- Smoke detector installation usually costs $70 to $150, about $110 typical.
- Installing one hardwired smoke or smoke and CO detector.
What smoke detector installation costs
Expect smoke detector installation to cost between $70 and $150, with $110 as a typical figure. Installing one hardwired smoke or smoke and CO detector.
| Price | |
|---|---|
| Low end | $70 |
| Typical | $110 |
| High end | $150 |
The range blends Fixr and HomeAdvisor (method below). Where you live matters: Koira's estimate is $95 in Arkansas and $135 in Hawaii.
What drives the price
- Battery or hardwired. Battery units are quick. Hardwired units can reach $500 or more with new wiring, HomeAdvisor says.
- Type. HomeAdvisor puts ionization detectors at $5 to $25. Combination and smart detectors cost more.
- How many. Interconnected detectors on every floor are a bigger job.
Smoke detector installation cost by state
Koira estimates for each state, built from the national $70 to $150. About 60% of a smoke detector installation price is labor, and only that part is scaled by the state's median wage for construction and extraction workers. A starting point, not a quote.
| State | Low | Typical | High |
|---|---|---|---|
| Alabama | $62 | $97 | $132 |
| Alaska | $81 | $128 | $174 |
| Arizona | $69 | $108 | $148 |
| Arkansas | $60 | $95 | $129 |
| California | $79 | $123 | $168 |
| Colorado | $71 | $112 | $152 |
| Connecticut | $79 | $123 | $168 |
| Delaware | $70 | $110 | $150 |
| District of Columbia | $77 | $122 | $166 |
| Florida | $63 | $99 | $135 |
| Georgia | $63 | $99 | $135 |
| Hawaii | $86 | $135 | $185 |
| Idaho | $68 | $106 | $145 |
| Illinois | $85 | $133 | $182 |
| Indiana | $72 | $113 | $153 |
| Iowa | $70 | $110 | $150 |
| Kansas | $67 | $105 | $143 |
| Kentucky | $65 | $103 | $140 |
| Louisiana | $63 | $99 | $135 |
| Maine | $71 | $111 | $151 |
| Maryland | $70 | $110 | $151 |
| Massachusetts | $83 | $130 | $177 |
| Michigan | $71 | $112 | $152 |
| Minnesota | $79 | $124 | $170 |
| Mississippi | $61 | $96 | $131 |
| Missouri | $72 | $112 | $153 |
| Montana | $71 | $112 | $152 |
| Nebraska | $66 | $104 | $141 |
| Nevada | $72 | $112 | $153 |
| New Hampshire | $70 | $111 | $151 |
| New Jersey | $80 | $125 | $171 |
| New Mexico | $63 | $99 | $135 |
| New York | $78 | $122 | $166 |
| North Carolina | $63 | $99 | $135 |
| North Dakota | $71 | $112 | $152 |
| Ohio | $72 | $113 | $154 |
| Oklahoma | $62 | $98 | $133 |
| Oregon | $75 | $117 | $160 |
| Pennsylvania | $71 | $111 | $151 |
| Rhode Island | $72 | $114 | $155 |
| South Carolina | $63 | $99 | $135 |
| South Dakota | $63 | $100 | $136 |
| Tennessee | $64 | $100 | $136 |
| Texas | $63 | $98 | $134 |
| Utah | $68 | $107 | $146 |
| Vermont | $70 | $110 | $150 |
| Virginia | $68 | $107 | $145 |
| Washington | $81 | $128 | $174 |
| West Virginia | $69 | $108 | $147 |
| Wisconsin | $73 | $115 | $156 |
| Wyoming | $70 | $110 | $150 |
Rural areas and cities in the same state can differ a lot.
How we got these numbers
| Guide | Range | Average | Use |
|---|---|---|---|
| Fixr | $70 to $150 | $112 | Counted |
| HomeAdvisor | $70 to $150 | $115 | Counted |
How the smoke detector installation range is combined: low end from the middle of the guides' lows, high end from the middle of their highs, typical from the middle of their averages (a range's midpoint where no average is given). Figures read on each guide's page on October 9, 2026.
Labor share used: 60%. HomeAdvisor puts electricians at $50 to $100 an hour; detectors are cheap. The share is Koira's assumption. State factor: the state's median hourly wage for construction and extraction workers over the national $28.63 (BLS, May 2025), kept between 0.7 and 1.4.
For contractors: price this job in Koira
Electrical work needs permits and inspections, so put the permit on its own line and the homeowner sees why it is there.
On Koira's free Office plan you build the estimate, text it, collect the deposit and turn it into an invoice when the smoke detector installation is done. Price this job in Koira, free.
Sources: Fixr, smoke detector installation cost; HomeAdvisor, smoke detector installation cost; BLS Occupational Employment and Wage Statistics, May 2025 (state and national files). Prices checked October 9, 2026. More for your trade: how the trade runs on Koira.