The OP wrote "When I called ... I could've sworn they said about $90".
Note the following: a) It's an estimate, not a quote. b) It was made over the phone, *without* seeing the job. c) The OP has not provided *any* details. d) The figure is approximate. That's what "about" means. e) The OP seems to have some uncertainty over the amount of the estimate he was given. ("... I could've sworn...")
And it was 30 minutes, not 20.
And how can you say it's outrageous? You don't know anything about the situation, other than the numbers. You have _no_basis_ for saying that it's a ripoff, a good deal, or anything else.