A working smoke alarm is one of the cheapest safety upgrades in your home, and looking after them is one of the jobs we do most. For over 40 years, O’Shea Electrical has helped Melbourne homeowners, landlords and businesses with everything from a quick smoke alarm battery replacement to a full hardwired, interconnected system.
All our electrician smoke alarm installation work is carried out by licensed electricians under REC 36928, and we’ll always give you a straight answer, even if all you need is a new battery.
Family-owned and based in Hawthorn East, servicing homes right across Melbourne.
Efficiently addressing smoke alarm installations and smoke detector installation needs for both old and new homes.
Regular servicing by highly trained professionals meeting AS 3786 standards. Replacement every 10 years for optimal efficiency. Same-day service with potential 30-minute* response time.
If your smoke alarm is beeping once every 30 to 60 seconds, it’s almost always a low battery. And if it started at 2am, you’re not alone. Batteries lose a little power as the house cools overnight, so the warning often kicks in during the early hours.
Here’s how to stop it:
No battery door? You’ve got a sealed lithium alarm. The battery is built in to last the life of the alarm, around 10 years. When it starts beeping, the alarm has reached the end of its life and the whole unit needs replacing.
Anyone can change the backup battery in a hardwired alarm. But replacing the alarm itself means working with 240V wiring, which must be done by a licensed electrician in Victoria. If an alarm keeps sounding with no sign of smoke and you can’t silence it, our emergency electrician team can help.
Smoke alarms should be replaced every 10 years from the date of manufacture printed on the unit, whether they’re battery-powered or hardwired.
Smoke alarms degrade over time. Sensors lose sensitivity, batteries fail, and older ionisation-type units can miss the slow-burning fires most common in residential properties.
It’s also time for a new alarm if it keeps beeping after a battery change, sounds for no reason, has turned yellow, or has no date at all. Just moved in and not sure how old the alarms are? Replacing them is a low-cost way to know they’ll work.
The big difference is power. Hardwired alarms run off your home’s 240V supply with a backup battery, so they keep working even if the battery goes flat. Battery alarms are simpler to fit, but in Victoria they’re only allowed as the main alarm in homes built before 1 August 1997.
The type recommended by Victorian fire services. Photoelectric alarms use a light beam to detect the smoke particles produced by slow, smouldering fires – the kind most likely to start in bedrooms and living areas. They’re faster to respond to this fire type and produce fewer nuisance alarms from cooking steam.
Older technology that responds faster to fast-flaming fires but is significantly slower to detect smouldering fires. We recommend replacing ionisation alarms with photoelectric units.
Wired directly into your home’s electrical system with a battery backup, these alarms communicate with each other – so an alarm triggered in the garage wakes you up in the bedroom. Installation must be carried out by a licensed electrician.
For homes not requiring a hardwired system, a sealed 10-year lithium battery photoelectric alarm is a reliable option. The battery lasts the life of the alarm. No annual battery changes, no flat batteries at 3am.
Every home in Victoria must have working smoke alarms that meet Australian Standard AS 3786. What you need depends on when your home was built or last significantly renovated:
| When the home was built or renovated | Minimum requirement |
|---|---|
| Before 1 August 1997 | Working battery-powered smoke alarms |
| After 1 August 1997 | Hardwired to 240V mains power, with battery backup |
| After 1 May 2014 | Hardwired with battery backup, and interconnected where more than one alarm is needed |
You’ll need at least one alarm on each level of the home and between the bedrooms and the rest of the house. Fire services also recommend alarms in every bedroom and living area. Not sure what your home has? We can inspect your alarms and let you know what’s needed.
Rental providers must make sure smoke alarms are correctly installed, working and tested at least once every 12 months, with batteries replaced as needed. Renters must also be given written information on how each alarm works and how to test it, and a faulty alarm counts as an urgent repair. You can read the full rules on the Consumer Affairs Victoria website.
We work with landlords and agents across Melbourne to test, replace and certify alarms. We can also complete your rental electrical safety check in the same visit.
With interconnected alarms, when one goes off, they all go off. So a fire starting in the garage or downstairs living room wakes everyone in the bedrooms, giving your family those extra minutes to get out.
They’re required in homes built or significantly renovated after 1 May 2014, and they’re a smart upgrade for any home. We can run new cabling between alarms or, where suitable, fit alarms that connect wirelessly to avoid cutting into ceilings.
O’Shea Electrical covers the full scope of smoke alarm installation and replacement:
Every job is completed by a fully licensed Melbourne electrician (REC No. 36928) and backed by our labour guarantee.
It depends on whether you need a battery alarm or a hardwired one, how many alarms your home needs, and whether they need to be interconnected. We’ll give you a fixed price before any work starts, so there are no surprises.
Whether you need a single smoke detector replacement or a full hardwired interconnected system installed across your home, O’Shea Electrical has you covered.
We service Melbourne CBD and suburbs including Richmond, Hawthorn, Box Hill, Doncaster, Caulfield, Essendon, Footscray, and everywhere in between. Looking for a local electrician in Preston, Burwood or South Melbourne? We’re usually not far away. You can also browse all our electrical services.
A single chirp every 30–60 seconds usually means a low or flat battery.
If the alarm is hardwired and still chirping after a battery swap, the unit itself may be faulty and require replacement. Persistent false alarms can indicate a dusty sensor, incorrect placement near a kitchen or bathroom, or an end-of-life alarm.
Call our team and we’ll diagnose it fast.
Any hardwired or hardwired interconnected smoke alarm must be installed by a licensed electrician. Battery-only alarms can legally be installed by a homeowner, but hardwired systems, required in Victorian homes built since 1 August 1997, are not a DIY job.
Victorian regulations require at least one alarm on every storey and between the bedrooms and the rest of the home, and fire services recommend one in every bedroom too. Alarms should not be placed in kitchens or bathrooms, where steam and cooking fumes can trigger false alerts. Ceiling mounting is preferred; wall mounting is only acceptable where ceiling mounting isn’t practical.
Test monthly by pressing the test button until the alarm sounds. Clean the unit every six months using a vacuum or compressed air to remove dust from the sensor chamber. Have a licensed smoke alarm electrician perform a full compliance test annually, especially for rental properties.
Yes. We work with landlords and property managers across Melbourne to ensure rental properties meet Victorian smoke alarm requirements. We can provide a compliance certificate on completion.
Most homes need smoke alarms, which sound a warning when they detect smoke. A fire alarm system goes further and can trigger sprinklers or alert emergency services, which suits larger homes and commercial properties. Learn more about our fire alarm installation service.
For a free quote and expert advice on smoke alarm installations, contact O’Shea Electrical. Ensure the safety of your property with our reliable and comprehensive services.
(03) 9900 1010
