بسم الله الرحمن الرحيم
Q: Is it permissible for the female maid to accompany the employer for Hajj without a (mahram) male relative?
A: No! It is not permissible for a woman who believes in Allah and the last day to travel more than 3 days unless a male relative accompanies her. (Otherwise) it is not allowed and this is from the difficulties of this day and age people requesting female maids to come (along with them) without male relatives. As a result problems occur from that which no one is (truly) aware (of their magnitude) except Allah. Included in these difficulties is gazing and touching whether it be the female maid or her employer. Unfortunately traveling with her, and going out and about along with her even occurs with those that are (considered) religious regrettably.
Translated by Najeeb Al Anjelesi
Source: http://www.rabee.net/ar/questions.php?cat=47&id=789