I have a locked storm door in addition to my front door. I always leave it closed and locked when I answer the door bell and talk to the person through the glass door with the main door only partially open. I would never even open my door to a stranger, let alone agree to an "inspection". In the past I received phone call from the Kansas Dept of Revenue. She first said, Are you XYZ? I said, who wants to know?" She then asked for my social security number. I declined to give either my name or my number. She apologized, gave me her 800 number and asked that I call. I did and still refused to give my SS number, telling her that she should already have it. Apparently someone with my same name, but a different SS number had failed to pay taxes. I told her that was not me. End of story?....no, they called 2 more times with the same questions and finally a threat. After I asked to speak to the Secretary of Revenue, who happened to be a friend of mine, they left me alone. The point here is that you don't have to give anyone anything......permission for an inspection or information or even your name no matter who they say they are. You must take care of yourself!!!