In many cases, waterproof flooring can be installed over existing floors, but proper assessment is crucial to ensure long-term success. The existing subfloor must be level, structurally sound, and free from moisture issues that could compromise the new installation.Luxury vinyl plank flooring often works well as a floating floor system over existing hardwood, tile, or laminate. However, carpet and damaged flooring typically need removal to prevent moisture trapping and ensure proper adhesion. Each situation requires professional evaluation to determine the best approach.For Shelter Island Heights homes, moisture testing becomes especially important before installation. Any existing moisture problems must be addressed first, or even the best waterproof flooring won’t perform as expected. Professional installers know how to identify and resolve these issues before your new floors go down.