Starting off, you won’t make much as a plumber in Burbank, Ca, if you can’t build up your professional network. The upstate area is quite posh, and the people living there don’t just let subpar technicians get in on their house plumbing. Try consulting with your mentor from where you first took up plumbing, or take referrals from your plumbing school.
After you’re all set up and have made a name for yourself, you can go on to charge premium rates. All in all, you can make something around 180-250K a year. Excluding the necessary expenses like rent, food supplies, insurance, and tax, you should be expecting a net surplus of about 100K if you can save up.
Try looking at Plumbing Dudes for some of their plumbing services. You’ll get a grasp of how much the premium service providers usually charge, and you can make your way from there. I hope you catch a break starting as a new plumber in California!