Smoke Alarm Installation
From 1 January 2027, every Queensland dwelling must have interconnected photoelectric smoke alarms. We install compliant systems across the Sunshine Coast, hardwired or wireless, tested and certified by a licensed electrician at a fixed price.
Queensland's smoke alarm laws are the strictest in Australia, and the final deadline is set: from 1 January 2027, every dwelling in the state must have interconnected photoelectric smoke alarms in the required locations. New builds have complied since 2017, and homes sold or leased have needed to comply since 2022. The 2027 date brings every remaining home into line, including yours if you own and live in it. Nuvolt Electrical installs compliant systems across the Sunshine Coast: the right alarms, in the right places, properly interconnected, tested and certified by a licensed Queensland electrician.
What Queensland Law Actually Requires
Four rules decide whether your alarms comply. Most older homes fail at least two of them.
Photoelectric, not ionisation
Queensland law requires photoelectric alarms complying with AS 3786, and alarms must not contain an ionisation sensor. Photoelectric alarms detect the slow, smouldering smoke that typically kills people in house fires, and they respond earlier with fewer false alarms from cooking.
Interconnected
Every alarm in the dwelling must be interconnected with every other alarm. A fire that starts in the garage or living room at 2am needs to wake you in the bedroom, and only interconnection does that. When one alarm detects smoke, all of them sound together.
Hardwired or 10-year battery
Alarms must be either hardwired to 240 volt mains power with battery backup, or powered by a non-removable 10-year battery. If you are replacing an existing hardwired alarm, the replacement must also be hardwired, which is work only a licensed electrician can do.
Less than 10 years old
Smoke alarm sensors degrade. Every alarm must be less than 10 years old, and the manufacture date is printed on the back of the unit. Part of our install is dating your existing alarms, because plenty of homes are relying on alarms that expired years ago.
Where Alarms Must Go
The legislation is specific about locations, and placement is where most DIY installs fall short. For a typical home, compliant coverage means alarms:
- In every bedroom
- In hallways that connect bedrooms to the rest of the home
- If there is no hallway, between the bedrooms and the other parts of the storey
- On every storey, even storeys with no bedrooms, on the most likely path of travel out of the home
- Positioned away from corners, air conditioning outlets and ceiling fans, where the standard says they actually work
- Every alarm interconnected, so when one sounds, they all sound
Dealing directly with a licensed contractor (Lic# 92489), not a call centre or a commission salesperson.
Hardwired 240V with battery backup
Alarms wired to mains power with a backup battery for blackouts, interconnected by cable or wirelessly. The most robust option, never dependent on a battery alone, and the required option wherever an existing hardwired alarm is being replaced. Hardwiring is licensed electrical work, which is exactly what we do.
Wireless RF with sealed 10-year battery
Compliant photoelectric alarms with a non-removable 10-year battery, interconnected by radio frequency instead of cable. A practical choice where ceiling access makes cabling impractical, common in some older Sunshine Coast homes. Still fully interconnected: when one sounds, they all sound. We quote whichever approach genuinely suits your home, and both comply.
Renting or Selling? Your Deadline Has Already Passed
The 2027 date only applies to owner-occupied homes that are not changing hands. If you lease a property, compliant interconnected photoelectric alarms have been required at every new lease or renewal since 2022, along with an obligation to test and clean each alarm within 30 days before a tenancy starts. If you sell, the home must comply at settlement and compliance is declared as part of the transfer paperwork.
In practice that means non-compliance surfaces at the worst moments: mid-sale, mid-lease-renewal, or in an insurance conversation after a fire. Getting the system installed and documented now is cheap insurance against all three. We provide the certificate and records that let you show, not just say, that the property complies.
Assessed, Installed & Certified
Assess
We walk the home, date and test any existing alarms, and map where alarms are required under the legislation for your layout.
Fixed-Price Quote
You get a clear written quote covering the alarms, the wiring or wireless interconnection, and the installation. No surprises.
Install & Interconnect
Quality photoelectric alarms installed in the compliant positions, hardwired with battery backup or wirelessly interconnected to suit the home.
Test & Certify
Every alarm tested individually and as an interconnected system, and where required we provide the appropriate Queensland electrical certificate.
Smoke Alarm Questions
Straight answers on the 2027 deadline, photoelectric alarms, interconnection and landlord obligations, from the licensed contractor doing the work.
What exactly changes on 1 January 2027?
From 1 January 2027, every Queensland dwelling must have interconnected photoelectric smoke alarms in the required locations, regardless of whether it is being sold, rented or simply lived in. This is the final stage of legislation that has been phasing in since 2017. New builds have complied since 2017, and homes being sold or leased have needed to comply since 2022. The 2027 deadline closes the loop on every remaining owner-occupied home.
What is the difference between photoelectric and ionisation smoke alarms?
Photoelectric alarms use a light sensor to detect visible smoke particles, so they respond early to slow, smouldering fires, the kind that fill a sleeping home with smoke. Ionisation alarms sense fast-flaming fires but respond much later to smouldering smoke and false-alarm more often near kitchens. Queensland law now requires photoelectric alarms and prohibits alarms containing an ionisation sensor, so if your alarms are the older ionisation type, they need replacing.
What does interconnected actually mean?
It means every alarm in the home talks to every other alarm, so when one detects smoke, all of them sound at once. That can be done through hardwired interconnection cabling or by wireless radio frequency between compatible alarms. Interconnection is the part of the law that saves lives at night: a fire two rooms away triggers the alarm in your bedroom while you still have time to get out.
Should I choose hardwired 240V alarms or wireless battery alarms?
If your home already has hardwired alarms, replacements must be hardwired, and in most homes hardwired alarms with battery backup are the more robust long-term choice since they never depend on a battery alone. Wireless interconnected alarms with sealed 10-year batteries are a legitimate option where running cable is impractical, such as some older homes with difficult ceiling access. We assess the home and quote the approach that fits it, and both paths fully comply.
Where do smoke alarms have to be installed?
In every bedroom, in hallways that connect bedrooms with the rest of the dwelling, and on every storey of the home, including storeys without bedrooms, where an alarm goes on the most likely exit path. If bedrooms open onto living space rather than a hallway, an alarm goes between the bedrooms and the rest of the storey. Placement rules also cover distances from corners, fans and air conditioning outlets, which is where many DIY installs quietly fail.
I am a landlord. What are my obligations?
Rental properties in Queensland have needed compliant interconnected photoelectric alarms since 2022 for any new lease or lease renewal, so if you lease your property, this applies now, not in 2027. Landlords must also test and clean each alarm within 30 days before the start or renewal of a tenancy, and replace any alarm that fails or passes its 10-year age limit. We install compliant systems and provide the paperwork that documents the work for your records.
What happens if I sell my home?
Since 2022, homes sold in Queensland must have compliant interconnected photoelectric alarms at settlement, and the seller declares compliance as part of the transfer process. Non-compliance becomes a conveyancing problem at the worst possible time, in the middle of a sale. If a sale is on your horizon, sorting the alarms early is far less stressful than doing it under contract deadlines.
Can I install smoke alarms myself?
Battery-powered wireless alarms can legally be installed by a homeowner, but anything involving 240 volt wiring, which includes replacing any existing hardwired alarm, must be done by a licensed electrician. The bigger risk with DIY is placement and interconnection: alarms in the wrong spots or alarms that do not actually talk to each other look compliant on the ceiling but fail the requirements. We install to the legislation and test the whole system as one.
Get Compliant Before the 2027 Deadline
Interconnected photoelectric smoke alarms, installed and certified by a licensed Sunshine Coast electrician. Get a fixed-price quote, or book our electrical safety check and we will assess your alarms and your switchboard in the same visit.
Where we do this
Smoke alarm compliance work runs right across the Coast, from older homes in the hinterland towns to rentals and unit blocks near the beach.