How Much Do Smoke Detectors Cost?

The average cost to install a smoke alarm or carbon monoxide detector is $65 for one unit.

Each addition unit is $20.

Can I get a free smoke detector?

The Red Cross and its partners can test existing smoke alarms and install up to three free smoke alarms for those that need them. If you are able to purchase and install your own smoke alarm but would like information on home fire safety and smoke alarm installation, please visit

Do I need an electrician to replace a smoke detector?

They are hard-wired into our electrical system, but that doesn’t mean you need an electrician to replace them. Modern hard-wired smoke detectors don’t have wires in the back that need to be connected to loose wires in the ceiling.

Which type of smoke detector is best?

Here are the best smoke detectors you can buy:

  • Best smoke detector overall: First Alert Smoke and Carbon Monoxide Alarm.
  • Best hardwired smoke detector: Kidde Smoke Alarm Dual Sensor.
  • Best dual-sensor smoke detector: First Alert Photoelectric and Ionization Smoke Alarm.

What is the life expectancy of smoke detectors?

eight to 10 years