Choosing a home security system can feel complicated. Homeowners can now choose from traditional alarms, wireless security systems, CCTV cameras, smartphone-connected devices, professional monitoring and integrated security solutions.
The best home security system is not necessarily the one with the longest list of features. It is the system that provides appropriate protection for your property, lifestyle and level of risk.
This guide explains the main home security options available, how they work together and what Australian homeowners should consider when deciding how to protect their property.
What Should a Home Security System Protect?
Before comparing equipment, start by considering what you actually need to protect.
A residential security assessment should consider areas such as:
- front and rear entrances
- ground-floor windows
- sliding and balcony doors
- garages and internal garage access
- driveways
- side access
- external sheds and storage areas
- areas containing valuable property
- parts of the home that are difficult to see from the street
The right system should address these vulnerabilities rather than relying on a standard package that may not suit the layout of your home.
What Are the Main Types of Home Security Systems?
Residential security can include several different technologies. These systems perform different functions, and many homes benefit from combining them.
Home Alarm Systems
An alarm system uses detectors and sensors to identify potential unauthorised entry or movement.
A typical system may include:
- motion detectors
- door and window contacts
- control panels or keypads
- internal and external sirens
- communication equipment
- smartphone connectivity
For a more detailed explanation of choosing detectors, wired and wireless systems and monitoring options, see our guide to electronic security solutions.
CCTV Security Systems
CCTV provides visual surveillance around the property and can complement an alarm system.
Residential cameras may be positioned to monitor appropriate areas such as:
- front doors
- driveways
- side access
- rear yards
- garages
- external entertaining areas
Modern CCTV systems can provide high-quality recorded footage and, depending on the system, remote access through compatible applications.
Professionally Monitored Alarm Systems
An alarm can make noise and send notifications, but homeowners should also consider what happens after it activates.
Professional alarm monitoring adds another layer by allowing alarm signals to be handled according to an agreed monitoring and response procedure.
This can be particularly valuable when homeowners are asleep, at work, travelling or otherwise unable to respond to a notification themselves.
Smart and Connected Security
Many modern security systems provide smartphone connectivity, allowing authorised users to interact with compatible equipment remotely.
Depending on the system, users may be able to:
- arm and disarm the alarm
- check system status
- receive notifications
- view compatible cameras
- review selected security events
- manage different areas of the property
These features can make home security easier to manage, particularly for people who spend significant time away from their property.
Wired vs Wireless Home Security Systems
One of the most common questions when choosing an alarm is whether to install a wired or wireless system.
Wired Security Systems
Wired alarm systems use physical cabling between compatible devices and the alarm control equipment.
They can be well suited to:
- new homes
- major renovations
- properties with existing security cabling
- homes where permanent infrastructure is preferred
Wireless Security Systems
Wireless systems use radio communication between compatible security devices.
They can be particularly useful where installing new cabling would be difficult or disruptive.
Wireless technology can also make it easier to add compatible devices as security requirements change.
Hybrid Security Systems
Homeowners do not necessarily have to choose entirely wired or entirely wireless.
Hybrid systems can combine both technologies, which may be useful when upgrading an existing alarm while retaining compatible wired devices.
The most appropriate option depends on the construction of the property, existing equipment and future requirements.
Self-Monitoring vs Professional Monitoring
Another major decision is who will deal with an alarm activation.
Self-Monitoring
With a self-monitored system, alerts are generally sent directly to the homeowner or other nominated users.
This provides direct control but also means someone needs to be available to see the notification, assess what is happening and decide what action to take.
Professional Monitoring
Professional monitoring provides an additional layer between the alarm system and the agreed response process.
Where physical attendance is part of that response, residential security patrols can add a visible on-ground layer for homes, strata properties and shared residential areas.
Rather than relying entirely on the homeowner seeing a notification, alarm signals can be handled according to established instructions.
This may be worth considering for households that:
- travel regularly
- have unpredictable working hours
- leave the property unattended for extended periods
- want additional support outside normal hours
Motion Detectors and Internal Security
Motion detectors are one of the most widely used components of residential alarm systems.
They can provide internal detection if someone enters a protected area while the alarm is armed.
Common positions may include:
- hallways
- living rooms
- open-plan areas
- stairways
- rooms containing valuable items
Correct detector placement is important. A professional installer should consider room layout, potential sources of unwanted activation and how occupants use the home.
What If You Have Pets?
Pets need to be considered when designing an alarm system.
Some detectors incorporate technologies or settings intended to reduce activations caused by appropriately sized pets under suitable conditions.
However, there is more to pet-friendly security than choosing a detector labelled as pet tolerant.
Detector height, room layout, furniture, stairs and where the animal can move should all be considered.
Door and Window Security
Rather than waiting for movement to occur inside the property, door and window contacts can detect the opening of selected entry points.
They may be appropriate for:
- front doors
- rear entrances
- internal garage doors
- sliding doors
- selected windows
Combining perimeter detection with internal motion sensors can provide multiple layers of alarm protection.
Security Cameras for the Home
Cameras add something an alarm alone cannot provide: visual information.
If an event occurs, CCTV footage may help homeowners understand what happened and when.
When choosing cameras, consider factors such as:
- camera location
- image quality
- night-time performance
- field of view
- recording capacity
- remote access
- lighting conditions
- network requirements
More cameras do not automatically provide better protection. Strategic placement is generally more useful than simply installing cameras everywhere.
Should You Combine CCTV and an Alarm System?
For many homes, this can provide stronger overall security.
The two technologies perform different functions.
An alarm system provides detection.
CCTV provides visual surveillance and recorded footage.
For example, an alarm may identify an activation around the property while cameras can provide additional visual information about relevant areas.
Combining technologies is one of the foundations of a layered security approach.
What Is Layered Home Security?
Layered security means avoiding dependence on a single security measure.
A residential security strategy could include:
- secure doors and windows
- appropriate external lighting
- alarm detection
- CCTV
- professional alarm monitoring
- secure gates
- garage protection
- good key and access management
If one security measure is bypassed, another layer may still detect or discourage unauthorised activity.
What About Video Doorbells?
Video doorbells can provide additional visibility at one of the most frequently used entry points to a home.
Depending on the device, features may include:
- video viewing
- motion notifications
- two-way communication
- recorded events
- remote access
They can be useful additions to a broader security system but should not necessarily be viewed as a replacement for alarm detection or appropriately positioned CCTV.
Garages, Sheds and External Areas
One of the most common weaknesses in home security planning is focusing exclusively on the main residence.
Garages and sheds may contain vehicles, bicycles, power tools and other valuable belongings.
Consider:
- whether the garage is connected directly to the house
- how garage doors are secured
- whether external buildings need alarm detection
- whether CCTV covers access to these areas
- how gates and side access are secured
Detached structures may require different technology depending on distance, power and communication availability.
Do You Need Smart Home Integration?
Smart features can make security systems easier to operate, but they should not become the main reason for selecting a security system.
Start with security requirements first.
Then consider convenience features such as smartphone control and compatible connected devices.
When comparing systems, ask:
- Which functions can be controlled remotely?
- How are notifications delivered?
- Can multiple authorised users be created?
- What happens if internet connectivity is interrupted?
- Can the system be expanded?
- Which devices are genuinely compatible?
This is more useful than assuming that every security product will work with every smart-home platform.
How Much Does a Home Security System Cost?
There is no single price that accurately represents every home security installation.
Costs depend on factors including:
- property size
- number of detectors
- wired or wireless equipment
- existing cabling
- CCTV requirements
- number and type of cameras
- monitoring requirements
- installation complexity
- additional buildings or external areas
- future expansion requirements
Rather than choosing solely on the initial equipment price, consider the total system and whether it provides appropriate coverage.
DIY or Professionally Installed Home Security?
DIY security products can be suitable for some straightforward applications, particularly where homeowners are comfortable installing and configuring equipment themselves.
Professional installation can provide additional value where the property is larger, the system is more complex or several security technologies need to work together.
A professional installer can consider:
- detector positioning
- camera coverage
- potential CCTV blind spots
- communication requirements
- existing cabling
- alarm zoning
- monitoring configuration
- future expansion
The important comparison is not simply installation cost, but whether the finished system provides the coverage you expect.
Can You Upgrade an Existing Home Security System?
Yes, in many cases an older security system does not need to be completely replaced.
Depending on compatibility and condition, existing cabling, detectors or other equipment may be reusable.
An upgrade could involve:
- replacing an older alarm panel
- adding smartphone connectivity
- installing additional detectors
- adding CCTV
- improving external coverage
- adding monitoring
- replacing outdated or faulty devices
An assessment of the existing equipment is the best starting point before deciding what should be retained or replaced.
Home Security System Maintenance
Security equipment should not be installed and then forgotten.
Over time, batteries can deteriorate, property layouts can change and equipment may develop faults.
Homeowners should pay attention to:
- low-battery warnings
- system fault messages
- damaged detectors
- camera image quality
- incorrect date and time settings
- changes to Wi-Fi or network equipment
- new renovations or extensions
- areas no longer adequately covered
Security requirements should also be reviewed after significant changes to the home.
How to Compare Home Security Systems
Rather than comparing systems based only on brand or price, ask the same questions of every option.
- What areas of my home does this system protect?
- What happens when an alarm activates?
- Can I access the system remotely?
- Does it support professional monitoring?
- Can CCTV be integrated?
- Is the system suitable for pets?
- Can it be expanded later?
- What happens during a power or communication interruption?
- Is ongoing technical support available?
- Can existing equipment be incorporated?
These questions make it much easier to compare the practical value of different systems.
What Is the Best Home Security System?
There is no single security system that is best for every Australian home.
A small apartment may only require a straightforward alarm and a small number of carefully selected devices.
A larger home may benefit from a combination of:
- door and window detection
- internal motion detection
- CCTV
- garage protection
- external security
- smartphone access
- professional monitoring
The best system is the one designed around the property’s actual vulnerabilities and the homeowner’s preferred way of managing security.
Choosing Home Security with Partisan Protective Services
Home security works best when the different components are considered together.
Partisan Protective Services provides electronic security, CCTV and alarm monitoring solutions that can be tailored to individual properties and security requirements.
Whether you are replacing an older alarm, adding cameras or looking for a more integrated home security solution, start by identifying where your property is vulnerable and what you want to happen when a security event occurs.
Contact Partisan Protective Services to discuss security options for your home.
