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About Us

Residential & Commercial Security Systems

Trinity Wiring & Security Solutions LogoSince our founding in 2001, Trinity Wiring & Security Solutions has remained focused on providing exceptional customer service while exceeding our clients’ needs in a timely and professional manner. Trinity offers a wide array of services in the areas of video surveillance, access control, security monitoring, low-voltage wiring, audio-visual solutions, networking, wellness, and more. Trinity’s founding principles were tailored to provide customer service excellence, while our team develops long-term relationships and strives to “do the right thing” every step of the way. 

After expanding into residential and commercial security and monitoring services, Trinity has had the pleasure of providing peace of mind to thousands of families and organizations throughout the Mid-Atlantic Region. Rated as one of SDM Magazine’s Top-100 Security Companies in the United States, as well as one of CE Pro’s Top-25 Integrators in the United States, Trinity’s core objective of satisfying our customers has remained unchanged. With multiple 5-Diamond Award Winning monitoring facilities nationwide, our customers can feel safe and secure knowing that they are protected 24/7 from the threats of burglary, fire, and emergency disasters. 

It has been an absolute pleasure serving you since 2001, and we look forward to continuing to serve you now and in the future!

Do you need home or business security services in Maryland, Virginia, or Washington, DC? Call ​800-613-1874! 

Our Promise

team photo of Trinity Wiring & Security Solutions

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 Wiring & Security Solutions, 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 the biggest company in the business, but we are the leading company in providing value and first-rate service to this area!

Our Service Areas

Trinity Wiring & Security Solutions is your resource for home and business security needs in Northern Virginia, Maryland, and Washington, DC. We serve the areas of Washington, DC, as well as near Arlington, McLean, Reston, and Alexandria in Virginia, and Bethesda, Potomac, and Silver Spring in Maryland.

Call ​800-613-1874, or schedule a consultation for superior security services!


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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