Smoke and CO Detector Installation Cost Calculator
Estimate smoke and carbon monoxide detector installation cost based on number of units, detector type, and wiring requirements.
Last updated: March 25, 2026
Smoke and CO Detector Installation Cost Calculator
Estimate smoke and carbon monoxide detector installation cost based on number of units, detector type, and wiring requirements.
Estimated Total
$480
Itemized Breakdown
This calculator provides estimates based on national averages adjusted for your region. Actual costs may vary significantly based on specific project conditions, contractor availability, material prices, and local market factors. Always get at least 3 quotes from licensed, insured contractors before starting your project.
Want the full picture?
Read our complete Smoke & CO Detector Installation Cost in 2026: What to Expect cost guide with material comparisons, contractor tips, savings strategies, and regional pricing data.
Quick Cost Reference
Cost by Tier
Battery-only standalone detectors (not interconnected). Self-install: 3-4 units covering bedrooms and hallways. No electrician required. Meets minimum code in many jurisdictions.
Hardwired interconnected system: 6-8 combination smoke/CO detectors with battery backup, professionally installed on existing 120V circuits in bedrooms, hallways, and living areas.
Full interconnected hardwired system: 10-14 smart detectors (Nest Protect or similar) with Wi-Fi, smartphone alerts, voice alarms, and new dedicated circuit. Integrated with security system.