Everything you need to know about smoke alarms | PEMCO

Everything you need to know about smoke alarms

A smoke alarm is one of the smallest devices in your home and one of the most important. But having one isn't the same as having the right one, in the right place, working the way it should.

The National Fire Protection Association reports that nearly three out of five home fire deaths occur in homes with no working smoke alarm. In the Northwest, where older housing stock is common and heating systems work hard through long winters, that number hits close to home.

Here's what to know about choosing, placing, and maintaining smoke alarms, and how your setup could help lower your home insurance premium.

What Type of Smoke Alarm Do You Need?

A standard smoke alarm sounds when it detects smoke. That works well if someone is home to hear it and respond. If you're away or asleep at the other end of the house, the alarm goes off with no one to act on it.

A monitored alarm connects to a central dispatch center. When it triggers, the monitoring company contacts emergency services on your behalf, whether you're home or not. For anyone who lives alone or travels frequently, that distinction matters.

It matters for your insurance too. Our Protection Device Discount covers three monitoring tiers:

• Local alarm – audible alert only (these are required for a policy)
• Self-monitoring – the system sends an alert to your phone or app
• Central monitoring – a dispatch center is notified automatically

Each tier beyond local alarm may qualify for a different level of savings, and discounts stack if you have qualifying devices across multiple categories: fire, gas, theft, and water.

Where Should Smoke Alarms Be Installed?

Most homes need more smoke alarms than people expect, and current standards are specific about where they go.

Current NFPA standards call for at least one alarm on every level of your home, inside every bedroom, and outside each sleeping area. For a two-story, three-bedroom home, that's a minimum of five.

A few installation details that make a real difference:

• Mount them on the ceiling, centered in the room, or within 12 inches of the ceiling on a wall.
• Keep them away from kitchens, bathrooms, and areas near vents or fans. Steam and cooking smoke cause false alarms, which leads people to disable them.
• Use interconnected alarms so when one sounds, they all sound.
• Consider combination alarms. Photoelectric models detect slow, smoldering fires. Ionization models detect fast-flaming fires. A combination unit covers both.

In older Northwest homes especially, it's worth checking whether your alarms reflect current standards. Requirements have changed significantly over the decades.

If you're renting, your landlord is required to install smoke alarms in Washington and Oregon. Keeping them working is your responsibility.

How Often Should You Test and Replace Your Smoke Alarms?

Washington State Patrol data shows that 66 people died in residential fires in Washington in 2024, and most of those fatalities occurred in homes where alarms were absent or not functioning at the time. In many cases the alarm was there. It just wasn't ready.

Testing monthly using the test button takes about 30 seconds. Replace batteries at least once a year. Changing them when the clocks change is an easy habit to build. If an alarm doesn't sound when tested, swap the battery first. If it still doesn't work, replace the unit.

Most manufacturers recommend replacing smoke alarms entirely every 10 years. The sensors degrade over time, even when the alarm looks fine from the outside. This smoke alarm maintenance guide covers what to check and when.

How Effective Are Home Fire Sprinkler Systems?

Smoke alarms give you early warning. Sprinkler systems can limit how far a fire spreads.

They're not common in existing homes, and retrofitting one is a significant investment. If you're building new or planning a major renovation, they're worth factoring in from the start because new-construction installation costs are considerably lower.

The NFPA reports that sprinkler systems reduce the risk of dying in a home fire by about 80% and cut property loss per fire by roughly 71%. They activate within seconds and target only the room where the fire is burning, not the whole house.

Could Your Smoke Alarms Qualify You for a Discount?

If you have monitored smoke alarms in your home, you may already qualify for savings through our Protection Device Discount. It covers fire, gas, theft, and water devices, and discounts stack across categories.

Not sure what you have or whether it qualifies? A local PEMCO agent can review your setup and let you know where you stand. Or call us at 1-800-GO-PEMCO.