Gutters protect your home's foundation, siding, landscaping, and roof by managing rainwater flow. Most gutter systems last 20 to 30 years depending on material and maintenance. Key signs that gutters need replacing include visible rust and corrosion, sagging or misaligned sections, peeling paint or staining on exterior walls, frequent overflow during rainstorms, and visible cracks or holes. Ignoring failing gutters can lead to foundation cracks, basement flooding, siding damage, mold growth, attic damage, and landscape erosion. Homeowners can extend gutter life by cleaning twice yearly, inspecting after storms, trimming overhanging branches, and monitoring for sagging. When damage is persistent or widespread, professional inspection and gutter replacement is the most cost-effective long-term solution.