What Queensland’s smoke alarm law requires
Queensland has the strictest domestic smoke alarm rules in the country. Under Queensland’s fire safety legislation, a compliant home needs smoke alarms that are:
- Photoelectric and compliant with AS 3786-2014, with no ionisation sensor
- Interconnected, so when one alarm sounds, they all sound
- Hardwired to the mains, or powered by a 10-year non-removable lithium battery
- Less than 10 years old
- Installed in every bedroom
- Installed in hallways that connect bedrooms to the rest of the home, or if there’s no hallway, between the bedrooms and the rest of that storey
- Installed on every storey, even if there are no bedrooms on that level
Interconnection can be done with cabling between hardwired alarms, or wirelessly between compatible alarms. Both are allowed, and both need the alarms to work as one system.
Key dates: 2017, 2022 and 2027
The law has been phased in over several years:
- Since 1 January 2017: new homes and homes undergoing substantial renovation have had to meet the full requirements.
- Since 1 January 2022: homes being sold, and homes being leased or having a lease renewed, have had to comply.
- From 1 January 2027: all domestic dwellings in Queensland must comply, including owner-occupied homes.
So if you own and live in your home, and you haven’t sold or rented it since 2022, this deadline is aimed squarely at you. Our blog post on the Queensland smoke alarm laws for 2027 covers the changes in more depth.
Every home in the state that isn’t yet compliant has the same deadline, and electricians’ diaries fill up quickly toward the end of the year. Booking in now means you can choose a time that suits you, rather than taking whatever’s left in the final weeks.
It also gives you time to sort out anything we find along the way, such as an old switchboard or an alarm location that needs a bit more work to reach.
Hardwired or 10-year battery alarms?
Both options are compliant. The right choice depends on your home and what’s already there.
Hardwired alarms run off mains power with a backup battery. They’re the usual choice for new builds, renovations, and homes that already have hardwired alarms. If you’re replacing an existing hardwired alarm, the new one must also be hardwired. Installing hardwired alarms is electrical work and needs a licensed electrician.
10-year lithium battery alarms with wireless interconnection suit homes where running new cables would be difficult, such as some older homes, high-set homes with limited roof access, or units with concrete ceilings. They avoid cutting into ceilings and walls, but they need replacing as a set when they reach the end of their life.
Many homes end up with a mix, for example hardwired alarms in accessible areas and wireless alarms linked to them where cabling isn’t practical. We’ll recommend what makes sense after we’ve looked at your home, and we always check that the alarms we fit are compatible with each other.
Where alarms go, and where they don’t
Getting the number of alarms right is only half the job. Placement matters too. Alarms need to be on or near the ceiling in the required locations, and the regulations set clearances away from things that interfere with smoke reaching the sensor or cause false alarms, like ceiling corners, light fittings, air-con vents and ceiling fan blades.
Stairways, sloping ceilings and exposed beams have their own placement rules. We also avoid spots near kitchens and bathrooms where steam and cooking fumes are likely to set alarms off, as long as that can be done while still meeting the required locations.
Landlords and rental properties
If you rent out a home in Queensland, it has had to comply at every new lease or renewal since 2022. Landlords also have to test and clean the alarms within 30 days before the start or renewal of each tenancy, and replace any alarm that’s flat, faulty or at the end of its life. Tenants have their own responsibilities during a tenancy, such as testing alarms and replacing removable batteries.
We work with landlords and property managers on compliance and servicing. See our rental property electrical page for how we handle rentals, and our blog on landlord electrical obligations in Queensland.
NSW homes in the Tweed and Byron areas
If your home is across the border in Tweed Heads, Kingscliff, Byron Bay or Ballina, NSW rules apply, and they’re different. NSW requires at least one working smoke alarm on each level of a home. Landlords have their own obligations to check alarms are working each year and to repair or replace them when needed.
NSW doesn’t currently require the full Queensland-style setup of alarms in every bedroom with interconnection for existing homes. That said, many of our NSW clients choose to go further than the minimum, because interconnected photoelectric alarms in bedrooms give better warning. NSW Fair Trading is the best source for the current NSW rules.
What’s involved and what affects cost
We start by checking your existing alarms: their type, age, location and whether they’re interconnected. Then we work out how many alarms you need and where, and give you a written quote. The main things that affect cost are:
- How many bedrooms and storeys your home has
- Whether existing hardwired alarms and cabling can be reused
- Roof and ceiling access for new cabling
- Whether you choose hardwired, wireless or a mix
- Any other issues we find, such as an older switchboard
Most homes are done in a single visit. We test every alarm, confirm they all sound together, and leave you with paperwork showing what was installed. If it makes sense, we can also do a general electrical safety inspection while we’re there.
The Queensland Fire Department website has the official detail on the smoke alarm legislation, and it’s worth a read if you want to check the rules for yourself.