I did the same thing to a sail of mine a few years back. I brought it to
Scuba Center Windsurfing. They said they sent all their sail repairs to
Bowers (Bauers ?) (spelling?) sail repair near lake Minnetonka. I just
skipped the middle man and brought my sail right there.
I had a mylar sail then, I'm not sure if they repair monofilm or not. I
blew out a seam from leach to luff, and they fixed it with matching
material for $45 bucks. They also patched some of my batten pockets that
were wearing thin at no additional costs.
I also had them make a *** for a catermaran. Excellent work, but it
cost about 300 bucks. They do excellent work, but I'm not sure if they
repair monofilm. It's worth checking it out I guess.