24/7 Customer Support. At StorQuest Self Storage in Modesto, CA we offer a variety of self storage units ranging from 5’X10’ to 10’X30’. We offer gate access seven days a week, as well as wide driveways to allow for easy access to your unit. Are you curious about our security measures? With 24-hour digital surveillance, a controlled-access gate, and a well-lit facility, there isn’t anything to worry about!