Small Business Alarm Systems: What You Actually Need (And What You Don't)

If you run a small retail store, office, or restaurant, the alarm industry can feel overwhelming. Everyone's trying to sell you the most expensive package. Here's what you actually need based on your space and risk.

The Basics Every Small Business Needs

Door/window contacts on every exterior opening. These detect when a door or window is opened while armed. A motion sensor covering the main interior area as a backup. A monitored alarm panel connected to a ULC-certified monitoring centre that dispatches police and calls your emergency contacts. A loud siren — both interior and exterior — because noise is the fastest deterrent.

What You Probably Don't Need

Smart home integration, video doorbells, voice assistants — these are residential features repackaged as commercial. Your business alarm needs to do one thing reliably: detect an intrusion and get police there fast. Skip the bells and whistles.

The Monitoring Question

An unmonitored alarm makes noise. A monitored alarm makes phone calls. The monthly cost difference is $25-50. For that price, you get 24/7 professional monitoring, verified dispatch (reducing false alarm fines), and a documented response chain that satisfies your insurance provider. There's no scenario where unmonitored makes sense for a business.

Cost Expectations

A properly installed, monitored alarm system for a small commercial space (1,000-3,000 sq ft): $1,500-3,000 for equipment and installation, plus $30-50/month for monitoring. That's less than a single break-in claim deductible, and your insurance savings (10-20%) often cover the monitoring cost entirely.