You can purchase a gutter cleaning wand that extends to 4+ feet at larger hardware stores and home centers. The gutter wand head sprays water directly into the gutter to wash away debris. The downspout takes water from the gutter. Inspect the gutter and downspout for telltale indicators of overflowing water or damaged downspouts.

1. Remove debris at the edge of the roof, in leaf guards, in open gutters, and in leaf strainers, beginning at the location farthest from the downspout.
2. Use a garden hose with a power nozzle to wash dirt and grit off the gutter, brushing debris toward the downspout with a whisk broom. If needed, use a small putty knife to dislodge material that adheres to the gutter.

To clean a downspout:

1. Wearing rubber gloves, reach down the drop outlet and pull out as much debris as possible.
2. Aim a hose into the drop outlet and flush debris through the elbow and out the bottom of the downspout.
3. As needed, use an auger to clear the downspout of debris.

To patch a gutter:

1. Clean the gutter, especially in the area that will be patched.
2. Use coarse sandpaper to remove rust or debris and smooth the surface, wiping it with a dry rag.
3. Cut a piece of fiberglass mesh larger than the hole, then use roofing cement to attach the patch to the inside of the gutter.
4. Spread additional roofing cement over the patch to securely fasten it to the gutter.