Monitored vs unmonitored alarm systems: what's the actual difference?
5 min read · Written by Mustafa Husain, Founder of SAS4HomeIT · Published October 10, 2026
An unmonitored system alerts you directly through a phone notification and an on-site siren. A monitored system additionally routes alerts to a monitoring service that can act on your behalf, typically for a recurring fee.
How unmonitored systems actually work
A mobile app alert fires the moment a sensor trips, along with a siren at the property. The system is entirely dependent on you, or someone you designate, actually seeing and acting on that alert.
How monitored systems add a layer
A monitoring service receives the alert too and can follow a response process, attempting to contact you and escalating further, even if you don't see your phone right away.
Who unmonitored suits
Households confident that they, or a family member, will reliably see and respond to a phone alert quickly are generally well served by an unmonitored system.
Who monitored suits
Households often away for extended periods, or anyone wanting a safety net beyond relying entirely on someone checking their phone, are the clearest fit for a monitored system.
What we set up as standard
Mobile alerts come standard on every install, and we can discuss monitored options for anyone wanting that additional layer, rather than assuming one is automatically better for every household.
Frequently asked questions
Is a monitored alarm system worth the extra cost?
It depends on how confident you are that phone alerts alone will be seen and acted on quickly. Frequent travelers often value the extra layer a monitoring service adds.
Do I get phone alerts either way?
Yes, mobile alerts are standard on every install regardless of whether a monitoring service is added on top.
Can I switch from unmonitored to monitored later?
Often yes, depending on the system, which is worth discussing at install time if it's a possibility you want to keep open.