I charge about the same as Joel. That's just for the cleaning and oiling. If there are any repairs that's extra. I don't get alot in just for cleaning but if I do I take the jockeys off, pull the stirrup leathers out and take off all the conchos, latigo hangers and such as that off. That's probably to cheap but it gets them in the shop and I'm hungry. Sounds like you are working for cowboys, if you are and you do them a good job and treat them right they'll be back. In my little shop if you make a living with a saddle you go to the front of the line.
Hope this helps a little,
CW