Your water heater works hard behind the scenes, providing the hot water you depend on for showers, laundry, and cleaning. But like all appliances, it won’t last forever. Ignoring the warning signs of a failing water heater can lead to leaks, property damage, and unexpected cold showers. Here are five reasons your water heater might be on the brink of failure—and why calling a professional for replacement is the smartest move you can make.