Curb appeal is a keypart of a home's value in today's competitive real estate markets. Entry systems are one of the most cost-effective ways to add value to the exterior of a home. The home entry door is the beginning of your journey through a house, and it's the first part of the house that anyone going through the house looks at closely. Ideally it should emphasize the character of the house. For new and old homes alike, the front door is a key focal point.