Homeowners in Arlington trust Dominion Security Systems because we treat every property as unique. We don't sell pre-packaged systems off a shelf. Every installation begins with a thorough walkthrough of your home and ends with a system engineered specifically around how you live.
As a family-owned company based in nearby Alexandria, we've served Arlington County for over 45 years. When you call us, you reach a real person — not an overseas call center. Our licensed technicians handle every installation personally, and we back our work with 24/7 professional monitoring and no long-term contracts.
Services in Arlington
Complete Home Protection & Comfort
Custom-designed systems, professionally installed by our local team.
Home Security Systems
Custom-designed intrusion detection, sensors, cameras, and smart-home integration for homes in Arlington.
Fire Protection
Monitored smoke and heat detection with automatic first-responder dispatch for Arlington residences.
Custom Sound Systems
Authorized Sonos dealer providing whole-home audio and home theater installation in Arlington.
Professional Monitoring
24/7 UL-listed central station monitoring for homes throughout Arlington and Arlington County.
Why Choose Us
Why Arlington Homeowners Choose Dominion
Local Since 1979
We've protected Northern Virginia families for over 45 years — long before most national competitors existed.
Family-Owned
No corporate ownership, no call centers. You reach real people in Alexandria who know your home.
Custom-Designed Systems
Every installation in Arlington is tailored to your home's layout and your family's lifestyle — never pulled from a catalog.
No Long-Term Contracts
We earn your business every month through service, not fine print.
Frequently Asked Questions
Arlington Security FAQs
Nearby Service Areas
We also serve these communities near Arlington: