Piano tuning is an art as well as an acquired skill.
As a musician and a trained tuner and technician, I'll take a personal interest in tuning and servicing your piano to ensure that it performs to the best of its potential. Pianos go out of tune mainly from climatic changes, so the humidity changes from summer to winter heating effect tuning the most. Serious musicians may require two or more yearly tunings, but for most people a yearly tuning is sufficient. To prevent harm to its performance and value, a piano should not be allowed to sit for more than two or three years without attention.