I have been a piano tech in Billings for 11 years now and apprenticed with Caesar LaMonaca. I perform all range of work from a basic tuning to action adjustments, general repair up to restringing of the piano.
A basic in home tuning starts at $100 and a concert tuning begins at $125.
If your ear or in home environment (or both!) dictates tuning your piano twice or more per 12 month cycle, a discount is offered beginning with the second tuning.