Get a bucket of water and 1/4 cup dawn and some about 1/4 cup hot sauce.......mix outside...................spread it out over your porch....use a broom and spread it around....spray any steps with this.....................they will go somewhere else................keeps your animals off the porch until it dries...............fall is almost here they are looking for a place to live..................keep them on the run...............nothing likes the hot sauce....this is a stronger dose because its a porch............they also will not like 6% vinegar............you did not say wood or cement.........