Yes, you can use a pressure washer to effectively clean debris, dirt, and grime from your gutters, but it must be done with caution to avoid damage. Always use a low-pressure setting, with a recommended range between 1,200 and 1,800 PSI. Excessive pressure can bend or dent aluminum gutters, damage seams, peel paint, or even knock shingles off your roof, potentially leading to leaks and moisture issues. For a safer alternative, consider soft washing or cleaning them by hand. When using a pressure washer, it is safer to use gutter elbow extensions from the ground rather than climbing a ladder, as the force can cause instability. Due to the risks, you may want to hire a licensed and insured contractor for the job.

To clean the tops of gutter guards, use a soft-bristle brush or a leaf blower to remove debris like leaves, twigs, or dirt. For stubborn grime, spray the guards with a garden hose, directing water downward to avoid forcing debris into the gutter. If the guards are removable, take them off and rinse thoroughly before reattaching. Regular cleaning, especially during fall or after storms, will help maintain their effectiveness.

Properly installed gutters should be able to function normally in heavy rains. Allowing water to overflow can cause water damage around your home's basement or foundation. If the overflow is caused by a simple clog, paying a gutter cleaning cost of $125 to $250 may be enough to get the gutters running clear again. If there's a larger issue, you may need to repair or replace your gutters.

Shingle granules can be cleaned out of gutters using a small scoop or a hose, depending on the quantity of granules and how much other debris is in your gutters. First, clear your gutters of leaves and other debris. This may remove granules in the gutters if they are mixed in with the debris. Use a plastic scoop to remove larger quantities of granules or a hose with a high-powered nozzle for smaller amounts, and collect and dispose of the granules once they’ve been removed.