If your ceiling has water stains or discoloration, you need a professional to repair the leak and the damaged ceiling. With or without stains, a persistent musty odor could indicate moisture problems and mold growth. A sagging ceiling could also indicate the presence of moisture or structural issues that require expert repair. Peeling or bubbling paint and cracks are other signs your ceiling needs replacing or repairing. No matter the ceiling problem, Mr. Handyman has professional plumbers, carpenters, and drywall specialists ready to help.