How to Weatherstrip a Garage Door

Written by james cooper
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How to Weatherstrip a Garage Door
Garage door (red roller door image by green308 from

Installing weather stripping on your garage door will keep your garage warmer in the winter, cooler in the summer, and clean and dry all year round. Weather stripping fills the gap at the bottom of the door where air, dirt, and water can enter even when the door is closed. You can purchase garage door weather stripping kits at your local hardware store. In addition to this, you'll need some galvanised nails. You should also coat the bottom of the door with a wood preservative before installation to keep moisture from accumulating between the weather stripping and the door.

Skill level:

Things you need

  • Garage door weather stripping kit
  • Half pound of 1 in. galvanised roofing nails
  • Staple gun
  • ½ in. staples
  • Hammer
  • Flat pry bar
  • Screwdriver (flathead)
  • Sandpaper (medium grade)
  • Clear wood preservative
  • Paint brush
  • Utility knife

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  1. 1

    Pry the old weather stripping from the bottom of the garage door with a flat pry bar. Remove the nails with the claw on the hammer, and the staples with the flat head of a screwdriver. If you cannot remove some of the staples, hammer them flat against the bottom of the door.

  2. 2

    Sand the bottom of the door. Paint a layer of clear wood preservative on the bottom of the door to protect it from moisture.

  3. 3

    Place the new weather stripping against the bottom of the door and cut the piece so it extends a few inches beyond either end of the door.

  4. 4

    Start at one end of the door and use the staple gun to staple the weather stripping to the underside of the door; staple every three inches.

  5. 5

    Trim each end of the weather stripping with the utility knife so it is aligned with the ends of the door.

  6. 6

    Hammer nails in between the staples to secure the weather stripping.

  7. 7

    Open and close the garage door to make sure the weather stripping clears the sides and doesn't impede the functioning of the door.

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