Do People Spay/Neuter Hamsters?

i have 2 hamsters one turned out to be a boy now i have 14 hamsters. i wonder if it is expensive to get a hamster fixed? can they use local anethesia? i guess not. i love my hamsters and wouldn’t want to do anything risky. i guess they will have to stay apart in separate cages. i heard they can pair bond and get depressed when separated??