Smoke alarms are a legal requirement in Victoria and are crucial to household fire safety. They provide early warning during a fire, giving occupants more time to escape. Homeowners must install alarms that comply with Australian Standard AS 3786, and landlords are legally required to maintain them in rental properties.
For expert support, Ready Set Trades provides licensed smoke detector services, including installation, testing, and replacement.
Hardwired Smoke Alarms: Pros and Cons
Hardwired alarms are connected directly to a home's electrical supply, with a backup battery in case of power failure.
Pros: continuous power supply makes them highly reliable; they are required by Victorian building law in homes built or renovated after 1 August 1997; they can be interconnected across multiple rooms, which is mandatory for post-2014 builds; and there is a lower risk of them being disabled due to a flat or missing battery.
Cons: installation must be carried out by a licensed electrician; there is a higher upfront cost compared to battery models; and they are less flexible in placement since they require wiring.
Battery Smoke Alarms: Pros and Cons
Battery-powered alarms run independently, either on a 9V battery or a sealed 10-year lithium battery.
Pros: affordable and easy to install; suitable for older homes not legally required to have hardwired alarms; and they can be installed in areas where hardwiring is not practical.
Cons: standard 9V batteries need to be replaced annually; there is a risk of alarms being disabled if batteries are removed or flat; and they are not compliant for homes built after 1997 where hardwired alarms are required.
Which Smoke Alarm is Best for Your Home?
The choice depends on your property's age and compliance requirements:
For ongoing safety, all smoke alarms should be replaced every 10 years, regardless of type. Routine checks by a licensed electrician as part of electrical maintenance services ensure compliance and safety. If you are unsure which smoke alarm is best for your home, contact Ready Set Trades for tailored advice and professional installation.
- Homes built before 1997: may use battery alarms, though upgrading to hardwired is recommended for reliability
- Homes built or renovated after 1997: must have hardwired alarms with battery backup
- Homes built or renovated after 2014: if more than one alarm is installed, they must be interconnected
