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Smoke Alarm Installation

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Metropolitan's smoke alarm experts will keep your home safe, 24/7

We have professional and fully licensed electricians who can provide secure and certified smoke alarm installation services. Adhering to all local and national regulations, you can rest assured your home is safe and prepared in the event of a fire.

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Smoke Detector Installation and Safety

Smoke alarms are often the first line of defence for household fires. It’s a warning sign that truly proves to be lifesaving – day or night.

If your alarm does not work then you are seriously at risk. Not only that, but so is your family, neighbours and friends. To keep Australians safe, smoke alarms are a legal requirement in all homes, as set by the National Construction Code. Not only that, but smoke detectors must be hardwired in houses that have been built or renovated since 1997.

Metropolitan Electrical Contractors takes fire safety incredibly seriously. We can ensure your home meets specific state and national regulations. Our electricians will never compromise on safety.

You can call us for professional installation services and fault detection. We will check your wiring and provide high quality smoke alarms which meet all Australian standards.

For replacement or installation, call Metropolitan Electrical Contractors.

Types of Smoke Alarms

Before you have a smoke alarm installed it’s crucial you know what’s available. You should also seek advice on local regulations and maintenance requirements.

For example, if your device has a battery backup the battery should be replaced every 12 months. Meanwhile, the actual alarm should be replaced at least every 10 years.

With 25 years of experience, our team of trusted electricians can help you every step of the way.

In terms of protection, there are two main detectors for home use. They are:

  • Photoelectric Alarms: Containing a photocell and light beam shining away from the cell, they can essentially ‘see’ smoke before it bursts into flames, making them more effective for slow burning or smouldering fires, often characteristic of house fires. The photoelectric smoke alarm is often the preferred choice for Australian homes. The response time to fire is incredibly quick and reliable. It can be hardwired and with a lithium battery backup there is additional safety even during a power outage.
  • Ionisation smoke detectors: Containing a very small amount of radioactive material, they can essentially ‘smell’ the particles emitted in a fire, which makes them better for detecting fast flames, that don’t emit much visible smoke
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Australian Smoke Detector Regulations

While most Australian states and territories have similar guidelines, there is some slightly different smoke alarm legislation.

It can get confusing at times. Recommendations include an alarm on each floor of a house, and in some cases in each individual bedroom. You might even wonder if your home currently meets government expectations.

Don’t worry. When you call Metropolitan we will make sure your home is safe and secure. Meanwhile, the following is a brief outline of what you should adhere to:

  • ACT: Homes built or renovated since 1997 must have at least one hardwired alarm. Photoelectric preferred.
  • NSW: At least one alarm is required per house or floor level. Mains powered and interconnected recommended.
  • VIC: At least one alarm per home. Photoelectric recommended.
  • QLD: Mains powered or interconnected photoelectric alarms. A 10-year battery is also acceptable (as of 2017). Current alarms that are less than 10 years old must be replaced when they expire.
  • SA: At least one alarm which is mains powered or has a 10-year battery. New builds and extensions require interconnected alarms.
  • TAS: At least one per home. Hardwired or 10-year battery operated.
  • WA: Minimum of one alarm that is hardwired. Battery powered alarms are only allowed when mains power is not possible.
  • NT: At least one hardwired photoelectric alarm, or an alarm with a 10-year battery.

And remember, across Australia, all homes that have been built or even renovated since 1997 require hardwired smoke detectors.

Metropolitan is here to install smoke alarms and provide trusted advice. Contact us today for more information.

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Long Term Fire Safety

As a homeowner, it is an obligation to ensure maintenance is upheld with routine checks and replacement every 10 years.

For added peace of mind, our services come with interest free payment options**. This means you won’t have to put off smoke detector installation any longer – you can enjoy fast 1 hour* attendance and same day service from Metropolitan.

It’s important that you have an alarm hardwired for unbeatable confidence that your home and family are safe. We can determine the best locations for installation and take care of all the hard work.

Don’t delay any longer. If it’s time for an update or smoke alarm test, call Metropolitan Electrical Contractors.


Smoke alarms are one of those everyday items that are worth knowing a little more about.

Yes. The Building Code of Australia requires every home and business to have a smoke alarm. Every house built since 1997 must have one hardwired to the mains power supply. It is also required to be replaced every 10 years.

Each state and territory may have slightly different rules. However, the recommendation also extends to a central location for smoke detectors in a hallway near bedrooms, and on every floor of a multi-storey house. This could mean you need one per house, or even three or more.

Smoke detectors come in two different types; ionisation and photoelectric. Both ionisation and photoelectric alarms work in different ways.

Ionisation contains a very small amount of radioactive material. Ionised air flows in a current between two electronically charged plates, where smoke will disrupt the airflow, activating the alarm.

Photoelectric uses light aimed into a sensing chamber and angled away from the sensor. As smoke enters, the light reflects onto the sensor triggering the alarm.

No, smoke alarms cannot detect carbon monoxide. And vice versa, carbon monoxide detectors do not react to smoke. However, our Metropolitan Electrical Contractors can supply and install combined smoke and carbon monoxide alarms for best safety measures.

No, it’s very unlikely that vape will trigger an alarm as the vapour particles are not thick like smoke is. With a rise in e-cigarettes and vape pens there has been an increased concern in setting off smoke detectors. Although it’s not likely to trigger an alarm, we’d recommend not to vape near one just in case.

Chirping and beeping smoke alarms are caused by either a low battery, battery looseness or is not installed properly. Assuming there is no fire, it needs a new 9V battery. Batteries should be replaced every year to make sure they’re working effectively in case of an emergency.

For hardwired alarms which use long-term lithium batteries, a chirping noise certainly indicates a fault. You should contact our electricians in this instance.

A red, flashing light is actually a good sign. It indicates your alarm is working correctly. The flashes should be a consistent and bright flash. In the case of the flashing showing signs of abnormality, it’s best to contact the manufacturer or supplier for details, or get in touch with us today!

As specified and regulated by Australian Standard 3786, smoke detectors last up to 10 years. After a decade they must be replaced to comply with industry recommendations.

If you’re unsure of the age just check the unit for a date of manufacture or expiry date. You can also contact the manufacturer or supplier for details, providing the batch or serial number located on the unit.

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