Modern gutter systems are built to last for long periods through all manner of conditions. However, they do require a degree of vigilance. It would be most helpful to clean your gutters twice yearly, or more often if there are a lot of trees on your property. When cleaning out your gutters, check the individual parts and connections for damage, leaks, or corrosion, and replace them when necessary. Use gutter guards to cut down on the amount of debris that comes in contact with your downspouts to prevent clogs.