Homeowners in Great Falls 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 Fairfax 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 Great Falls
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 Great Falls.
Fire Protection
Monitored smoke and heat detection with automatic first-responder dispatch for Great Falls residences.
Custom Sound Systems
Authorized Sonos dealer providing whole-home audio and home theater installation in Great Falls.
Professional Monitoring
24/7 UL-listed central station monitoring for homes throughout Great Falls and Fairfax County.
Why Choose Us
Why Great Falls 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 Great Falls 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
Great Falls Security FAQs
Nearby Service Areas
We also serve these communities near Great Falls: