Guide

Commercial Alarm System Cost and Monitoring in Ontario: What to Know Before You Buy

Alarm system cost and monitoring explained for Ontario businesses: what is included, what affects the price, and whether professional monitoring is worth it.

November 10, 2026

Illuminated alarm keypad mounted on a wall

Alarm quotes can look very different from each other because they bundle different things. Before comparing prices, it helps to know what an alarm system includes and what the ongoing monitoring really does.

What an alarm system includes

  • A control panel, the brain of the system
  • Door and window contacts and motion detectors
  • A keypad or app for arming and disarming
  • A siren
  • A communicator that sends signals out, often by cellular so it keeps working if the phone line or internet is down
Door and window contactsMotion detectorsKeypad or appControl panelthe brainSirenCommunicatorcellular or IPMonitoring stationcalls you and dispatchesSensors report to the panel; the communicator reports out, even if the phone line or internet is down
How an alarm system works: sensors, a control panel and reporting to a monitoring station.

What affects the price

  • The size of the property and the number of doors, windows and zones
  • Wired or wireless sensors. Wired suits new construction; wireless is quicker in finished homes
  • Extras such as smoke or carbon monoxide detection, glass-break sensors, cameras and smart home links
  • The brand and platform, for example DSC, Honeywell, Paradox or IQ by Johnson Controls
  • Whether the system is monitored, and how

What monitoring actually does

With professional monitoring, an alarm signal goes to a central station. Operators follow your call list and can dispatch emergency services depending on the event. Self-monitoring sends alerts to your phone and leaves you to respond.

Questions worth asking:

  • Is the monitoring station ULC-listed? This is a Canadian standard that many insurers recognize
  • What is the contract term, and what happens if you move?
  • How does the system report if the internet goes down?
  • Does your home insurer offer a discount for a monitored system? Ask your insurer directly

Is monitoring worth it?

If you are away often, run a business, or want a response when you cannot check your phone, monitoring adds real value. If you are home most of the time and comfortable responding yourself, self-monitoring may be enough. Neither choice is wrong; it depends on how you live and how quickly you need help.

See our alarm systems page for what we install, or read our guide on wired vs wireless alarm systems.

Planning a project in Newmarket or the Greater Toronto Area? Contact Pitbull Security Solutions or call 647-895-1815 (answered 24/7) for a consultation.

Talk to a real person, any hour.

Tell us about your property and we will recommend a system that fits. Free consultations in the GTA, no pressure. Beyond the GTA a site visit may carry a charge, which we confirm first.

Toll-free: 888-963-5633

Call 24/7: 647-895-1815Toll-free