To begin unroll a piece of aluminum foil large enough to cover the dent and allow you to hold it to the garage door.
How to fix a dent in an aluminum garage door.
Scrub dirt off the door with detergent then rinse and dry the area.
Taking the lighter move it over the area of the dent making sure you cover the entire area with the flame with a consistent motion for one minute.
Make sure you use a consistent motion so that the flame hits the aluminum foil wherever the stubborn dent is.
Once the foil is held to the dented portion of the garage door keep your hand toward the top corner away from the dented portion.
Use the sponge with the water and detergent to wash the dented area of the door thoroughly.
Use one hand to hold the foil in place to keep it in place.
Tap the square with an elastic hammer to straighten out the dent.
Put a strip of aluminum foil over the dent.
Lightly sand the dented area with 80 grit sandpaper to help the patching compound bond then wipe clean.
It is vital that the entire area is heated.
Holding the aluminum foil in place use your heat source it can be a lighter or something similar to apply heat against the foil for at least a minute moving the heat source at a consistent speed over the foil to ensure even coverage.
Hold it against your garage door with your hand at the edge of the foil.
How to repair a sliding door.
Use the heat source so it evenly heats up the foil.
Next take a piece of aluminum foil that is sized to fit over the dented area and place it over the dent.
Pick up your lighter and move the lit flame back and forth over the dent for 60 seconds.
Place a square of wood on the distending side of the dent if conceivable.
Below are ways to fix a dented garage door panel.
Pick up the piece of aluminum foil and lay it flat against your garage door so it completely covers the entire dent.
Keep the foil flat against the door with your hand near the corner and away from the dent.
At this point the process becomes very quick and the dent should be removed in no time.
Stand next to the dent in your garage door.
Set the aluminum foil the lighter and the compressed air canister with the top removed at your feet.
Lay the foil flush against the dent so it is completely covered.
After a minute remove the foil and spray the dent with the compressed air upside down for about 30 seconds.
Both of these repair methods are fast and easy to do.