Patch Dents in a Metal Door

Make dents disappear

Metal doors don't hide dents and scratches as easily as wood doors, but you can make your old garage service or entry door look new again with this simple three-step repair.

By the DIY experts of The Family Handyman Magazine

How to fill dents

Steel entry and service doors provide years of reliable service but will get dinged and dented. Hiding the dents is just like taping and sanding drywall except the patching material is a little thicker and tougher.

The easiest way to fill in the dents is with a premixed patching or glazing compound designed for steel doors. It's available at home centers and hardware stores. For a heavy-duty fix, use a two-part auto body filler. It's available at auto parts stores.

Apply both fillers in the same manner. Prepare the surface of the door, patch the dent and sand it smooth as shown in Photos 1 - 3 (deep dents may require a second coat after the first one dries). Prime the patch and repaint the entire door to hide all evidence of patching.

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Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • Putty knife

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • 80, 120 and 150 grit sandpaper
  • Patching compound or auto body filler
  • Primer
  • Paint