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

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Price guide

£40 - £250

low

£40

median

£100

high

£250

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 minimise 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 £50 to over £5,000.

Fire alarm systems and their installation costs

Everyone has different needs. Some might be looking for a simple battery-powered heat alarm, while others require a grade LD2 fire alarm system. Check out the table below to compare the cost of fire alarm systems in the UK:

Power source

Alarm type

Unit cost

Installation cost

Battery-powered

Ionisation

£15

£45 to £75

Battery-powered

Optical 

£10

£40 to £70

Battery-powered

Heat

£15

£40 to £75

Battery-powered

Smart

£50

£80 to £200

Battery-powered

Linked

£15

£45 to £75

Mains-powered

Ionisation

£25

£70 to £125

Mains-powered

Optical 

£20

£65 to £120

Mains-powered

Heat

£25

£70 to £125

Mains-powered

Smart

£150

£105 to £250

Mains-powered

Linked

£25

£70 to £125


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.

Type of alarm

Pros

Cons

Average cost

Mains fire alarm

No maintenance and always working since it’s connected to the electrical system

More expensive installation

£15

Battery fire alarm

Easy and inexpensive installation

Battery replacements and regular/weekly testing

£10

Ionisation alarm

Works well in dusty areas and even with cigarette smoke


Might produce false alarms if placed near the kitchen

£20

Optical fire alarm

Good for kitchens and hallways since the smoke from cooking does not trigger it

Doesn’t work in dusty places. Bathroom steam can also affect them and set them off. 

£15

Smart fire alarm

Can alert you wherever you are, so you are more likely that you hear the alarm

Check the quality first because some are better than others

£100

Heat fire alarm

No false alarms and is kitchen-friendly

Doesn’t go off until fire is established

£20

Linked fire alarm

The whole building is alerted

Wireless ones can be a little unreliable

£20


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

You can buy battery-powered alarms for £10 to £15. These types of alarms are easy to install. If you hire a service provider for installation, expect to pay around £40 to £75. Mains-powered alarms, which cost about £65 to £250, should be safely installed by an electrician. The cost of installing them is £75 to £125 per alarm.

There are also smart-enabled fire alarms in the market. You have two options. For a battery-powered alarm, the cost is £80 to £100 with installation. For a mains-powered smart alarm, the price is £105 to £250.


Area or home size

The size of your premises will determine the number of fire alarms you need. Note that the more alarms you need, the higher the fitting cost by an electrician. To get a fire alarm installed by a service provider, expect to pay around £100. This also depends on your location.


Ease of access

The electrician needs to access your consumer box, and if it’s challenging to do so, running the wires can add to the overall cost. If cables cannot be run above the ceiling, you will 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 minimise any damage. Monthly charges for the monitoring system are £15 to £45.


Fire alarm manufacturer

Manual or automatic fire alarm system prices depend 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.

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

Get an electrical safety certificate if you are planning to rent out your property or have issues with the wiring. Combine this with fire alarm installation since most electricians are experienced in doing both. The average cost of getting an electrical safety certificate is £120.

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 £4,000.

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. Expect to pay around £500, depending on the size of your home or building.

Post a task for fire alarm installation

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.

Price guide

£40 - £250

low

£40

median

£100

high

£250

Low, median and high bar chart distribuiton

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FAQs

There is a legal obligation that the fire detection system is in good working condition and strictly adheres to regulatory standards. Your fire alarm system is recommended to be checked at least bi-annually by fire alarm engineers certified by the required British Standards to carry out relevant identification and paperwork. Fire alarm installations are governed by British Standard BS 5839-6:2019, which is a protocol of practice for fire discovery and fire alarm systems for properties.
It depends. For grade A fire alarm systems, the cost of installation may be higher due to the job’s complexity. However, it’s best to leave it to a professional. They can hold a thorough risk assessment and ensure the system is wired correctly.
There is a legal obligation that the fire detection system is in good working condition and strictly adheres to regulatory standards. Your fire alarm system is recommended to be checked at least bi-annually by fire alarm engineers certified by the required British Standards to carry out relevant identification and paperwork. Fire alarm installations are governed by British Standard BS 5839-6:2019, which is a protocol of practice for fire discovery and fire alarm systems for properties.
It depends. For grade A fire alarm systems, the cost of installation may be higher due to the job’s complexity. However, it’s best to leave it to a professional. They can hold a thorough risk assessment and ensure the system is wired correctly.

It's free and takes only a minute.