How many amps is the service to your garage now? If you garage panel has 220 you can add a 220v plug in minutes. I ran 60 amp service to my garage and did everything myself.
Wire and panel cost me a fortune.
If you are hiring someone they will be able to inspect your home panel and tell you how much you can run to your garage.
All you need to do is look at the equipment in your garage and decide what your mandatory requirements are.