They showed up to my home while I was out. I was specifically told that someone would call me 30 minutes prior to arriving. I just happened to get back home earlier than planned when they were getting in their truck to leave. I asked them in and they obliged. One of the two techs asked to visit the main unit and shortly after showed me a photo of something he supposedly photographed in my duct work which indicated mold. He immediately told me that the job would not be $99 but would be more around $2000. He had me a dirty, worn sheet of paper which explained (in poorly written English) what this type of situation entails and how Sears would handle it. I could not believe this was a nationwide company I was dealing with. I have attached the paper they gave me. He handed me another paper which vaguely named and priced the items that totaled the $2k for the work. I think the document attached pretty much says it all. I called the office and asked to have a manager call me but nobody has called. Even if what they said about my a/c duct work is true, I would never have them touch my system. I've called another company. Don't trust Sears!