
When it comes to protecting your home and family, few devices are more critical—and more overlooked—than smoke and carbon monoxide detectors. These small, inexpensive tools are your first line of defense against two of the most silent and deadly dangers in any home: fire and carbon monoxide poisoning.
Let’s break down why they matter, how they work, where to install them, and what homeowners should look out for during a home inspection.
1. What Smoke Detectors Do (and Why You Need Them)
Smoke detectors are designed to alert you in the earliest stages of a fire—often before you can see or smell anything. According to the National Fire Protection Association (NFPA), three out of five home fire deaths occur in properties without working smoke alarms.
Fires can spread in seconds. A working smoke detector gives you and your family precious time to escape—and could mean the difference between a near-miss and a tragedy.
Quick Facts:
- Smoke alarms should be installed in every bedroom, outside each sleeping area, and on every level of your home.
- Test them monthly and replace the batteries twice a year (or as recommended).
- The entire unit should be replaced every 10 years, even if it still seems to work.
2. Carbon Monoxide: The Invisible Killer
Carbon monoxide (CO) is a colorless, odorless, and tasteless gas produced by burning fuel—such as gas furnaces, stoves, fireplaces, and vehicles in attached garages. It’s impossible to detect without a CO detector, and it can be deadly within minutes.
Symptoms of CO poisoning include:
- Headache
- Dizziness
- Nausea
- Confusion
- Loss of consciousness
According to the CDC, over 400 Americans die from unintentional CO poisoning each year, and more than 100,000 visit emergency rooms.
3. Why Combination Detectors Are a Smart Choice
Today, many homes benefit from dual-function alarms that detect both smoke and carbon monoxide. These combination units reduce clutter and streamline maintenance—just remember to follow the manufacturer’s guidelines on replacement cycles.
If you’re unsure which type you have or need, a home inspector can help identify your current system and recommend upgrades.
4. Placement Matters: Where to Install Detectors
To be effective, detectors must be installed in the right places:
Smoke Detectors:
- On every level of the home, including the basement
- Inside every sleeping room
- In hallways outside bedrooms
- At the top of stairways
Carbon Monoxide Detectors:
- On every level of the home
- Near all sleeping areas
- At least 10–15 feet away from fuel-burning appliances
- Not directly above or beside stoves or fireplaces (to prevent false alarms)
5. Common Issues Found During Home Inspections
As home inspectors, we often encounter the following problems:
- Missing detectors entirely
- Detectors that are expired or non-functional
- Units with dead or missing batteries
- Improper placement (too low, too close to vents, or installed in the wrong rooms)
- Paint-covered detectors that no longer function correctly
These are simple fixes, but they’re often overlooked—and they can have serious consequences.
6. Make Sure You’re Covered: What You Can Do Today
Here are some quick steps you can take to protect your home:
- Press the test button on all your alarms—if they don’t sound, replace the batteries (or the unit).
- Check the manufacture date on the back. If it’s older than 10 years, it’s time for a replacement.
- Install new detectors where needed, especially near bedrooms and fuel-burning appliances.
- Consider interconnected detectors—when one goes off, they all do.
- Don’t forget rental properties: landlords are legally required in most states to install working smoke and CO detectors.
How a Home Inspection Helps
During a home inspection, we check every level of your home for code-compliant placement, condition, and functionality of smoke and CO detectors. If you’re buying, selling, or just doing routine maintenance, a professional inspection ensures your alarms are doing their job.
Final Thoughts
Don’t wait for an emergency to find out your detectors don’t work. These small devices are your silent guardians, and they play a huge role in home safety.
Have questions about your smoke or CO detectors?
Schedule an inspection with Nordic today—we’ll make sure your home is safe, sound, and up to code.