can be as little as $15 and we can do it while you wait. or it can be $50-$100 if the zipper needs replacing. I cant say for sure unless I see it in person. If you are missing pieces at the bottom of the zipper then it will be a full zipper replacement. If the zipper is separating when you try to zip it up, then it's a slider replacement which is $15.
Depends on how much work it needs. I had a sleeping bag zipper repaired for around $20.
It depends on the extent of the damage. I had one repaired for under $20.
Thanks! Your answer is awaiting moderation.