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Security Alarm Installation

Cost guide — Security Alarm Installation · As of July 2026

Security Alarm Installation Cost in Melbourne.

Security alarm pricing depends on number of sensors, communication method (monitored vs self-monitored), and whether you're integrating with cameras or smart home. Below are typical ranges for residential and small-business installs.

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01 / Service

Security Alarm Installation

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  • Median$3,900
  • Range$1,200–$8,500
  • Dataset18 jobs
  • As ofJuly 2026
  • Taxex GST

02Pricing tiers

Where your job lands.

Three bands cover the full spread we see. Most jobs land in the typical band — bigger or smaller jobs sit either side.

01

Lower band

$1,200

Smaller scope, easier access, fewer line items.

02

Typical

$3,900

Middle 50% of completed jobs — most quotes land here.

03

Upper band

$8,500

Bigger scope or stacked complications.

03What drives the price

Where the spread comes from.

Each entry below moves the median up or down. Your job lands somewhere on the curve based on how these stack.

01

Number of sensors

A 4-sensor residential system is the baseline. 8–12 sensor coverage for larger homes or small-business sites adds proportional cost.

02

Wired vs wireless

Wired sensors (during a renovation or new build) are cheaper long-term, with no battery replacements and better reliability. Wireless suits retrofits where running cable is invasive.

03

Monitoring service

Self-monitoring (push notifications to your phone) is free ongoing. Professional 24/7 monitoring is around $25–$45/month. It adds to total cost of ownership but escalates faster in real incidents.

04

Integration with CCTV / smart home

Standalone alarm is cheapest. Integrating with CCTV (see our [CCTV cost guide](/services/cctv-installation/cost)), smart locks, or home automation adds 15–25%.

04In the median price

7 line items.

What's covered when we quote a typical job in this band.

INCLUDED
  1. +01Site assessment to plan sensor coverage: PIRs, reed switches, glass-break detectors
  2. +02Hardwired sensor installation where practical (more reliable than wireless)
  3. +03Keypad and siren installation with tamper protection
  4. +04Smartphone control and notifications via a secure app
  5. +05Optional back-to-base monitoring through a 24/7 Australian-based monitoring centre
  6. +06Integration with existing CCTV for event-triggered recording
  7. +07Handover training and written user guide

A well-designed alarm system catches intruders early enough that response makes a difference, doesn't false-trigger every time the cat moves, and is something you'll actually arm before bed. The price band above reflects what most homes and small-business sites pay for a properly installed system across Melbourne's east, wired or wireless, monitored or self-monitored.

How sensor placement decides the price

Half the value of an alarm is in where the sensors go. Perimeter coverage (door reeds, glass-break sensors at vulnerable windows) is more useful than a single hallway PIR for early detection. Reed-switched garages and side gates catch the vast majority of opportunistic break-ins before anyone gets indoors. We walk the property at the quote and design coverage around the actual entry routes, not a fixed 4-sensor or 8-sensor package.

What's included in a Millar Electrics quote

A free site visit, sensor placement walkthrough, a written itemised quote within one business day, and a fixed price with no surprises after acceptance. Supply and installation, panel programming, end-user training on arming, partial-arm modes and bypass codes, and integration with your phone for self-monitored alerts. Where 24/7 monitoring is selected, the monitoring contract is direct between you and the monitoring centre. We don't mark it up.

Want coverage designed around your property rather than a fixed package? Book a free security alarm quote. We walk the place, plan the sensors, and price it in writing.

05FAQ

Common questions about cost.

06Compare

How this stacks up.

Other guides in the same audience, ordered by median.

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