How often should my piano be tuned?

The approximate 220 strings on your piano exert about 40,000 pounds of tension on the plate and frame, and about 600 pounds of down bearing on the bridges and soundboard. Seasonal changes in the humidity and temperature, as well as the normal, continual decrease of static tension, cause all pianos to go out of tune.

 Depending on where you live, the degree of humidity and temperature change from season to season, how much and how hard the piano is played, and the quality and condition of your piano, your piano could need tuning two to four times each year. During each service call our technician will check and tighten the pin block bolts as needed (and rim bolts in grands), check and tighten the bench bolts, and inspect your piano for repairs and adjustments that might be needed or recommended.

What do piano manufacturers say about tuning?
Common issues or problems associated with tuning