Step 1: Through our equipment, we will figure out the leakage source. And begin clearing out the stagnated water from the basement. Step 2: Once the water is safely drained out, we will use our special Polyurethane chemical to fill the hole/void that was causing the leakage. Step 3: We will look out for other holes/voids or weak areas where more Polyurethane may be injected to completely waterproof the entire basement area. We will ensure we completely check the structure’s foundation for a foolproof waterproofing experience. STL Polyjack is the most economical choice to get your basement waterproofed in St.Louis.