Common red flags include water spilling over the gutter edge, staining on siding, damp or eroding flowerbeds, sagging sections, visible plant growth, pest activity, musty odors in the attic, or peeling paint near the roofline.
As a guideline, plan cleanings twice per year—typically in spring and fall—and more often if you have heavy tree coverage, recent storms, pine needles, or a steep roof that sheds debris quickly. New installations still benefit from an early check to remove construction grit.
Professional cleaning saves time and reduces risk compared to DIY ladder work, and it ensures downspouts are fully cleared and tested. Between visits, keep nearby trees trimmed and observe the first rain after a wind event to catch issues early.