If gutters aren’t cleaned regularly, they can clog with leaves, twigs, and debris, causing water to overflow and spill where it shouldn’t. This can lead to serious issues like roof and siding damage, foundation problems, basement flooding, and even gutter collapse due to excess weight. Stagnant water and decaying debris can also attract pests like mosquitoes, rodents, and insects, while excess moisture can promote mold and mildew growth. In short, neglected gutters can result in costly repairs and damage to your home—regular cleaning helps prevent all of that.