As a buyer, you are entitled to know exactly what you're purchasing. Don't take anything for granted, not even what you see or what the listing agent tells you. A professional home inspection is something you MUST do, whether you are a buying an existing home or a new one. In addition, look at the foundation, exposed pipes, and condition of the sheet rock - in the bathrooms, inside of the exterior or sheer walls, ceilings, and ground floor.