The basics
- A working smoke alarm on every storey and outside sleeping areas
- CO alarms outside sleeping areas in homes with a fuel-burning appliance, fireplace or attached garage
Hardwired and interconnected
New construction and many renovations call for hardwired alarms with battery backup, interconnected so one alarm triggers all. Second units require interconnection between units.
Renovations
When you renovate, the scope of work can trigger alarm upgrades in the renovated area. It's simplest to plan them into the electrical from the start.
Replacement
Alarms have a limited lifespan printed on the unit — typically around ten years. Replace them at end of life, not when they start chirping.
We install hardwired, interconnected alarms as part of renovation wiring.
Quick questions
Do I need hardwired alarms in an older home?
Existing homes can generally use battery alarms, but renovations and second units can require hardwired, interconnected alarms.
Where should CO alarms go?
Outside sleeping areas in homes with fuel-burning appliances or an attached garage, plus as the manufacturer directs.
How often should I test alarms?
Monthly, with the test button — and replace them at the end of their rated life.
