Some believe alterations take months, but this depends on the complexity of the work. Simple fixes, like hemming or taking in the sides, can often be done within a few days. More intricate changes, such as reshaping a dress or modifying its structure, may take longer. If you're in a hurry, many tailors offer express services for Chicago dress alterations to accommodate last-minute requests. It’s always best to ask about turnaround times in advance.