How much does it cost to install a fire alarm system?

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Price guide

$600 - $1,000







Low, median and high bar chart distribuiton

Fire can cause severe property damage, harm people, and claim lives. Compared to natural disasters, you can prepare for fire incidents. Since fire burns and spreads very swiftly, preventive measures, such as fire extinguishers, smoke detectors, and heat detectors, can help minimize damage.

Take a step further by installing a fire alarm system. A reliable fire alarm can alert people immediately in case of fire. Residential or commercial fire alarm system installation costs $600 to $1,000.

Different fire alarm systems and their costs

Check out the table below to compare the advantages and disadvantages of different fire alarms and their costs.



Price per square foot


Smoke and heat detectors

Alarms with visual and audio alerts

$2 to $3

Complex (for large buildings)

Smoke and heat detectors

Alarms with visual and audio alerts

$4 to $6

Basic but with an additional sprinkler 

A suppression system for the quick containment of fires

$3 to $12

Choosing a fire alarm

Check out the table below to help you decide what type of fire alarm best fits your needs and budget.



Average cost

Carbon monoxide detector 

Monitors carbon monoxide levels in the air

$15 to $150

Smoke detector

Installed on the ceiling with batteries

$10 to $65

Heat detector

Usually used to protect physical property and stored merchandise

$11 to $150

Flame detector

Alerts when there is a large scale fire or explosion

$2,800 to $3,000

Factors affecting the cost of fire alarm installation

Fire alarm installation costs depend on the type of fire alarm system you need, the size of your premises, and the number of sensors or detection elements within the system. 

a handyman installing a fire alarm

Fire alarm type

Smoke detectors cost an average of $50, while carbon monoxide detectors are $15 to $150 each. Heat detectors give alerts in warehouses that people don't constantly occupy. These detectors cost $10 to $100 each. The sprinkler system, which is very important for protecting life and property from severe fire damage, costs $2 to $10 per square foot.

Area or home size

The size of your premises will determine the number of fire alarms you need. On average, fire alarm equipment is priced at $1 to $2 per square foot. Meanwhile, commercial system installation projects cost between $4 and $12 per square foot of coverage.

Ease of access

The electrician needs to access your consumer box, and if it’s challenging to do so, running the wires will add to the overall cost. If cables cannot be run above the ceiling, you need to pay extra for them to be boxed or tacked into position.

Monitoring frequency

The difference between a smoke detector and a fire alarm is whether it’s monitored or not. Like installing a burglar alarm, a fire alarm system is watched 24 hours a day, seven days a week by a monitoring service provider. If an emergency arises, day or night, the team immediately calls the nearest fire department to minimize any damage. Monthly charges for the monitoring system fall anywhere between $50 to $70.

Fire alarm manufacturer

The cost of fire alarm installation depends on the manufacturer. Some system providers require the fire alarm system to be installed by their own installers to ensure that the job is done according to their guidelines. 

Other alarm providers exclude the installation from their packages and leave it to the homeowner or a third party. The cost of getting a fire alarm installed spends on your location. Choosing a tradesperson will cost you around $30 to $100 per hour.

Installing a fire alarm system

For battery-powered alarm installation, it’s a simpler process: 

  • Decide where to install it.
  • Keep it away from light fittings and bathroom doors.
  • Remove the cover and screw the base to the ceiling.
  • Pop in the batteries and replace the cover.

For a mains-powered alarm, you need to hire an electrician to save yourself from the hassle and make sure it’s safely done:

  • The electrician checks if there is a dedicated slot on your consumer unit to run your fire alarms. This is usually a 6-amp circuit breaker. 
  • Power off. Then the wires are run to the consumer unit.
  • Depending on the location of the alarms and their proximity to the consumer unit, the smoke alarm might be run above the ceiling or boxed in.
  • The consumer unit wire is connected to the smoke alarm. If the alarm system is linked, a second wire is connected simultaneously, which will link another alarm in the chain.
  • The smoke alarm is screwed and attached to the ceiling.
  • The electrician checks the connections, and the cover is put back on.

Additional factors affecting fire alarm installation prices 

Now that you have an idea about fire alarm siren prices, you must plan. Don’t forget to check on these considerations before hiring a professional installer.

a handyman setting up a fire alarm

Getting an electrical safety certificate

If you are planning to rent out your property or have issues with the wiring, get an electrical safety certificate. Combine this with fire alarm installation since most electricians are experienced in doing both.

Rewiring your home

If your home is older and hasn't undergone renovations in recent years, it’s wise to have your electrician check if it has wiring issues. If it needs rewiring, your insurance coverage can be an issue. If left unresolved, it can get costly in the future, as high as $1,000.

Fitting a security system

While you are at it, you might want to check your security system and see if it needs an upgrade. You might need to install one if you haven’t.

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Prepare well and ensure that your fire alarm system - which can help save lives if the need arises - is installed properly. To get an accurate quote for fire alarm installation, post a task on Airtasker and connect with nearby professionals shortly.

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There is a legal obligation that the fire detection system is in good working condition and strictly adheres to regulatory standards. It is recommended that your fire alarm system be checked at least bi-annually by fire alarm engineers certified by local standards to carry out relevant identification and paperwork. Fire alarm systems should adhere to the standards of the National Fire Protection Association (NFPA) under National Fire Alarm Code NFPA 72.

It is always best to have your fire alarm system to be installed and checked by a professional. This is to ensure that it’s wired properly, and will work properly when the need arises.

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