Certain shrubs and other plants provide the perfect hiding spot for a neighborhood snake. Keeping your grass mowed is a good way to prevent snakes from slithering around your yard. Shrubs and packed gardens with thick plants will also attract snakes. If you are very concerned about a potential snake problem, remove or thin these plants out. If you want to keep these plants, however, consider transplanting them to the far side of your yard, away from the foundation of your house.

If you have a rodent or large insect problem, you will want to address this at the same time.  Remember, that rodents and large insects are a favorite menu item for snakes.

Finally, make sure there are no holes in the exterior walls of your house.