I charge $40 a pound in 1 pound increments and $70/hr for labor on common refrigerants that aren't under a manufacturing ban by regulation. R-134A, R-134A, and R-410A are related. I'll charge $170 a pound on refrigerants which I can't get anymore like R-12 or R-22.
Let's Get It Fixed!
HomeX virtual experts will assess your issue (for free!) and can resolve simple problems.