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Thank you for contacting us! We will respond to your questions as soon as possible. In the meantime, we encourage you to:

Our Promise to You

We promise to provide the highest level of service to each and every customer by operating an integrity-based team of employees that is able to earn the respect and business from this region and community.

Brendan Armstrong Sr., the founder and president of Trinity, attributes the company’s success to his three core business beliefs: deliver exceptional service to (and develop long-term relationships with) each customer, take exceptional care and pay close attention to employees’ needs, and always do the right thing. We may not be biggest company in the business, but we are the leading company in providing value and first-rate service to this area.


See What People Are Saying
Reviews From Real Customers in MD, VA & DC

“During our installation process, the technicians were knowledgeable and explained every step. The best part is the pricing for the quality of service. The value…”

“I would like to commend the Trinity reps for their outstanding customer service. In every interaction they demonstrated a keen knowledge and were able to…”

“Trinity is the very best out there. Anytime that I have a question, issue or concern, they jump right in and take care of it.…”

“Trinity Wiring and Security Solutions has given my family peace of mind. We always know that our house is secure and the system is easy…”

“Liam helped us from start to finish on our security system needs. He was knowledgeable, understanding and helpful throughout the process. He catered to our…”

“Trinity was also able to put a surround sound system in our family room. Thanks to Trinity, this room in our home is now better…”

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Why Trinity Wiring & Security Solutions?
The Best Choice for Audio/Visual & Access Control Security Solutions

Trinity Wiring & Security Solutions is your all-in-one security solution. Integrate audio/visual features and enjoy custom automation for convenience, enhanced protection, and energy-saving purposes.

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