The Piano Factory - Steinway Pianos NYC are America’s Largest Independent Steinway Rebuilder. We have rebuilt thousands of Steinway pianos. Our modernized 15,000 sq. ft. factory of Steinway pianos in NYC is home to our expert craftsmen who apply the most advanced techniques and materials to their trade. The Golden Era Steinway is unrivaled for its magical Steinway tone but only a truly masterful piano restoration can fully recreate that magic.