Clean once in mid to late March just before April showers. During the rough winter weather the balance of leaves, twigs and debris will fall from the trees. Early Spring is also the time when birds and animals will begin making their nests.
Once in May or June. Falling seed buds, blossoms and helicopters clog gutters and downspouts and germinate with spring rains.
Mid to late October. Summer rains and winds have pulled leaves from trees and washed them into the gutters. This cleaning will also catch the first wave of shedding fall leaves. An early freeze can leave you with too much weight in your gutters throughout the winter.
Final cleaning in late November or early December when the majority of the leaves are down. Do not wait until the last leaves have dropped! With proper and regular gutter maintenance the last few leaves to drop will not clog your gutters.