Pieces of art such as paintings are made to last for decades and even centuries. Over time, these pieces can be damaged due to the environment or accidents. Restoring these pieces to their original look requires experts in history, science and art. Restoration is a long process, and experts in these fields are expensive. Not all private art owners or galleries have a staff of experts available for this service. Restoration businesses are in place to restore works of art for those with a need for their expertise. They employ the experts and the tools necessary to do the work.