Home Security System Cost Calculator
Estimate the cost of a home security system in Australia. Choose the home size, the components you want and whether you add monitoring.
Your home security system details
Your estimate sits within the typical range.
DIY camera kits are cheap but a professionally installed and monitored system is more reliable and can reduce home insurance premiums, ask your insurer.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- An alarm plus a couple of visible cameras deters most opportunistic break-ins for far less than a full smart system.
- Self-monitored (app alerts to your phone) avoids the ongoing monitoring fee.
How we estimate this
A home security system in Australia typically costs $500 to $6,000 installed in 2026 depending on home size and components. An alarm only is cheapest; a full smart system with cameras, sensors and monitoring across a large home reaches the top.
Pricing reviewed: October 2026.
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Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding home security system costs in Australia
A home security system in Australia typically costs $500 to $6,000 installed in 2026 depending on home size and components. An alarm only is cheapest; a full smart system with cameras, sensors and monitoring across a large home reaches the top.
Beyond install, back-to-base monitoring carries a monthly fee. A professionally installed, monitored system is more reliable than a DIY kit and can reduce home insurance premiums.
Frequently asked questions
How much does a home security system cost in Australia?
Typically $500 to $6,000 installed in 2026 depending on home size and components. An alarm only is cheapest; a full monitored smart system costs the most.
Is back-to-base monitoring worth it?
It means a monitoring centre responds to alarms, which some people value and some insurers reward. It adds a monthly fee on top of install, so weigh that against self-monitoring via an app.
Are you a trades business?
Everyone on this page is working out what home security system costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.