Profile: Ohio Basement Systems is a basement waterproofing and crawl space repair contractor. WaterGuard is our drainage system which is the ideal solution for most basement waterproofing applications. It includes wall flange with 3/8 inches opening to collect water from walls. There is no gap on the basement floor to let humidity into the space or to collect debris. Our helical piers are usually installed with small construction equipment, but can be installed with hand equipment in tight spaces. Helical piers are mechanically screwed into the soil to assure permanent stabilization.