I did mine myself. An old employee of mine started doing it. He showed how in a quick lesson. He told me to envision the dent as an orange with all the dimples. You push the dent out by pushing on it in a million places a tiny bit at a time. I took some bad dents out of my doors. Slow, slow, slow, that is the secret. I used the end of a plastic screwdriver handle and a small hammer. You need to take the door panels off. The doors are single layer. The aluminum is very soft and easier than steel. Get real good light and watch your progress closely. You don't want to go to far. I was amazed at the outcome. It is time consuming and very rewarding. I am very sure a pro can do better, but if you are patient and skilled you can get some impressive results. My door looked like it took a hit from a golfball sized object. You can still see it, but it is eleventy billion times better. I worked on the door dings also, they just disappear as you tap. The pro used long steel rods with spoon shaped ends to coax the dents out by reaching in through the side of doors wherever they can find entry. Take your doorsapart and give it a try. Make sure to tighten all the attachments while your in there. Like the mirror and door handles. Clean the doors out real good too.
