Knowing how to take dents out of your garage door is a handy skill. Whether your kids were practicing that Wayne Gretzky hockey shot, or a new driver may have backed up a little too close to the garage door, dents happen. Garage doors are made to be light so they are easy to lift, and consequently, they often are easy to dent. However, with a few minutes and common household items, you can make that dimpled door look good as new.
Using some brute force is the most common way to get a dent out. If you have a single paneled door, it is relatively easy to get behind the dent. Once behind the dent, place a block of wood over the dent to protect the door. Then tap the wood over the dent with a hammer, gently, finding the correct amount of force until the dent begins to move. Work the hammer over and around the dent until it is completely gone.
Get a hair dryer or heat gun and a can of compressed air. Using the heat source, warm the dent for about 2 minutes. Be careful to not put the heat source too close or to heat the dent to high. This can damage the paint or cause cracking. You want the dent hot, but not red hot. The objective is to heat the entire damaged area. Then remove the heat source, and spray the compressed air upside down on the dent for several seconds. This should cause the metal to quickly contract under the cold air and the dent to pop out on its own. If it does not happen the first time, repeat the process.
There are several other methods one can use to remove a dented. If the dent is deep and jagged, many companies sell filler that can patch over the dent and painted. You can drill a small hole in the middle of the dent, place a screw, and pull the dent out with pliers, and then paint and fill the hole. If all of the above methods fail, many garage doors are paneled, and you can replace a singular panel at a fraction of the price of the door.