📍 1150 N Mountain Ave, Upland, CA, 91786
📞 909-608-7233
📍 939 W 9th St, Upland, CA, 91786
📞 909-931-2540
📍 Serving Your Area, Upland, CA, 91784
📞 909-421-9754
📍 Serving Your Area, Upland, CA, 91784
📞 909-256-0193
📍 Serving Your Area, Upland, CA, 91784
📞 909-920-9074
📍 Serving Your Area, Upland, CA, 91784
📞 909-660-3202
📍 8840 Flower Rd Ste 110, Rancho Cucamonga, CA, 91730
📞 909-481-7631
📍 956 Hollowell St, Ontario, CA, 91762
📞 909-391-2713
Updated Oct 2026
📍 8757 Lanyard Ct Ste 100, Rancho Cucamonga, CA, 91730
📞 909-946-1140
🌐 unitedsecurityinc.com
United Security Systems is a security systems dealer located in Rancho Cucamonga, California. They offer a range of services including burglar and fire alarms, custom and basic security systems for residential and commercial properties, as well as C.C.T.V. and access control systems. The company also provides 24-hour U.L. approved monitoring and can assist with monitoring or upgrading existing systems.
📍 9375 Feron Blvd Ste E, Rancho Cucamonga, CA, 91730
📞 909-945-9777