The answer to 'my flashing repair is failing' is that there are several common causes, including improper installation, damage from weather or impacts, and deterioration over time. Symptoms may include leaks, rusting, or separation from the roof. The best solution depends on the specific issue, but often requires re-sealing, re-attaching, or completely replacing the flashing.
If the flashing repair is a simple issue like re-sealing, this can sometimes be a DIY project. However, for more complex problems like replacing flashing, it's generally best to call in a professional roofing contractor. They have the right tools, materials, and expertise to properly diagnose and fix the problem to prevent further damage to your roof.