Void detection under slabs, roads and parking lots

Sinking slabs and depressions in parking lots often mean voids underneath. I locate voids using GPR and microgravity in Michigan and the Great Lakes region, so repairs can target the right spots. - GPR grid scanning - Microgravity survey for deeper voids - Void maps with depth estimates - Recommendations for drilling and grouting Works well before slab jacking or pavement repairs.