I would get refunded the difference for the after-hours call, since they were supposed to come out before 5PM. Just explain it to the manager. If they're a decent company, they'll reimberse the difference. As for the $53, that's probably just their typical charge for the service. All heating and air companies charge for their services, and they're usually more than if you did it yourself.....that's just part of the business. Just like with plumbers.....they usually charge way more than the part actually cost, because they have to cover labor. But, that's just the price you pay for having a company do something for you, instead of doing it yourself.

I use Drabek and Hill, and have always been happy with their service. But, it's a large company, and I'm sure you'll always find people that don't like them....that's the case with any large company.