Place a washer on the other side and then insert a screw. Pull gently with pliers and carefully repeat the process until the dent disappears. You can apply aluminum fillers or use a manual rivet to seal the hole. The truth is that most blows are not that serious.
You can usually pull them out with a small hammer or a pair of pliers. Here's how to fix bent gutters with a rubber mallet. First of all, locate where exactly the dents are. Then, lightly hitting these dents, they disappear.
Do this for all other areas where there are dents. When using a rubber mallet, make sure you apply the correct pressure, otherwise the damage could worsen. To remove the dent, the gutter repairer must grasp the metal in order to remove the dent. This can be done by placing a washer inside the channel and inserting a screw through the washer to be able to grasp and pull the screw from the outside.
Aluminum gutters are easily damaged by branches and expanding ice. This creates an unsightly appearance for the home. If the dent or curvature of the gutter is relatively small and localized, you may be able to repair the curvature of the gutter sufficiently so that you can't see it from the ground. Whether or not the dent in the gutters affects the functioning of the gutters, you probably want to remove the dent so that it doesn't bother your eyes.
The only time a dent is a cause for concern is when the gutter collapses or is crushed to the point where it can no longer do its job. That means you can't just cut a dented section of the gutter and “splice” a new piece of gutter.