Don’t get the wrong idea. Gutter cleaning is a very small part of my business. But I am doing more of it and I am learning from observing. After cleaning out someone’s gutters, I sometimes discover that they still don’t drain. Sometimes it’s because the downspouts have turns and bends that make it hard for debris to be passed through the system. For instance, this gutter was just cleaned out by the owners. However, water still won’t go down! Then it overruns the sides of the gutter like a waterfall.

In this case, I believe the horizontal downspout is full of debris to a level that impedes the water flow. In other cases, I have seen downspouts that are buried in the ground, making it difficult to clean it out.