I recently did this.
A local guy said he'd do it for $15 per if I bring in the wheels off the bike, or $100 if he has to do the work. His real business is building custom bikes and trikes. Was doing me a favor.
The local, private, bike repair shop wanted $30 per if I brought in the wheels off the bike, or $70 if they did the work.
A Honda shop charged $45 per with the wheels off. I went with them because they were convenient to my commute, and did it while I waited. They also caught a mistake that I had a wrong rim strip, and replaced it with an appropriate one. They're all old-timers, so I trust them anyways....