Most rooftop solar systems need little routine maintenance, but check the panels occasionally for heavy dirt, leaves, bird droppings or shading from growing branches. Keep an eye on your inverter’s display or monitoring app and investigate warning lights, unusual noise or a noticeable drop in generation. Arrange professional cleaning or an inspection if the roof is difficult to access, and never walk on panels or work near electrical equipment yourself. Have a licensed solar professional inspect wiring, mounting and isolators if damage is suspected, or follow the maintenance advice from your installer and panel manufacturer.