How to Remove & Replace an Aluminum Threshold

Aluminum door thresholds lay at the base of the door frame and prevent leakage of air in or out of a home or room.
Keep your front door weather-proofed with a new aluminum threshold.Keep your front door weather-proofed with a new aluminum threshold.
This helps to keep electricity and gas bills low by preventing loss of heated or cooled air. The threshold also keeps insects and other weather elements from entering into the house. Remove and replace damaged aluminum thresholds to maximize your home's efficiency. Fortunately, replacing aluminum thresholds requires less work than replacing wooden ones.

Step 1

Open the door completely.

Step 2

Remove the screws holding the threshold in place with a drill.

Step 3

Remove the old threshold and vacuum or sweep out any collected dirt and debris.

Step 4

Measure the old threshold or, if it is bent or severely damaged, measure the threshold space.

Step 5

Cut a new aluminum threshold to size with a hacksaw. File the edges smooth with a metal file.

Step 6

Drill two or three holes evenly spaced in the center of the new threshold. Set into place and drill out holes in the wood door frame corresponding to the threshold holes.

Step 7

Remove the new threshold and caulk the perimeter of the threshold space.

Step 8

Set the new threshold in place once again and drill into place with wood screws.

Things You Will Need

  • Drill
  • Measuring tape
  • Hacksaw
  • Metal file
  • Hand-held vacuum or broom
  • Caulk
  • Wood screws
  • Plywood (optional)

About the Author

Darci Pauser began writing in 2001. Her work has been featured in publications such as the "UC Berkeley Undergraduate Journal," Indybay and the West Texas Weekly. Pauser holds a certificate in sustainable agriculture from California's Green String Institute and a Bachelor of Arts in anthropology from the University of California, Berkeley.