Smoke / CO Detector Replacement Cost in Cambridge, MA
What homeowners in Cambridge typically pay to replace a smoke / co detector in 2026.
Typical range
$40–$120
Most homeowners pay around $80 installed.
EstimatedUpdated 6/17/2026
How we calculated this
Hardwired requirements in local building codes necessitate professional electrical labor.
Nearby cities
Other safety replacement costs in Cambridge
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