When I was just doing it as a hobby, I charged nothing to do cut outs. Why ask to be paid for my own in-experience is how I look at it.
I am building a small business now that includes cut outs and removals and I do have a flat fee for that. I will reduce that fee for seniors who, in a lot of cases, have very limited incomes.
I have homeowners sign a waiver/release form. I don't even attempt repair and I encourage them to have a handyman or contractor on hand to open the section up if at all possible.
I remove the bees and the comb then I scrub the area where the comb was with a scrub brush and soap or ajax to reduce the scent and hopefully prevent new colonies moving in.
We identify all the obvious openings/entrances so the handyman can close those up.
If you don't want to charge, don't feel bad or let others try to make you feel bad. Everyone has their own ways and motivations for what they do.
In terms of price, I try to be competitive with the pesticide companies. They will charge a certain fee also and if I want to encourage people to choose live removal instead of killing the bees, which I do, then I try to show them the benefits of my service, including comb removal and cleanup, that the exterminators will not do.
I still do it for that similar fee though because most people aren't thinking with calm, rational heads. They are panicked and afraid and want those bees gone. They don't care if the bees are dead or alive and will go for whatever is easy and cheap to get it done.