To clean gutters without removing the guards, you can use a hose or leaf blower to clear debris off the top of the guards. For small debris that may have passed through, some gutter guards have self-cleaning mechanisms, or you can use specialized gutter cleaning tools.

Cleaning gutters with guards still requires occasional maintenance. A blower or hose can clear most surface debris, and some guards are designed to allow small particles to pass through while self-cleaning or directing water effectively.