Sagging and leaking gutters can cause damage to your home that may cause thousands of dollars to repair. If a gutter is not draining properly, it’s either not sloping toward the downspout or it’s sagging and needs to be raised. When your gutters or downspouts get clogged, water will collect in the system. In the summer, the clogged water can creating a breeding ground for mosquitoes. In the winter, the clogged water can freeze causing split downspouts or shingle damage.