Skunks don't smell. What they spray smells. What makes them spray? An opossum. He goes in other animals holes and a fight between the two results, causing the skunk to spray. Whoever stands their ground the longest will stay in the hole. The smell won't make them leave.
We mount our traps directly to the animal's hole to ensure a quick animal removal and we won't trap any non-target animals. This will cost you less. To prevent this problem in the future we recommend installing our heavy gauge wire in the ground around the concrete porches and decks.