Home SafetyEasy DIYAny time of year
Test smoke & CO detectors
Test monthly, replace batteries annually, replace units every 10 years.
How often
Every month
Time needed
15 min
Typical cost
$5–$20
Helps avoid
~$0
How to do it
Detailed instructions from NFPA, a trusted authority on this topic.
Read the NFPA guideCommon questions
How often should you test smoke & co detectors?
Every month. Any time of year.
How much does it cost to test smoke & co detectors?
Typically $5 to $20 in parts and supplies. Skipping it risks roughly $0 in repair or replacement costs.
How long does it take?
About 15 min.
Can I test smoke & co detectors myself?
Yes — this is a straightforward job for most homeowners with basic tools.
Which of these does your home actually need?
Answer a few questions about your home and HomeGuard builds your personalized maintenance schedule — the right tasks, at the right time of year, for your appliances and climate.
Build my free scheduleMore home safety maintenance
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