How to Fix a Broken or Separated Zipper
Remove the Bottom Stop From the Zipper. Position the Zipper Pull. Realign the Zipper Teeth. Reposition the Zipper Pull. Thread the Sewing Needle. Create a New Zipper Stop. Repair Above Damaged Teeth. Secure Thread.

How do you fix a separated zipper on a dress?

If that’s the case, we recommend using a professional.
Remove Your Broken Zipper. Use a seam ripper to remove the current zipper on your dress. Bring the Seam Lines Together With a Temporary Stitch. Line Up Your New Zipper. Attach the Zipper With a Temporary Stitch. Secure the Zipper With a Sewing Machine.