The answer to 'gutter filthy' is that gutters can become clogged and filthy over time due to the accumulation of leaves, twigs, dirt, and other debris. This can lead to water backup, leaks, and damage to your home's foundation and siding. Symptoms of a filthy gutter include overflowing water during rain, sagging or damaged gutters, and water stains on the exterior of your home.
The best solution is to regularly clean your gutters to remove built-up debris. This is typically a DIY task that can be done a few times per year, but may require the help of a professional gutter cleaning service if the gutters are extremely clogged or difficult to access. Regular gutter cleaning can help prevent water damage, pest infestations, and other costly home repairs.