The answer to 'gutter filthy' is that a buildup of leaves, twigs, and other debris in your gutters is a common problem that can lead to water damage, pest infestations, and even foundation issues if left unaddressed. Symptoms include water overflowing the gutters during rainfall, gutters sagging or pulling away from the house, and visible debris accumulation.
The best solution is to regularly clean your gutters, typically 1-2 times per year depending on the number of trees around your home. This can often be done as a DIY project, but for taller homes or those with more extensive gutter systems, it's usually best to call a professional gutter cleaning service to ensure the job is done safely and thoroughly.