How To Replace An Exterior Door Threshold

A properly installed threshold helps to keep pests out but it also reduces cold drafts and helps maximize energy efficiency.

How to replace an exterior door threshold - Step 1 buy the threshold. Open the door you are replacing the threshold on and measure the gap from the bottom of the door to the floor. How to replace a door threshold in 9 steps step 1. Mark the new threshold based on your measurements.

Measure the length width and thickness of the old threshold and have a replacement with a similar pro file on. If necessary undercut the doorstops and door jambs to fit the threshold. Click enlarge this image to view illustration labels. Now use the tape measure to find out the width of the threshold as well as the length.

Thresholds come in wood and metal both of which come with a rubber gasket for sealing out the cold. Carefully measure the doorway for the new threshold as you would for an exterior threshold detailed in step 2. Know the parts that make up the exterior door threshold. Over time thresholds can suffer wear and tear thanks to foot traffic and exposure to rain and snow.

If your threshold is in rough shape replace it. Before replacing a door threshold you first need to buy your new one. The door threshold plays a critical role in keeping your home airtight.