Sunken foundations in Northeast Oklahoma homes require underpinning to re-level and stabilize structures. The two primary methods are helical pier underpinning and steel push pier systems. Helical piers—screw-like steel shafts—are rotated into the ground until reaching competent soil layers, then hydraulically jacked to lift settled footings. Steel push piers are driven vertically beside the foundation via hydraulic rams, transferring load downward before jacking the foundation. Both methods minimize excavation and accommodate tight access in crawl spaces. After leveling, piers are permanently attached to footing brackets. These underpinning solutions resist future soil expansion and contraction cycles in Broken Arrow’s clay soils, restoring home stability and protecting against further settlement with engineered precision.