Safety King shows you pictures of before and after as well as walkthrough before and after with detailed explanation. You need ultra strong equipment with high psi rating to clean your system – commercial grade, not just a “strong” vacuum. And there should not be dirt and dust all over your house afterwards (that’s what happened to my neighbors using another company). This is the only company in metro Detroit who is certified other than a commercial restaurant cleaning company!