Blue Mountain Outfitters in Marysville PA (near Harrisburg) does boat repair. I haven't used their services, but I have heard positive reports from a couple of people who have.
Have you considered doing it yourself? Fiberglass repair is really not that difficult if you have the time. You can find many short instructional videos on youtube, or the Jamestown Distributors website, or the websites of some of the major epoxy distributors like West System and System Three. You could watch a few of these and see if you feel inclined to tackle the repair yourself.
Kayak & Canoe Outriggers
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