Wearing your sarong at home even with workers there sounds fine to me. It's your home, you are free to wear what you want. As far as being nude inside the home while they are working, as long as you are discreet, I would do it. One way to broach the topic is to welcome them in the sarong and mention that it's more comfortable and easy to put on when someone comes calling since I'm usually nude in the house. Depending on their reaction, I might just tell them that I would prefer to be nude in the house as usual while they are there if they don't object. It's likely that they will not object since it is your home.

This post was edited