Welcome to FOSS, where excellence is not just an expectation, but our standard. We're passionate about delivering top-tier products and services customized to meet your unique goals. Our collaborative journey starts with a deep dive into your needs, leading us through seamless sales, installation, and ongoing support. With a foundation built on respect and integrity, we handle every interaction with the utmost professionalism. When you choose FOSS, you're not just investing in protection – you're gaining a partner to secure what matters most for you now and in the future.

Protect What Matters with Foss Security

Looking for trusted Security System Supplier services in Sioux Falls? Foss Security is your local expert for alarms, surveillance, access control, and more. Whether you're securing your home or business, get help from pros who know how to keep you safe. Fast. Simple. No pressure.

Fast. Easy. Hassle-Free.

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Expert Security Tips & Insights

Discover guides and advice from industry pros
to help you secure your home, business, and peace of mind.

Smart Locks: The Good, the Bad, and the Ugly

June 6th, 2025

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Protect What Matters with Foss Security

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