Missing smoke and CO detector unit
A previously installed smoke/CO detector unit is missing.
Less commonFix nowSafetyCombination smoke and CO detectors
Why it matters
A smoke/CO detector unit that is missing from its base will not alert you if there is an unusual buildup of smoke from a fire in the home.
How common is it?
Found in 1% of the homes HomeCloud evaluated, Sep 2025 to Oct 2026.
Counted by the finding's name on HomeCloud reports, so the true number can be a little higher.
How soon to fix it
HomeCloud reports list this as a fix-now item.
More safety resources
Where to put smoke and carbon monoxide detectorsWhich rooms and floors need smoke and CO alarms, spots to avoid, battery vs hardwired vs combination alarms, and when to replace them.Radon test results explainedWhat pCi/L means, short vs long-term tests, the 2.0 and 4.0 levels, why results vary, and what to do with a high result when buying a home.