Calls multiple times daily.  Most of the time they didn't say anything when I answered.  Eventually, I picked up and didn't say anything until they started talking.  The guy said he worked for a roofing company called something like Edge Roofing.  He wanted to send someone out to tell us the status of the roof.  I told him we just had the roof done and he still wanted to send someone out.  After I was more insistent that their services weren't needed, he politely said goodbye.