A sealing system for sealing a valve component in a radially expanded deployed configuration includes a valve component and an expandable sealing component. The valve component includes a frame and a prosthetic valve coupled to the frame. The frame defines a central passage with the prosthetic valve disposed therein. The expandable sealing component includes a sealing frame and a skirt coupled to the sealing frame. The expandable sealing component is configured to be inserted in a compressed configuration within the central passage of the valve component with the valve component in the radially expanded deployed configuration. The expandable sealing component is configured to be radially expanded partially within the valve component, with a first portion disposed within the valve component and a second portion disposed longitudinally outside the valve component. The sealing frame may include a first ring and a second ring.