Hi Dewey,
The going rate is $80-90 for a complete rewind and rebuild for both coils. With humbuckers, usually it's only one coil that's causing the problem and you can expect $50-60 on that. I know it seems expensive, but it's a more delicate and time-consuming process than most people realize.
Depending on how the pickup was made, if it has a cover, if it's been potted in wax, or a myriad of other factors, it can take an hour just to disassemble and tear it down. I use a micrometer and measure the old wire and try to match the wire diameter as closely as possible to a spool in my wire stock that has the same insulation - and if it's a pickup I haven't worked on before, I'll unwind between 400-800 turns of wire by hand first so that I can count the turns of wire on each pass back and forth across the bobbin, also taking notes/measures regarding the size and shape of the coil. Doing this gives me all the information I need to make the rewind be as accurate and authentic as possible. And then after that, it's another hour to rewind, rebuild, tape up, reinstall the cover, wax pot, and clean up to send back to you. If any pickup maker charged their normal bench rates for all of that, they'd get laughed at.
When it comes to humbuckers, most of us in the industry compromise and donate a portion of our time to keep the price reasonable. I know I do!
PS: Thanks for the kind words, fellas!