It can be frustrating to put on your favorite pair of pants only to realize the zipper is broken. You then realize that, although small, the zipper is a crucial component of many pairs of pants. Instead of throwing the pants away, follow the steps below to fix the zipper and wear your pants again in no time.
First, you need to determine the extent of the zipper damage. This will help you decide if you need to replace it or if it can possibly be repaired. You should replace it if a tooth is missing from the middle or upper parts of the zipper. If the damage is near the bottom of the zipper, it may be able to be repaired. You will need to go through a few steps to determine if this is the case.
Zip up the zipper above the tooth that is damaged. Sew stitches around the rows of teeth right above the missing tooth. This will create strength so that your zipper's slider can easily glide. Next, guide the tracks of teeth into the slider, and pull through so they are resting evenly. Pull the slider up until the teeth at the bottom are locked. Use a needle and thread to sew another stop at the bottom of the tracks.
At this time, you will be able to tell if the zipper can be repaired. If so, replace it, making sure to purchase one of the right length and color. Remove the old zipper using a seam ripper, and then pull out all loose threads. Pin the new zipper into place and sew it in just as the old zipper was sewn. Insert the new zipper tracks into the groove of the new slider and push the slider to the bottom. Pull up so the bottom teeth are locked, and then sew a new stop there. Lastly, repair the stitching at the top that holds the zipper in place.