Filling The Space Behind The Threshold Of An External Door?

This JELD-WEN Customer Care video provides a step-by-step guide on filling gaps under exterior door thresholds. The first step is to measure the gap size, clean out any debris, choose the appropriate filler material, cut the filler to size, apply adhesive, place the filler in position, secure it in place, and trim excess material away. Filling gaps under the door threshold is essential for maintaining comfort and energy efficiency in your home.

In order to fill an uneven gap, you may need to make adjustments to the threshold or replace the sweep. In this DIY project, you can learn how to make the necessary adjustments and seal the gap. A gap between the bottom of the front door and the threshold can be easily fixed with a door sweep, which reinforces the seal between the bottom of the door and the door jamb, providing extra protection from dirt.

To install a new threshold for your exterior door, follow these nine steps: remove the old one, seal and paint the new one, and find the parts, tools, and materials needed for this moderate DIY project.

Another option is to cut 1/2″ thick PVC and add slim foam rod to fill in gaps. Pack concrete or mortar up to the edge for filling the gap. Cut a piece of wood as a shim to fill in the holes as much as possible, then add door foam, trim, and caulk it to seal it.

Shim the gap accordingly with door shims so the threshold rests on the shims. Use minimal expanding foam to fill and seal the gap, and use an acoustic door seal to expand automatically and fill the gap firmly. Consider using epoxy or resin material that can be injected through a small nozzle to fill up the space.

In summary, filling gaps under exterior door thresholds is a simple DIY project that enhances the appearance of your home, improves energy efficiency, and keeps unwanted guests out.