Sandy Grassmuck
Second-Generation Entrepreneur | Certified Sound Practitioner | Real Estate Trailblazer

Sandy Grassmuck

Sandy Grassmuck is the visionary founder of The Sound Sanctuary, a space devoted to peace, restoration, and soul alignment. A second-generation entrepreneur, Sandy built a thriving real estate brokerage and earned a reputation for leadership and success in the fast-paced world of business.


But even in the height of her achievements, she felt something was missing. After personally experiencing stress, burnout, and the emotional toll of constant striving, Sandy discovered the profound healing power of sound therapy. What began as a personal journey of renewal quickly blossomed into a calling to help others reconnect with themselves and rediscover their inner calm.


The Sound Sanctuary was born from that transformation—a place where science meets spirit, and where success is redefined by serenity, purpose, and wholeness. Sandy now leads others to reclaim their light, offering sound journeys, energy work, and soulful programs that activate deep healing from within.

Need more information about Sandy?  Book your healing appointment today at 636-323-5022 to get started!