Comment by dmoy
Plumber makes $800/hr, or bills you are $800/hr?
That's still quite good either way, but OP should understand that even in most expensive US cities a journeyman plumber is typically pulling at most like $150k-$200k without doing significant overtime. And you won't get there until 5++ years on the job.
So think more like $100/hr of actual compensation on the higher end.
Not a bad gig at all. But that $800 number comes with a lot of caveats.