The answer to 'gutter buildup' is that it is a common problem caused by leaves, twigs, dirt, and other debris accumulating in your home's gutters over time. Symptoms include water overflowing the gutters during rain, gutters sagging or pulling away from the home, and even pests nesting in the debris.
The best solution is to regularly clean out your gutters to prevent buildup. This is typically a DIY task that homeowners can do themselves 1-2 times per year, in the spring and fall. However, if your gutters are high, damaged, or the buildup is severe, it's best to hire a professional gutter cleaning service to ensure the job is done safely and properly.