Tell Your Story

Customer reviews and referrals are the life blood of our business. We appreciate your time in telling others about your experience with SI.

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Dear valued customer,

I want to thank you for being such an important part of Security Instrument. We appreciate the support and trust you have given us in being your electronic security provider. Our business, as most do, constantly involves keeping up with technology. To help keep our company in the forefront I ask that you take a moment to write us a brief review – provided below is a link to do so. Your feedback is really important to us.

Thank you for your time and continued business. Please do not hesitate to contact me with any questions. I look forward to hearing from you.

Sincerely,

Art Mattei
CEO
Security Instrument

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“I like working with Security Instruments because it is easy to make an appointment, they show up on time with a text/email reminder noting who the technician is. The technicians are very competent and handle the work in an efficient manner. I continue to have nothing but solid service from SI and likewise when there is an alarm issue, they are responsive.”

“Recently had my home security system installed in my home. The technician was great and on time and professional. The biggest take away from this experience was Megan from the office. She answered all my questions and made me feel like i was making the right choice by choosing Security Instruments. I would highly recommend this company!!”

“I finally updated my security system. The tech, Jeremiah, came in very professional (introduced himself, removed his shoes and set up a workstation to perform his installation), installed my system, cleaned up and went over everything with me. I had other quotes from other companies which were much lower on pricing for the new system, but was not able to deliver the immigrated system I need it with my present security system. If you need a new security system or company, take a look at Security Instruments. They did a good job by me.”

About Security Instrument

The power of personalized service. Protecting what matters since 1960.

History

Founded in 1960, Security Instrument Corporation, a privately held U.S. Corporation, provides electronic security and life safety detection  and associated monitoring and support services.

Services

Security Instrument offers an full line of services from professionally engineered system designs and turnkey installation services, to 24 hour system monitoring.

Service Area

Security Instrument is Delaware’s largest full-service independently-owned security company, serving thousands of customers throughout Delaware, MD, NJ & PA.