Ameristar Windows serves Riverside, Orange, San Bernardino, San Diego and Los Angeles counties, and the following areas: Riverside, Moreno Valley, Rancho Cucamonga, Grand Terrace, Ontario, Corona, Upland, Murrieta, Temecula, Menifee, Bonsall, Fallbrook, Escondido, Rancho Bernardo, Anaheim Hills, Yorba Linda, Fontana, Winchester, Redlands, Highland, Hemet, Yucaipa, Chino, Chino Hills, Long Beach, Cerritos, Claremont, Glendora, Pomona and all the surrounding areas.