You don’t need a PhD in physics or a tool belt that weighs fifty pounds. The basics are simple: a ladder, a drill, some gutter hangers (the metal clips that do the heavy lifting), and a box of self-tapping screws. Oh, and please get a buddy to hold the ladder—no one wants a trip to urgent care over a downspout.
Pro tip: Measure twice, buy once. That old roof line might be slightly crooked, so trust your tape measure, not your eyes. You’ve got this.