One of the primary causes of driveway approach failure in established Austin neighborhoods is the growth of aggressive underground tree root networks from nearby oaks and elms that forcefully lift and tilt heavy concrete slabs. Our field crews address this issue with technical precision. We break away the damaged concrete using specialized machinery, carefully prune or bridge around the problematic root structures to protect the tree's health, excavate down to stable ground, and lay a thick course of aggregate road base to cushion the new concrete from future movement.