Heartwood House Detox length of stay and severity will depend on many factors. While drugs and alcohol can leave the body in a couple days, the psychological and physical symptoms often require more time. Our required minimum length of stay is 5 days, with some people staying for up to 2 weeks. On average, clients can expect to be at our executive medically assisted detox facility for between 5-10 days. Each individual is different and will be assessed multiple times each day to determine the appropriate length of stay.