Subsidence cracks almost always get progressively worse over time if the underlying geological trigger or soil instability is left unresolved. As seasonal weather cycles continue to shrink or expand the supporting ground, or as subterranean water leaks continue to erode foundational soil support, the physical stress on load-bearing masonry increases. Cracks that start out thin and hairline will steadily widen, lengthen, and shift diagonally, signaling ongoing structural movement that requires urgent professional geotechnical and structural engineering intervention.
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