When you give us your key, we will use your first name to tag it which makes it distinguishable only to members of our company. No address will be included or anything. The key will then be put in our safe at the head office until the day of cleaning. When the cleaning is accomplished, the key will go back in the safe until the next recurring cleaning appointment. If somebody not from our company happens to gain possession of the key, they won’t know who it belongs to.