Fixing height misalignment between concrete subfloor sections before hardwood installation

Homeowners and contractors installing hardwood flooring face costly delays when gypcrete or concrete subfloor slabs have height differences (even small 1/4" gaps), which can cause hardwood buckling, squeaking, and warranty voidance. Current solutions like self-leveling compounds, grinding, or complete slab replacement are expensive, time-consuming, or create dust/mess that damages the project timeline and budget.