- Welcome to Grattan Construction This page is best supported by Netscape 4.7X or Internet Explorer 5.0 Beta. Please use either of these to enhance your viewing of this site. At Grattan Construction we provide quality construction for the Southern California area. Pride and Craftmanship are an ailing trait in today's world of construction, but we give every job our personal attention as if it was ...www.apc.net/gratcon