No, it didn't cost me extra to have the vet do it, but my vet is one of a kind. He also doesn't charge me office visits for my snakes, only for treatment. Same with the rats. The only animals that get office visit charges are the dog and cats.
He's the exotics vet at my dog and cat clinic, and I have another vet on my speed dial for anything bigger than general wellness or internal parasites that only works with herps.