You notice water standing in troughs after rain.
Your eavestrough develops leaks, even after repairs services.
Your gutters are often overrun during downpours or get clogged.
You see that the seams are sagging or notice other problems like rotting wood, peeling paint, or discoloration.
You are having serious mildew or water damage problems near your foundation, meaning your gutters aren’t doing their job of taking water away from your property.