01 - Overview
What We Actually Do
Hardwired installation. An alarm wired to the mains with a battery backup, rather than a battery-only unit that depends on somebody replacing it.
Interconnection. Alarms linked so that one detecting smoke sounds all of them. This is the single change that makes the most practical difference in a house with bedrooms at one end and a kitchen at the other, and it can be done by cable or, in an existing building where running cable is impractical, by wireless interconnection.
Placement. Where alarms go is determined by the building rather than by preference, and it is the part people most often get wrong when fitting their own.
Testing and replacement. Alarms have a service life and are replaced rather than repaired. Testing confirms the ones you have still work.
The record. What was installed, where, when, and when each is next due.
The short version
- Hardwired alarms with battery backup, wired properly rather than plugged in
- Interconnection by cable or wireless so one alarm sounds them all
- Placement determined by the building, not by where it is easy to reach
- Testing and replacement of existing alarms, with the dates recorded
- A written record, which for a rented property is the deliverable
02 - What's included
Everything We Cover on the Job
New Hardwired Alarms
Wired to a circuit with battery backup, installed where the building requires them rather than where the ceiling is easiest.
Interconnection
By cable in new work or where the ceiling allows it, wirelessly in existing buildings where running cable would mean opening walls.
Replacing Existing Alarms
Alarms have a service life and are replaced rather than serviced. We check the date on what is there and tell you what is due.
Testing
Confirming existing alarms actually operate, which a chirp does not, and recording the result.
Rental Compliance
Testing, replacement and the dated record that a rental provider has to be able to produce.
Whole Buildings
Every unit in a block on one attendance, which is far cheaper and far easier to schedule than flat by flat.
03 - Why it matters
Interconnection Is the Change Worth Making
A smoke alarm at the far end of a house is only useful if you can hear it. In a single-storey house with a long hallway, or a two-storey house with bedrooms upstairs, an alarm sounding in the kitchen at three in the morning does not reliably wake anybody.
Interconnected alarms solve that: one detects, all of them sound. It is the change that most improves how an installation actually performs, and in existing buildings it is far easier than most people expect, because wireless interconnection removes the need to run cable through finished ceilings.
The other point worth making plainly: alarms expire. They carry a manufacture date and a service life, and after that they are replaced rather than tested. Plenty of houses have alarms well past that date which still chirp reassuringly when the button is pressed.
‘The button tells you the horn works. It does not tell you the sensor still does.’
Peter, licensed electrician & owner
Sources AS 3786Energy Safe Victoria



