Cal-Pac Roofing, a local roofing company based in San Mateo, offers installation of a full line of roofing products. Since 1978, Cal-Pac has installed all styles such as shake, shingle, tile, low slope and flat roofs. Cal-Pac utilizes only premium products that are fully warranted. Rain Gutter installation is also available. Visit the custom showroom in San Mateo on the El Camino and review the many available types of roofing available for residential and commercial customers.