Sounds like illegal business activity. The caller pretended offering home renovation and refused to give his address and business name.
Somebody looking for an easy target?
Yes I got this call the other day. It was garbled but they said they were "in the neighborhood and they wanted to know if I needed some improvements done on the house. I hung up on 'em.
They called, knew my address, knew names of relatives, and said I was on some preferred list. I say d I hadn't looked or asked for anything regarding that, he made it seem like I was crazy for not knowing what he was talking about. Shady, shady, shady.