About Us
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.
Locations
Wilmington, DE
309 West Newport Pike
Wilmington, DE 19804
(302) 633-5621
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Milton, DE
28340 Lewes Georgetown Hwy.
Milton, DE 19968
(302) 645-2212
Company News
- Top 10 Summer Security System Tips: Keeping Your Delaware Home SafeJuly 10, 2024 - 1:31 am
- Delaware Restaurant Security Vital Tips for Safety and EfficiencyJuly 1, 2024 - 9:53 pm
- How to Choose The Best Alarm Company: Pros and Cons of Local vs National CompaniesMay 25, 2024 - 8:10 pm