Had ducts cleaned today, incredible job by technician. Spent the better part of 8+ hours in our 3500 sq ft house, talked with us about what he was doing and explained every step of the process. Showed us debris he would find immediately as well as before/after pictures of different areas of the house. Didn't mind us watching or asking questions. Feel much better about the state of forced air and heating. Would definitely recommend technician that did the cleaning, very thorough and took pride in what he was doing.