DIY Network

How to Install a Door Threshold with Vinyl Bulb

Installing a vinyl bulb door threshold takes some extra time, but it's well worth the effort.

More in Windows Walls and Doors

  • Time

    Under Half Day

  • Price Range

    $50 - $100

  • Difficulty

    Easy to Moderate


Step 1: Remove the Existing Door Threshold

Cut the old threshold in two with a hacksaw and dislodge it with a pry bar. Once it's been removed, clean the area thoroughly.

cut old threshold and dislodge with pry bar

Step 2: Measure and Position the New Threshold

Carefully measure the opening for the new threshold and cut to fit. Next, lay a bead of caulk along what will be the back edge of the threshold.

Position the new threshold (Image 1), making sure the angle is sloping slightly away from your home to avoid water buildup (Image 2).

Step 3: Secure It Into Place

Slide the threshold forward to get a tight seal against the bottom of the door. Fasten the threshold in place.

slide threshold forward to get tight seal