Use this form to request service or to ask a question of our service department. We will follow up with you to confirm a scheduled date and time if a service call is necessary. If you have an emergency: please call us right away at (800) 244-2261.
Wilmington, DE Office
309 West Newport Pike
Wilmington, DE 19804
Milton, DE Office
28340 Lewes Georgetown Hwy.
Milton, DE 19968
If you are experiencing an emergency, please call 911. Requests from this form will not receive a response until the next business day.
Our automated answering system is as easy as 1-2-3-4 Option 1 – Central Station Option 2 – Customer Service Option 3 – Administrative Services Option 4 – Sales Services
Cancel An Alarm
To cancel an accidental alarm, please deactivate your system and call our Central Station Toll Free at (800) 244-2261, Option 1. Please have your personal pass-code ready so our operator can verify your authorization.
Security Instrument is Delaware’s largest full-service independently-owned security firm with over 75 employees serving thousands of customers throughout Delaware, Pennsylvania, New Jersey and Maryland.