The most effective way to keep a raccoon out of your house is to use preventative exclusion services. To avoid future raccoon entry, all entry points must be sealed after the raccoon has been removed. Making sure you don't establish a raccoon haven outside your home can also help you avoid attracting raccoons. However, after dealing with a raccoon invasion, habitat modification will become important for prevention. Fear-inducing gadgets only work for a short time, and there are no toxicants that are regulated for raccoons.