Soils in downtown Allentown near the Lehigh River are often sandy and well-drained, while neighborhoods like South Allentown sit on stiff glacial till and residual clay. That contrast creates real risks for differential settlement. A house that straddles both soil types can crack within months. We conduct a full differential settlement analysis in Allentown to map exactly where movement will occur. This service is essential before slab-on-grade or shallow foundation work. We combine field borings with lab consolidation tests to predict how much each soil layer will compress under load. The result is a clear settlement profile for your specific lot.
A 1-inch differential across a 40-foot slab can crack drywall and jam doors. Our analysis predicts that movement before concrete is poured.