Wood countertops add a natural warmth and comfort to a kitchen. Are they expensive? Yes, depending on the type of wood. But bear in mind that these tops are easily restored, look gorgeous and add value to a home. A sealed wood finish is essentially water-proof and stain-proof and requires little or no maintenance. Whether the effect is accomplished with varnish, polyurethane, or sealer, these countertops are not intended as cutting boards. The combination of wood and stone tops have also become increasingly popular.