Smoke Alarm Installation & Compliance
Licensed Adelaide electricians for smoke alarm installation, replacement, testing and rental property compliance. We install hardwired and 10-year sealed lithium photoelectric alarms across Adelaide and the Western Suburbs. Compliance certificates issued on the day.
Call 0401 185 310 for a free quote.
Why smoke alarms matter
A working smoke alarm gives you the minutes you need to get out of the house safely. The Country Fire Service and SA Metropolitan Fire Service both say the same thing. Most fatal house fires happen at night, while people are asleep, and a working photoelectric alarm in the right location is what gets people out alive.
The flipside is that an alarm with a dead battery, an alarm older than 10 years, or an alarm installed in the wrong spot does almost nothing. That is why South Australian law sets out clear rules about the type, age and placement of alarms in every home.
South Australian smoke alarm laws
The rules differ depending on when your property was purchased. Here is the current position in plain English.
Properties purchased on or after 1 February 1998
Must have one of the following installed:
- A 240V hardwired smoke alarm with battery backup, or
- A 10-year non-removable, non-replaceable sealed lithium battery alarm.
Battery-only alarms with a standard 9V battery are not compliant for these properties.
Properties purchased before 1 February 1998
Can use battery-powered alarms (9V), but these still need to meet Australian Standard AS 3786:2014 and be replaced every 10 years.
Type of alarm required
All alarms installed in SA must meet AS 3786:2014. Photoelectric alarms are strongly recommended by the SA MFS because they detect smouldering fires (the kind most often responsible for fatalities) much faster than ionisation alarms.
Where alarms need to be installed
The National Construction Code (Volume Two, Part 9.5) requires alarms on every storey of a residence, in hallways near bedrooms, and in any area where someone sleeps. Open-plan homes need additional placement based on layout.
If you are unsure whether your home is compliant, a licensed electrician can inspect and advise during the same visit.
Hardwired vs 10-year lithium alarms
Both meet the law. Which one suits your property depends on a few practical factors.
Hardwired alarms (240V with battery backup)
- Powered directly from your home's mains
- Battery backup kicks in during power outages
- Interconnectable, so when one goes off, every alarm in the house sounds
- Installation requires an electrician (cannot be done by the homeowner)
- Best for new builds, full home rewires, or when an existing hardwired alarm needs replacement
10-year sealed lithium alarms
- Battery is sealed inside and lasts the full 10-year life of the alarm
- No wiring required, so faster to install
- Some models are interconnectable wirelessly
- Cheaper upfront but the whole unit gets replaced after 10 years
- Best for older properties without existing hardwired alarms, or for quick rental compliance
We can install either type. Most homes end up with a mix depending on layout and ceiling access.
Rental property compliance for landlords
If you own a rental property in South Australia, smoke alarm compliance is on you, not the tenant. Under the Residential Tenancies Act 1995 (SA), the landlord is responsible for ensuring the property has working compliant alarms throughout the tenancy.
What that means in practice:
- Alarms must meet AS 3786:2014 and be the right type for the property's purchase date
- Alarms must be tested before each new tenancy begins
- Alarms must be replaced before they reach the 10-year mark stamped on the back of the unit
- Records of testing and maintenance should be kept
Most landlords engage a licensed electrician annually or every 6 months for a compliance check. We handle this for property managers and self-managing landlords across Adelaide.
Certificate of Compliance
After every visit, we issue a Certificate of Compliance covering:
- Type and placement of each alarm
- Date of last test
- Battery and unit condition
- Compliance status against AS 3786:2014 and SA legislation
The certificate is your proof of compliance for insurance, property managers, and SA Government requirements. We email it shortly after the visit.
Why use a licensed electrician for rental compliance
Anyone can press the test button on a smoke alarm. A licensed electrician is required to:
- Install or replace any hardwired alarm
- Confirm wiring and switchboard integrity
- Issue a Certificate of Compliance that holds up legally
- Spot related issues (loose connections, outdated switchboards, missing safety switches) during the same visit
It is often cheaper to bundle a smoke alarm check with a wider electrical safety inspection because the electrician is already on site.
What we offer
Smoke alarm installation
New install or replacement of hardwired and lithium alarms across all rooms required by law. We supply quality photoelectric units that meet AS 3786:2014, install to NCC placement standards, and test before leaving.
Rental property compliance check
A scheduled visit (annual or 6-monthly) covering smoke alarm testing, battery checks where applicable, replacement of any alarm nearing its 10-year mark, and issue of a Certificate of Compliance. Fixed pricing per visit.
Combined electrical safety inspection
A wider visit that includes smoke alarms, safety switches (RCDs), switchboard inspection, and general electrical condition. Recommended every 12 months for rentals and 5 years for owner-occupied homes.
Emergency replacement
If a smoke alarm is faulty, end-of-life, or has been damaged, we can replace it same-day across Adelaide and the Western Suburbs.
How long does it take
A standard smoke alarm install or replacement in a single-storey home takes around 30 to 60 minutes. A full rental compliance check including testing, certification and minor remediation is usually under 2 hours. We can give you a fixed price by phone in most cases.
Frequently asked questions
How often should smoke alarms be tested in South Australia?
The SA Metropolitan Fire Service recommends pressing the test button monthly, vacuuming the alarm at least every 6 months, and replacing batteries in non-sealed units every 12 months. For rental properties, most landlords schedule a professional test annually or at the start of every new tenancy, whichever comes first.
Do I need a photoelectric or ionisation alarm?
Photoelectric. SA law requires alarms to meet AS 3786:2014, which both sensor types can satisfy, but the SA MFS and CFS strongly recommend photoelectric because they respond much faster to smouldering fires. Queensland requires all dwellings to have interconnected photoelectric alarms by 1 January 2027, and the ACT requires photoelectric in new dwellings. South Australia has not banned ionisation, but every alarm we install is photoelectric because it is the safer choice.
Can I install a smoke alarm myself?
For pre-1998 properties, a homeowner can install a battery-only alarm provided it meets AS 3786:2014. For properties purchased on or after 1 February 1998, only a 240V hardwired alarm or a 10-year sealed lithium alarm is compliant, and any hardwired alarm must be installed by a licensed electrician. A licensed install also comes with a Certificate of Compliance, which is what landlords, insurers and property managers ask for.
How do I know if my smoke alarm is too old?
Every compliant smoke alarm has a manufacture or expiry date printed on the back. The maximum service life is 10 years from the manufacture date. If the unit is older, it must be replaced regardless of whether it still beeps when tested.
What happens if my rental property fails compliance?
If a tenant raises a complaint or an inspector identifies a non-compliant alarm, the landlord is liable. In a worst-case fire claim, an insurer may also deny coverage if alarms were non-compliant. Annual compliance checks are far cheaper than the alternative.
How much does smoke alarm installation cost?
Pricing depends on the type of alarm, number of locations, and whether existing wiring is in place. Most single replacements are a fixed call-out plus the cost of the alarm. We give a free upfront quote before any work begins.
Do you install interconnected smoke alarms?
Yes. Interconnected alarms (where one going off triggers all of them) are required in new builds and strongly recommended for older homes. We install both hardwired and wireless-interconnected systems.
Get a quote
Call Top Option Electrical on 0401 185 310 or use our online quote form. We service Adelaide and the Western Suburbs, family-owned since 2015, fully licensed (PGE 202163) and insured.
