How Much Does Smoke Detector Installation Cost? [2025 Data]

Normal Range: $70 - $150

Smoke detector installation costs $70 to $150 for most homeowners, and the average cost is $115. A pro can give you more specifics based on the number of smoke detectors you need, their quality, and where they’re at in your home.

How we get this data
smoke detector mounted on ceiling
Photo: Lost_in_the_Midwest / Adobe Stock
smoke detector mounted on ceiling
Photo: Lost_in_the_Midwest / Adobe Stock

Professional smoke detector installation costs $50 on the low end and could cost up to $400. The average cost homeowners pay is $115. Smoke detectors are modern-day guardians ready to sound the alarm and save lives, so start your budget here.

Smoke Detector Cost by Type

The cost of the device is often not included in the price your local smoke detector installation pro quoted. Here's a peek at the estimated price range and differences between various smoke detector types.

Type of Smoke DetectorBest Used ForAverage Cost
IonizationDetecting flaming fires$5–$25
PhotoelectricSensing smoldering fires$10–$30
Dual-sensorWarning for various fire types$40–$150+
Smart Wireless connectivity and digital alerts$50–$150+

Ionization Smoke Detectors

These fire safety devices use a small amount of radioactive material to ionize the air in a chamber. When smoke enters, it disrupts the ionization process, triggering the alarm and providing early detection of fast-burning, flaming fires. Price ranges from $5 to $20 each.

Photoelectric Smoke Detectors

These models use a light beam and a sensor to detect the presence of smoke particles in the air. When smoke scatters the light beam, it triggers the alarm, making these detectors particularly effective at sensing slow-burning, smoldering fires. They are priced between $10 and $30 

Dual-Sensor Smoke Detectors 

If you're looking for a device that covers the bases, dual-sensor models combine ionization and photoelectric technologies to enhance fire detection capabilities. This dual-sensor approach provides effective early warnings for various fire types, from fast-burning to slow-smoldering fires. These units tend to cost more and include smart tech options. Your out-of-pocket cost ranges from $40 to $150 or more.

Smart Smoke Detectors

As the name implies, these offer wireless connectivity and high-tech features. They can send real-time alerts to your smartphone, integrate with smart home systems, and provide remote monitoring, enhancing fire safety and convenience. Prices vary widely but can range from $50 to $150 or more per unit. 

Smoke Detector Installation Cost Factors

man wiring smoke detector
Photo: MachineHeadz / iStock / Getty Images

Several factors can determine what you ultimately pay for fire protection.

Hardwiring vs. Batteries

Battery-operated smoke detectors rely exclusively on batteries for power, ensuring their functionality without any electrical connection. On the other hand, hardwired smoke detectors primarily use electricity, with the added safeguard of a backup battery to maintain operation during power interruptions. 

If you decide to go with a hardwired model, but the wiring for your gadget doesn't already exist, this will increase your project cost by quite a bit, and you may also require the services of a licensed electrician near you. Your out-of-pocket cost will likely depend on their hourly rate—about $50 to $100 per hour—and the total cost for this project could be $500 or more

FeatureWired Smoke DetectorNon-Wired Smoke Detector
Power source Electrical wiring with backup batteryBattery-powered
InstallationTypically requires professional installationCan be installed without a professional
InterconnectivityEasily interconnected with other detectors in the same systemUsually standalone, but may have limited interconnectivity
MaintenanceBattery replacement required periodicallyBattery replacement is the primary maintenance task
ReliabilityLess prone to battery failuresSusceptible to battery failure if not maintained
PlacementFixed location based on electrical wiringFlexible placement options
CostHigher upfront cost due to wiring and installationLower upfront cost, but ongoing battery replacement costs
IntegrationEasier integration with home security systemsLimited integration options
Power outagesContinues to operate on backup batteryBattery operates through outages
LifespanLonger lifespan due to continuous power supplyLifespan limited by battery life
WarrantyMay include warranties or ongoing supportNot as common, varies by brand

Building Codes

7 places to put smoke detectors in your home illustrated, including bedrooms, kitchen, and near stairways

Local guidelines dictate where and how many smoke alarms you need in your home; for example, you may need one in every bedroom and on each floor, plus in hotspots like kitchens. This can easily quadruple your costs depending on your home’s size.

Additional Features

Installing smoke alarms with extra features like carbon monoxide detection or heat sensors may increase your tally.

Integration

If you already have an extensive home security system or smart home system and want to install new smoke detectors that work with it, expect the cost to increase. Integrating smoke detectors requires specialized expertise, raising installation fees over and above the cost for installing a standalone smoke detector. 

Emergency Installation

If you need immediate installation, it may come with higher costs due to the urgency, especially if you’re calling in a pro in their off-hours.

Warranty and Support

Installers may offer warranties or ongoing support, potentially adding more to the upfront installation bill. However, the expense can provide valuable assistance down the road.

Product Warranty

Products like these come with a limited warranty of up to 7 years at no additional cost. However, extended warranties are usually available for the more expensive units like smart devices. You can expect to pay up to $50 for two years of extended protection. Remember, extended warranties do not cover the abuse of a product, like hitting a smoke detector with a broom to turn it off.

Cost to Install a Smoke Detector Yourself

The cost to DIY this project varies based on the type of smoke detector you choose and if you need to purchase basic tools like a screwdriver, drill, or ladder.

Type of DeviceAverage Cost
Battery-powered$5–$50
Hardwired$15–$80
Smart$50–$150

Battery-Powered Device

woman changing battery to smoke detector
Photo: JulieAlexK / iStock / Getty Images

If you’re wondering how to install a smoke alarm, battery-powered smoke detectors are the easiest and most cost-effective to self-install. Depending on the brand and features, these detectors typically range from $5 to $50. Less expensive models offer peel-and-stick installation, which takes only seconds to complete. Others may need a drill or screwdriver to attach to the ceiling or wall. Remember, battery replacement costs will occur periodically, usually every six months to a year.

Hardwired Device

If you opt for a hardwired smoke detector and have existing electrical wiring in the desired location, the cost primarily includes the detector price, which can range from $15 to $80. Essential tools will also be required. If you’re wondering how to replace a smoke alarm like this, it helps to be comfortable handling wire connectors. 

Smart Device

Lastly, if you decide to install smart smoke detectors, the initial cost per unit can range from $50 to $150 or higher, depending on the brand and features—and if the device is a part of a larger security kit. These detectors offer remote monitoring, smartphone alerts, and integration with smart home systems, providing added convenience and peace of mind but at a higher upfront cost. And once again, you need the essential tools shared earlier.

DIY vs. Hiring a Pro

Whether to DIY or hire a professional to install a smoke detector depends on various factors, including your skills, experience, and the complexity of the installation. 

Battery-powered smoke detectors are well-suited for DIY installation. You can follow the manufacturer's instructions to mount them on ceilings or walls. Installing a wired smoke detector is also a cinch if the wiring is already in place.

Hardwired or interconnected smoke detectors—especially in homes without existing wiring—are more complex to install. In such cases, hiring a professional electrician is the way to go. When running new wiring, working with a pro is always safer for you and your home. Smart smoke detectors can also be fairly complex to install, so you may want to hire a pro, depending on the device’s features.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

Want to help us improve our cost data? Send us a recent project quote to costquotes@angi.com. Quotes and personal information will not be shared publicly.

Frequently Asked Questions

First, it is crucial to check your local guidelines or building codes. You should typically have one smoke detector for every floor, bedroom, and kitchen. Another rule of thumb is to install one smoke detector for every 500 feet in a home. Reviewing manufacturing recommendations, especially for interconnected devices, is also a good idea to ensure proper connection and monitoring.

Absolutely! Smoke alarms are lifesavers. According to the National Fire Protection Association (NFPA), per 1,000 reported home fires, homes without working smoke alarms have a death rate nearly twice as high as those that do have working alarms. So remember to ensure you have enough installed in your home and that they are working and in good shape.

No, but they both serve distinct life-saving purposes. Smoke detectors primarily sense the presence of smoke, typically caused by a fire, and emit loud alarms to alert occupants to evacuate. In contrast, carbon monoxide detectors monitor the levels of carbon monoxide gas, an odorless and colorless but deadly substance produced by incomplete combustion of fuels. When CO levels become dangerous, CO detectors sound alarms to warn inhabitants of potential poisoning risks. 

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