5800 Overseas Hwy, Marathon, FL 33050
Security System Supplier
Barnes Alarm Systems is your one destination for all Security and Fire needs. Serving all of the Florida Keys from Key West to Key Largo... View
Whether you're installing a new alarm system, upgrading your surveillance, or adding extra protection for your business, we connect you with trusted security professionals who get the job done right.
Search by service type, compare expert profiles, and request a free, no-obligation estimate—everything you need to feel confident about your safety in one place.
Fast. Simple. No pressure.
Discover guides and advice from industry pros
to help you secure your home, business, and peace of mind.
