Driveways, Ramps, Sidewalks, Stairs | MG-KRETE Perry Hill School Stairs Repair June 21, 2021 by Administrator Before – The contract originally called for removal and replacement of the steps. A tunnel was discovered under the steps, and you can see concrete was used to fill the hole created.The architect recommended MG-Krete™.The steel bullnoses were removed, and the steps were brushed clean, swept and MG-Krete installed.MG-Krete™ was the repair product of choice.