How to Prepare Your Casper Rental Property for Winter: A Landlord’s Guide Winter in Casper, Wyoming brings freezing temperatures, snow, and ice, making it essential for landlords to prepare rental properties in advance. Proper winterization protects your investment, prevents costly repairs, and ensures tenant safety and comfort throughout the season. Insulate and Seal the Property Check windows, doors, and exterior walls for drafts. Use weather stripping and caulk to seal gap