Alarm Services locations near Ontario, CA

Showing 1–10 of 10 results

This page indexes 10 alarm services listings for Ontario, CA, covering 3 ZIP codes. Details on this page were last refreshed Sep 2026.

Advanced Direct Security- ADT Authorized Company

📍 Serving Your Area, Ontario, CA, 91761

📞 213-787-2991

🌐 www.alarm-home.com

ADT Monitored Home Security is America's number one home security company, with over 5 million customers and 130 years of experience. ADT has led the way in home security technology and offers state of the art monitoring from four interconnected ADT Monitoring Centers. ADT customers receive 24 hour a day, 7 days a week, 365 days a year customer service. Call now for ADT offers from Advanced Direct Security- ADT Authorized Company.

ADT Security Service, Inc.

📍 845 S Milliken Ave Ste A, ONTARIO, CA, 91761

📞 909-457-8470

Bay Alarm Company

📍 Serving Your Area, Ontario, CA, 91761

📞 909-509-7175

🌐 bayalarm.com

ADT Security Services, Inc.

📍 845 S Milliken Ave Ste A, Ontario, CA, 91761

📞 909-259-9350

Find home security and home surveillance products from ADT.

JG Security Cameras

📍 618 E Oak Hill St, Ontario, CA, 91761

📞 323-451-1178

JG Security

📍 618 E Oak Hill St, Ontario, CA, 91761

📞 949-743-9797

ADT Security Services

📍 Serving Your Area, Ontario, CA, 91761

📞 866-816-9624

Updated Aug 2026

South Coast Fire Equipment Inc

📍 2020 S Baker Ave, Ontario, CA, 91761

📞 909-673-9900

🌐 southcoastfire.net

South Coast Fire Equipment Inc is a fire protection systems and service provider located in Ontario, California. It has an active online presence as of 2026, indicating ongoing engagement with the community. Those in need of fire safety solutions can find this business serving the Ontario area.

Updated Sep 2026

Advanco Fire Protection

📍 615 S Oaks Ave, Ontario, CA, 91762

📞 909-460-2510

🌐 advancofire.com

Advanco Fire Protection is a fire protection company located in Ontario, California, specializing in sprinkler alarm systems. They offer a range of services including design, installation, maintenance, repairs, testing, and inspections for both commercial and industrial properties. Additionally, they provide 24-hour emergency service and have expertise in tenant improvements and underground repair. Their product offerings include standpipes and fire pumps, catering to new construction projects as well.

Alarm Sales & Services

📍 Serving Your Area, Ontario, CA, 91710

📞 213-787-2991