How to Seal a Garage Door From the Rain

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A seal on the bottom of your garage door helps to close the gap between the bottom of the door and concrete or asphalt of your driveway. It prevents drafts and keeps water from leaking into the garage and rodents from entering the garage. Over time, the seal can become worn-out or damaged, compromising its integrity. Replacing the seal is a fairly easy task to complete.

Things You'll Need

  • C-clamp
  • Pry bar
  • Screwdriver
  • Hammer
  • Nails
  • Utility knife
  • Flat-head screwdriver
  • Tape measure
  • U-shaped astragal
  • Silicone spray
  • Pliers

Seals That Are Screwed or Nailed to the Door

  • Raise the garage door to a height that you can comfortably work at and attach a C-clamp to the track underneath the door to lock it into position.

  • Remove the old door seal. If it's nailed to the door, pry it off. If it's held in place with screws, unscrew it.

  • Attach the new seal to the bottom of the door. Hold the seal against the bottom of the door and install the nail or screw through the seal into the door as you move along the width of the door.

  • Trim the excess seal from the door with a utility knife.

Seals That Use a Channel

  • Raise the garage door to a height that you can comfortably work at and attach a C-clamp to the track underneath the door to lock it into position.

  • Remove the old door seal by opening both sides of the channel on both ends of the door with a flat-head screwdriver.

  • Measure the width of the door and cut the new seal, called a U-shaped astragal, to fit.

  • Slide the U-shaped astragal into the channel and across the door. If the astragal is sticking, spray silicone into the channels to ease the installation process. Crimp down on the ends of the channel on both sides of the door with pliers.

References

  • Photo Credit Jupiterimages/Photos.com/Getty Images
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