Replacement sliding patio doors are not only sturdy and durable, but they are also easy to operate and require little maintenance. To help ensure your patio door reaches its maximum life expectancy, all you need to do is ensure that the tracks are clean and free of debris. Most issues with patio doors involve the tracks or the rollers attached to the doors. If you keep the tracks clear of debris and gunk, you will help prevent many of the main issues that can cause a patio door to not work properly.