Telework or home work has developed in an important way over the recent decades. Some consider it as a way to better balance professional and personal or family responsibilities, while others see in it a source of disruption in personal and family life. While some research has looked at advantages and disadvantages of telework from a general point of view, few have analysed in detail the temporal dimension, and the perception of teleworkers concerning these potential temporal conflicts. We wanted to look into this issue on the basis of a few detailed case studies, after having observed that Canadian workers are doing a non negligible number of hours of work at home, and highlight the paradox that while telework has often been put forward for work-life or work-family reasons, it may also invade the private sphere and lead to less clearly defined limits between private and professional life.