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Security Instrument provides home security & automation systems, installation and support in Delaware, Pennsylvania, Maryland and New Jersey.
Wilmington, DE Office
309 West Newport Pike
Wilmington, DE 19804
Milton, DE Office
28340 Lewes Georgetown Hwy.
Milton, DE 19968
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.