Welcome, ACI Customers

Alarm Center (DBA Custom Security Systems, Ace Fire & Security Systems, Alarm Guard Security Systems, and Capital Alarm) is now part of Securitas Technology. We are committed to delivering proven and innovative security solutions that protect what matters most to you.

If your business is moving, under new ownership, or you need to make a change to your services with Securitas Technology, please use our Change In Service form.

To pay your bill, visit our Online Billing service. If you have a question regarding your invoice, please visit our Invoice Inquiry page.

To learn more about one of our other security businesses including Securitas Healthcare, Sonitrol, 3xLogic, and Pacom please visit our Security Businesses Page. Thank you for being a Securitas Technology customer.