Safety & Accessibility
Smoke and CO detector installation cost in Murfreesboro & Rutherford County
Estimated range
$69 – $155
each
What this job covers
Install or replace smoke and carbon monoxide alarms in the required locations and test each unit.
Why homeowners book it
- Expired alarms
- Missing detectors
- New home
- Rental compliance
Materials
Mounting hardware and batteries included; alarms supplied separately.
What can add cost
- • Interconnected hardwired units
- • Attic access
- • Multiple floors
License, permit & inspection notes
Hardwired interconnected alarms require a licensed electrician.
Check your exact ZIP code
Prices shift by market across Tennessee. Enter your ZIP for the local range.
How these prices are calculated
Prices are estimated ranges for planning only. They are based on mid-to-high national cost data adjusted for your Tennessee market. Final pricing depends on access, existing conditions, materials chosen, and the scope confirmed on site.
In Tennessee, a contractor's license is required for most projects of $25,000 or more, and a Home Improvement license may be required for projects between $3,000 and $24,999 in counties that have adopted it. Electrical, plumbing, gas, HVAC, and structural work must be performed by the appropriate licensed trade, and many jobs require a permit and inspection from your local codes office.
Cost baseline: HomeGuide - Grab Bar Installation Cost · reviewed 2026-08-16