It depends on the material of the blind, how often it is being used, and the level of sunlight exposure. Generally, wooden blinds should be replaced every 3 to 5 years, fabric blinds every 1 to 2 years, and metal or vinyl blinds every 6 to 12 months.

It depends on a variety of factors, including the type of blinds, the material they are made from, how often they are used and whether or not they are cleaned regularly. Generally speaking, blinds should be replaced every 3 to 5 years.