Price varies according to the job.
Regulation deals with the mechanical aspects of the piano and involves the adjustment of thousands of moving parts which make up the piano’s action. While regular tunings are important and necessary for proper piano care, tuning only takes care of the pitch of the piano. The feel of the keys beneath the hands of the pianist or the ability to repeat a note rapidly is affected by the regulation of the piano action.
Pianos are complex vehicles of expression which the performer uses to communicate through music. For rapid trills, thundering fortissimos, and delicate pianissimos, the piano must be ready for the unrelenting demands of the musical score. Without a properly regulated action, execution of these passages and dynamic changes are much more difficult or even impossible. A well-regulated action allows the pianist to achieve the most power and responsiveness from the piano.