Home Pick

Best Smoke Alarms | Home Pick.

Are you looking for the top smoke alarms? This guide will help you find the best smoke alarms you can buy within the UK.


Introduction to the Best Smoke Alarms

The guide we have put together on top smoke alarms can help you discover the top brands that are available. We’ll discuss some of the most effective smoke alarms available. We’ll provide their specifications along with pros and cons as well as the average price.

The article will also examine other topics like the mechanism of a smoke alarm and the cost associated with installing a new smoke detector.

If you’re searching for a new alarm to protect yourself from smoke, this guide can prove to be very helpful.

What is a Smoke Alarm?

The first step is to take a look at what an alarm actually is. They’re self-contained devices that will detect the presence of smoke. They can trigger an alarm when they detect smoke.

The alarm is typically an alarm that makes a loud, beeping sound.

Smoke alarms first came into use developed in the 1930s.

They detect smoke and notify homeowners that they might be experiencing an imminent fire.

Your chances of surviving a home fire in the event that you have smoke alarms in place. Their primary function is to help save lives.

In England and Scotland the landlords are required to have smoke alarms installed in the properties they rent out.

If you’re a renter you must know what legal requirements are the landlord’s legal obligation regarding smoke alarms. In this way, you will be sure all your tenant rights are protected.

How Does a Smoke Alarm Work?

Now we will examine the functions of the smoke alarm in greater specific detail.

There are two major types of smoke alarms, Ionisation and photoelectric.

We will look at each of them more in depth in the following section.

In the case of smoke alarms based on ionisation, they are made up of a small amount of radioactive material encased between two plates that are electrically charged. The process then creates ionisation in the air, which causes an electricity to run between the plates.

If smoke gets into the room, it could cause a disruption in the flow of ions, which will reduce the flow of electrical current and set off alarms.

Photoelectric smoke alarms direct light sources into the chamber that senses. The chamber is placed in a way that the sensor doesn’t miss itself. If smoke is in the chamber, this will reflect light on the sensor that detects light which will trigger the alarm.

To attach an alarm that smokes, first take off the base plate of the alarm. Remove any tabs on the bottom of the alarm. Don’t drill into the wall or ceiling bind.

Also, examine the place you’ve picked to place your smoke alarm to find hidden cables or pipes. It is possible to detect hidden cables using an electric detector.

Set the base plate in the position you’ve decided to. Utilize those fixing holes on the base plate to mark the screw holes’ to be positioned on the ceiling or wall using pencil.

If you have timber battens that are hidden behind the ceiling’s plaster You can just attach the base plate to the timber, which means that you don’t require any plugs.

Then, use an appropriate drill bit that is of the right size for the wall plugs or screws you’ll use. The holes should be drilled in all of the locations marked.

If you’re drilling through the wall, a drilling device using hammer action must be employed. Always wear safety goggles when doing this kind of work. Install the wall plugs manually.

If necessary, lightly tap each outlet with a hammer until it is level to the ceiling or wall.

Place the plate on top using the screwdriver that comes with the screws provided in the smoke alarm. Install the appropriate battery. Inputting the battery in can trigger the alarm.

Reattach the alarm on the base plate. It is done by placing the alarm on the base plate, and then rotating it counterclockwise until it’s fixed in position.

Make sure that the alarm is properly twisted. In order to test your alarm you need to press the alarm’s button.

Naturally, the procedure to install the smoke alarm can differ according to the model of concern. The ideal is to place the alarm at the center of a ceiling, at least 300mm away from lighting fixtures or walls, and 3m from the bedroom door.

An alarm should be set up within 7.5 meters of each space in the house.

They should be situated in areas that are not prone to risk, such as bedrooms and rooms; however they shouldn’t be installed in bathrooms or placed too close to one, as humidity can hinder their capability to function.

It is recommended to place them in a spot that is easy to swap the batteries as well, once you’ve not violated the guidelines mentioned earlier. For instance it’s not recommended to put an alarm system for smoke over the staircase.

Be sensible and make sure that you have sufficient smoke alarms around your house and in a way that, should they sound you are more likely to be able to hear the sound. The hallway and landing and bedrooms are among the most important rooms that are fitted with smoke alarms.

Types of Smoke Alarms

The next section will discuss the ionisation and photoelectric-based smoke alarms in greater detail. We will explain the different types of alarms, and then give their pros and pros and.

It is important to note that it is recommended to have both kinds of smoke detectors installed within your home. This is because of their distinct advantages.

Photoelectric Smoke Alarm

A smoke alarm with a photoelectric component utilizes an optical chamber that can detect smoke.

The photoelectric alarms for smoke are better in detecting the presence of a burning fire than smoke detectors using ionisation.

A smouldering flame is most likely to happen when synthetic materials catch the flame.


  • More effective in identifying smouldering fires.


  • More expensive.
  • It lacks the benefits that come with an Ionisation smoke detector.

Ionisation Smoke Alarm

Smoke alarms that are ionisation-based use plates that are electrically charged and have an electrical flow that flows between each plate.

Smoke that enters the chamber could disrupt the flow, triggering the alarm.

This kind of smoke alarm works better than smoke alarms using photoelectric sensors in detecting flaming fires, which means the fire could be caught on paper, wood or other liquids that ignite.

This type of fire can produce lots of flames, but produces less smoke.

Because such fires are much more frequent than burning fires that smoulder Ionisation smoke alarms are particularly well-known.

Many believe that ionisation smoke alarms to be the most effective type of smoke alarm. However, both offer great benefits.

Ideally, you’ll have both of them in your home.


  • More popular.
  • Less expensive.
  • Better at detecting flaming fires.


  • Not as effective in combating smouldering fires.

Best Smoke Alarms

Smoke alarms generally last for around 10 years. Except as stated in the next subsections you should assume a life expectancy of approximately one decade.

You’ll probably need to replace the batteries each year or as soon as the alarm’s low-battery alarm sounds.

Smoke alarms that require hard wiring should be installed by a professional who is certified.

The main power must always be shut off prior to installing a new smoke alarm.

First Alert SC05 Smoke Alarm

The SC05 is a high-end smoke detector. The octagonal-shaped alarm is able to detect carbon monoxide and smoke.

It has photoelectric and electrochemical sensors. The SC05 comes with the battery’s end of life sound.

There is no need to rewire the circuit for it to be installed. It comes with two batteries.

It also comes with the test and hush buttons. The SC05 produces 85dB of sound in the event that an alarm has been turned off.

For installation of the SC05 mount, take it from its mounting base prior to securing the bracket to the ceiling or wall to ensure that the vertical slot is in the 12 o’clock location. Draw a line around the inside of the slots for mounting using the help of a pencil. Make each mounting hole. Use three-quarter” or 5mm drills.

Then, place screws made of plastic into each hole. Make sure to tap the anchors of the screw using a hammer lightly when needed. They should be level with the ceiling or wall.

Place the mounting bracket with the anchors. Install the mounting bracket in position using the mounting slots using two screws included with this item. Place the batteries.

Connect your alarm onto the bracket. The base guides of the alarm should be aligned with those on the bracket before turning it back around.

The SC05 will cost approximately £20 and comes with a seven-year guarantee.


  • It detects carbon monoxide and smoke.
  • Particularly high-pitched.
  • Long-term warranty.


  • A bit expensive.
  • A few users have voiced concerns about false alarms.

Aico EI41RC Mains Ionisation Smoke Alarm

This EI41RC is an illustration of a mains smoke alarm. This is an alarm directly powered by the house’s electrical supply.

In that regard the product does come with an additional 9-volt battery for the event of a power failure. It also comes with the ability to test one person.

In order to install this smoke alarm it is necessary to find the right ceiling to be hung and select the location that is not further than 300mm from obstructions and walls. The central portion that is the center of your room will be perfect to install the.

Before wiring the alarm, ensure you shut off the main power source so that you do not risk electrocution. Connect the wire to the terminals on the baseplate. Install the baseplate on the ceiling using the fixings supplied. Install the alarm on the baseplate.

There should be an audible click. Press the test button to verify whether the alarm is functioning in a correct manner.

Aico will give exact instructions on how to install the system, along with additional details, particularly on the wiring.

The main benefit of this Aico smoke alarm is that it allows you to connect it to up to 20 alarms, so that even if only one alarm is activated the alarms will all sound.

They can be connected to Aico radio wireless bases. Aico base radios, or through hard wire.

The smoke detector is the top mains smoke alarm, and it generates the sound of 85dB. It is available for purchase. Aico smoke alarm for around £17 up to £19.


  • It can be connected to other alarms, up to 20.
  • It can also be erected without difficulty.
  • Another very noisy smoke detector that is extremely loud.
  • It has a low battery alert.


  • If you’re looking to replace the battery that powers your backup it could be a bit difficult.

Google Nest Protect Smoke and CO Alarm (2nd Gen)

This smoke alarm from Google is one of the most popular and highly-rated products available which can detect both smoke and carbon monoxide.

One very helpful feature of this smoke alarm is that it uses a split-spectrum sensor rather than a photoelectric or ionisation approach, meaning that it has the benefits of both methods.

This means that it is effective at detecting smouldering fires and flaming fires alike. With the Nest App, you can silence the alarm with your phone.

It can also provide phone alerts when you’re out of the house regarding smoke or carbon monoxide being detected, a low battery or an issue with the sensor. It also comes with a night light feature.

Before fitting the Nest Protect alarm, you need to download the Google Nest app. It can be downloaded from the Google Play Store or the Apple App Store.

The Nest App will help with each step of installation in detail. Scan the Nest Protect QR code to connect it to the internet and any other Nest products in your household.

Turn off the power in your house to ensure that you won’t electrocute yourself.

If you have an old smoke alarm, twist the alarm cap to release it. Carefully remove it before taking out the two or four conductors present in the backplate of the old smoke detector.

Next, unscrew the backplate. Hold onto the screws. You’ll then notice a wire or two coming from the ceiling. Wire it up correctly following Google’s instructions.

You’ll be able to skip to this step from the point of removing an old smoke alarm if you don’t have one or lack one in a suitable location.

Then, screw the backplate of the Nest Protect with the old screws or the Nest screws. Plug the 230 volt connector into the Nest Protect. Make sure that no excess wiring is loose from the electrical box.

Hold the Nest Protect up against the backplate and twist it into place. Once the tabs drop into place, you know that it’s secure.

The Nest smoke alarm should be square with the ceiling or wall.

Repeat these steps if you’ve purchased more than one Nest Protect.

It has a noise level of 85dB. One downside is that it’s very expensive with a cost of around £90, but that may not be too surprising considering how hi-tech this alarm is.


  • Relatively easy to fit.
  • Hi-tech features.
  • Comes with a night light feature.
  • High-quality sensors.
  • The Nest App is very helpful.


  • Expensive option.

Kidde Firex KF20 Interlinked Smoke Alarm

This photoelectric smoke alarm can be interlinked with additional Firex alarms, all of which need to be hard-wired.

It has a hush & test button, an auto reset and a tamper resistant locking device. It also features a no-battery lockout so that if you’ve forgotten to add a battery, it will not close properly.

There is also a green light on the alarm to inform you that it is correctly receiving power via the mains.

To install the Firex KF20, first, line the mounting plate up with the standard electrical box holes or surface mounting pattress. If you wish to have the alarm fitted to the ceiling, the mounting plate can be employed to mark positions on the ceiling.

Drill the holes before inserting the screw plugs supplied with the Fires KF20. Screw them into the holes until the alarm is flush with the ceiling. Secure the mounting plate in place.

The blue cable of the smoke alarm’s connector plug will need to be wired to the neutral. Replace with (N) mains power cable. Connect the brown wire to the live mains power cable.

If you wish to interlink multiple alarms, the orange or white cable of the connector will need to be interconnected with the 3 core & earth cable.

Open the battery door. Place the new 9v battery inside the battery pocket. It must be secured right. Close the battery pocket door. You can lock the tamper-proofing lock with the screw provided.

Insert connector plugs to the pins on the back of the KF20. Check that the connector is attached properly.

Make sure that the smoke alarm is positioned to the mounting plate in a way that the key slot on the side of the smoke alarm is left of the mounting plate tab. Turn clockwise and fit it in place.

Turn the main power back on once you are satisfied. Hold the button on the front of the alarm for 3 seconds to check that the alarm is fitted and working correctly.

The manufacturer provides more information regarding installation and interconnecting the alarm online and with their manual.

It can also produce 85dB of sound. You can buy the Firex KF20 for £23 to £25 on average.

Additional Kidde smoke alarms worth considering include the Kidde Worry Free Smoke Alarm and the Kidde 21026051 Smoke Detector Alarm.


  • The Firex KF20 has a tamper resistant locking feature.
  • Can be interlinked with additional Firex KF20 alarms.
  • Has an auto reset.
  • Comes with a no-battery lockout.


  • May not be sufficient for large homes.
  • Some consumers have complained of a smoke alarm beeping noise with this product.

FireAngel SB1-TP-R

Another popular brand of Smoke alarms is FireAngel.

It is a FireAngel Smoke Alarm, called the SB1-TPR, is a smoke detector with a photoelectric circuit which is the best for detecting smouldering fires. It’s designed to ward off nuisance alarms, which is common with numerous smoke alarms.

To set up this detector for smoke, you must first take the base plate off the smoke alarm. Then, place the battery that is included.

The screws provided can be used to mount the baseplate on the ceiling. Turn the alarm clockwise to ensure that it can be attached onto the plate.

The test button should be held for five minutes. If the alarm sounds, you can be sure your alarm is functioning properly. Similar to most fire detectors their sound levels are 85dB.

It’s great for the grade F installations where cost of the installation is a concern. It is also backed by a three year warranty.

Although it’s intended to have a 10-year life expectancy, many customers say that it didn’t reach 10 years of use. The SB1 is available in two packs for the price of £10 up to £11.


  • Inexpensive.
  • Resists alarms from nuisance.


  • A life expectancy of 10 years could be too exaggerated.

Cavius Optical 10 Year Smoke Alarm

This alarm is a digital smoke detector. It comes with a 30-day low battery indicator, a 10- minute hush button, and sealed batteries with a 10-year life expectancy.

To install this alarm using the plugs and screws are available to mount the base onto the ceiling, before attaching the battery and then re-attaching the cap for the smoke alarm.

Cavius suggests installing at least one smoke alarm for each floor, and the ideal is to have a smoke alarm in each room. It is recommended to examine the security system prior to installing by pressing the test button.

At 3 meters at 3 metres, you can be able to hear 85 dB sound through that Cavius alarm for smoke detection. It is possible to purchase this alarm at a cost of £25 or £30.


  • Includes a 30 day low battery alert.
  • Sealed battery with a 10-year life expectancy.


  • A bit expensive.

Cost to Install a Smoke Alarm

We’ll now look at the costs of obtaining an experienced contractor to install the smoke alarm.

For many alarms powered by batteries installed will probably cost you between £80 to £120 for labour costs. However, wiring alarm installations you should expect to pay £140 or £180 for the labour.

Benefits of a Smoke Alarm

We’ll now look at the benefits of a smoke alarm more in depth.

Saves Lives

The primary advantage of having a smoke detector is protection for both you and other residents of your home.

Smoke alarms increase your odds of surviving a fire in your home.

Smoke inhalation is the most common cause of home fire deaths; therefore even without smoke alarms it is a high chance that smoke from an incident in the home could cause death to the house’s occupants in their sleeping.

Protects Your Home

Apart from their ability to fire alarms for saving people’s lives there is also a way to safeguard your house as a whole.

If you experience a massive and dangerous fire, after all the people within your home, as well as any pets are safe You should call the emergency services.

They will arrive as fast as they can and get it out.

The rapid response, starting with the help of functioning smoke alarms, will maximise the chance of your house’s possessions being secured as well as the home itself.


Even if you’re lucky and no fires do not occur within your home Smoke alarms will provide you with peace of assurance. A well-maintained and functioning smoke alarm can give you more safety at home.

Furthermore, if you purchase an advanced Wi-Fi-enabled smoke alarm like that of Google Nest Protect, you will be alerted to any alarms that go off in your home while you are on the go.


Q: What is an optical smoke alarm?

A: An optimal or photoelectric smoke alarm relies on the ability of smoke to reflect a light beam on to an internal sensor.

Q: How do you stop a smoke alarm from chirping?

A: There are various approaches that you may need to take to stop this issue.

You may need to fix a loose or incorrectly fitted battery, or it may be that the smoke alarm’s sensing chamber requires a clean.

An alarm reset may also prove necessary.

Q: What is the best smoke alarm UK?

A: The Google Nest Protect is perhaps the best smoke alarm on the market.

For a less expensive top quality smoke alarm, you should consider the Aico EI41RC.

Q: How long do smoke alarms last?

A: Generally, smoke detectors should last for 10 years.

With that said, there is no guarantee and you should replace a smoke alarm when necessary.

Q: How does ionisation smoke alarms work?

A: Ionisation-type smoke detectors contain a small quantity of radioactive material enabling an electrical current to flow between two electrically charged plates.

If smoke enters the detection chamber, it will reduce electrical flow and set off the alarm.



  • All Post
  • Carpentry & Handywork
  • Cleaning & Housework
  • Costs
  • Damp & Insulation
  • Doors & Windows
  • Driveways & Paving
  • Electrics & Security
  • Energy & Conservation
  • Extensions & Conversions
  • Flooring & Tiling
  • Gardening & Landscaping
  • Heating & Plumbing
  • How to
  • Ideas
  • Kitchens & Bathrooms
  • Painting & Decorating
  • Uncategorized
  • windows cleaning
Turning houses into homes, one article at a time.
Recent Posts
  • All Post
  • Carpentry & Handywork
  • Cleaning & Housework
  • Costs
  • Damp & Insulation
  • Doors & Windows
  • Driveways & Paving
  • Electrics & Security
  • Energy & Conservation
  • Extensions & Conversions
  • Flooring & Tiling
  • Gardening & Landscaping
  • Heating & Plumbing
  • How to
  • Ideas
  • Kitchens & Bathrooms
  • Painting & Decorating
  • Uncategorized
  • windows cleaning
Contact Info

All Rights Reserved © 2023 HomePick

Scroll to Top