Success! You have scheduled your Piano Tuning appointment. You will receive a confirmation text or email shortly. Thank You. Remember, if you want the best, call Hess! Len Hess Piano Service. Quality, integrity, and trust since 1979. Call (210) 733-5961 “Grands A Specialty” Piano tuning, piano repair, and piano restoration. Pitch raise, voicing, and regulation. New keys, refinishing, restringing, and rebuilding.