An interchangeable gutter cleaning appliance includes an extension assembly having a first fitting at a distal end, a holder having a second fitting at its proximal end and a gutter tool interface at its distal end, and an interchangeable gutter tool. The second fitting is coupled to the first fitting of the extension assembly. The interchangeable gutter tool is installed on the gutter tool interface by inserting the gutter tool interface into a mounting assembly in the interchangeable gutter tool, and the interchangeable gutter tool is removed from the gutter tool interface by removing the mounting assembly from the gutter tool interface.