Contact Notice: JavaScript is required for this content. Central Valley Alarm Modesto, CA 95354 209-408-0306 Opening Hours Monday 10:00 am – 8:00 pm Tuesday 10:00 am – 8:00 pm Wednesday 10:00 am – 8:00 pm Thursday 10:00 am – 8:00 pm Friday 10:00 am – 8:00 pm Saturday 10:00 am – 8:00 pm Sunday Closed