Why this page is short
The official SA pages covering smoke alarms in homes, sales and rentals wouldn't load for us when we checked in October 2026. We'd rather tell you that than repeat rules we've only seen second-hand.
If a sale, a lease or a renovation depends on getting this right, check the South Australian Government's own smoke alarm information, or ask the Metropolitan Fire Service, before you rely on anything.
What holds in every state, SA included
AS 3786 is the Australian Standard for home smoke alarms. Its 2014 edition has been superseded, and manufacturers now need to meet AS 3786:2023, so look for the standard's number on the alarm itself.
Electrical work needs the correct licence anywhere in Australia, and each state runs its own licensing. An alarm wired into your home's power is electrical work. Swapping the battery in an alarm that takes one is an ordinary household job.
Photoelectric alarms pick up the visible smoke from slow, smouldering fires, and fire services in several other states recommend them. Photoelectric smoke alarms explained covers the difference.
Yours to do, and the electrician's
You can
- Press each alarm's test button and listen for it.
- Swap the battery in any alarm with a replaceable one.
- Find the manufacture date on each alarm's sticker.
Leave to a licensed electrician
- Fitting, moving or replacing any alarm wired to mains power.
- Linking wired alarms so they sound together.
- Finding out why a mains alarm's green power light has gone out.
Checking the electrician, and the certificate you get
Consumer and Business Services licenses electrical contractors in SA, and its Occupational Public Register has a licence search you can use before work starts.
When the job's finished, the electrician must issue an electronic certificate of compliance (eCoC) and give it to you within 30 days. It confirms they're correctly licensed and the work was tested, is safe and meets the Australian Standards.
If anyone gets a shock or tingle at home, SA Power Networks says to call it straight away on 13 13 66, and to stay away from that appliance or spot until its crew has checked it.
What we'd do in South Australia
Treat this page as a starting point, not the rule book. Confirm the current SA requirements from an official source before a sale or lease, use a licensed electrician for anything wired in, and ask for the eCoC. If your alarms are battery-only and getting on, photoelectric replacements marked AS 3786 are a sound choice wherever you live.
Want a specialist to sort it?
Tell us the job and your postcode. We match the licence-checked local electrician who does this kind of work, and they call you. No ring-around, and your number goes to them alone.