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How Much Does a House Alarm System Cost?

Burglar alarm systems for home installation, fitted by a professional, range in cost depending on a number of factors. We’ll explain what everything we’ve listed here means on this page:

Type of alarm Number of sensors/contacts Number of keyfobs Supply only cost Supply and install cost Monthly fees
Bell-only wireless 2 1 £69-£250 £169-£350 none
Bell-only wired 2/1 1 Not available £400 none
Monitored wireless 2/1 1 Not available £100-£200 £15-45
Auto-dialler alarm 1/1 1 £190-£310 £290-£410 none
Smart alarm 1 0 (your smartphone acts as keyfob) £159 £259 none

Which type of burglar alarm should I choose?

When people think of burglar alarms, ADT often spring to mind. They are the market leader in burglar alarms for houses and have been for years. But are they the right company offering the right system for you?

Burglar alarms have evolved a lot since they first became really popular additions to people’s homes in the 1980s and 1990s. At that time, sensors were sometimes a little too sensitive, and your burglar alarm might go off in the middle of the night for no reason at all. Wireless systems had a limited range so if you had any outhouses, sheds, or other outside buildings that needed protecting, it was difficult to find a sensor that was powerful enough. Nowadays, burglar alarms are far more technologically advanced. We’ll cover everything you need to know on this page, including:

  • The benefits of burglar alarms
  • The difference between wired and wireless alarms
  • The different kinds of Monitored alarms
  • What are DIY alarms?
  • An explanation of how a burglar alarm works
  • Questions to ask your installer
  • Other frequently asked questions
Houses in Clayton Lane with burglar alarm
Person securely opening a window

What are the benefits of a Burglar Alarm?

The reasons for getting a burglar alarm installed has not changed:

  • Protect your home and all its possessions
  • Protect your family from harm
  • Notify your neighbours and the Police of a break-in
  • Protect yourself from a confrontation with the burglar

It doesn’t matter to most homeowners that the number of burglaries has been dropping. The fact is that it’s still happening. And you never know when it’s your household that’s drawn the short straw this time around.

The sad fact is that most people don’t think about having an alarm fitted to their home until after they have been the victim of a burglary. If you don’t have an alarm on your home just yet, or you want to replace your old system with a modern home security system, please read on.

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Wired vs Wireless Burglar Alarms

The burglar alarm costs shown at the top of the page are for basic supply only and supply plus install work.

Each of the types of systems listed is customisable. You can add extra sensors, extra contacts, and extra keyfobs. You can specify to a monitored alarm installer whether you want the Police to be contacted in the event of a triggered alarm. However, this will normally cost you extra at the time of installation.

What are wired burglar alarms?

With a wired burglar alarm system, everything, including the sensors, is hardwired into the mains. It means that you never have to worry about a battery running low. However, the installation prices are a lot higher because of the amount of wiring that needs to be run, increasing your overall burglar alarm costs.

What are wireless burglar alarms?

More homeowners have wireless burglar alarms fitted than any other type of alarm. The main control panel is hooked up to the mains, but the sensors are battery-powered. Because they use so little electricity, the batteries used in sensors tend to last for a long time – many, many years. If the battery in a sensor is beginning to run low, it will either:

  • Send a message back to the control panel
  • Continuously flash until you replace the battery

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Monitored Burglar Alarms

You can choose to have your burglar alarm monitored. What that means is that, should something happen and the alarm is set off, your control panel will tell you or someone else.

What are bell-only alarms?

A system with no monitoring attached to it is called a “bell-only” alarm. It’s given that name because the only way it signals a disturbance is via the sound of the bell or siren from the box attached to the outside of your home.

For many years, British Telecom has run a system called BT RedCare. What BT RedCare does is inform either the Police and/or people who you indicated you want to know that an alarm has been triggered. Police will generally respond. However, if there are too many false alarms, they have been known to refuse to attend.

What a monitored alarm can do has progressed a lot in recent years. You can now wire microphones up in your home so that, when the alarm is activated, a monitoring station can listen to what’s happening. Some companies will install speakers too, which will challenge any intruder who has broken into your property.

What is an auto-dialler system?

You could select an “auto-dialler” system. When your alarm is triggered, the control panel uses either a fixed line or a mobile phone card to call someone you nominate to let them know that there has been an incident. For this to work, you need a landline phone connection, or you need to live in an area with good mobile phone reception.

What are smart alarms?

There is also a new type of monitoring linked to your mobile phone. These “smart alarms” contact you or someone you’ve nominated by smartphone if your burglar alarm goes off. They’ll typically show you live video from your home of the rooms where a break-in was detected. As with the “auto-dialler” system, you will need to make sure that your home gets a strong mobile phone signal before you invest in a system. Otherwise, you could end up with unnecessary burglar alarm costs.

Alarm Keypad

DIY burglar alarms

Many people looking to install their burglar alarm system will go down to one of the major DIY chains to pick out a system. The hope here is that installing it themselves will keep their burglar alarm costs down. B&Q burglar alarms are a particular best seller, although a wide range of alarm systems are now available online.

If you feel confident in installing either a wired or wireless burglar alarm, you can do this for yourself. It will probably take about 6-8 hours. However, we urge you to please make sure that you are certain of what you’re doing when connecting the burglar alarm panel (or the sensors) to your mains electricity.

If you later decide that you want your alarm to be monitored, you’ll need to pre-plan. You’ll need to buy an alarm panel that allows a monitoring function to be added. If it does not allow this, you will have to scrap your old alarm and replace it with a new one. This will mean you have spent out more on your burglar alarm costs overall. Speaking to an expert about all the options in advance and deciding on the best one for you could help to avoid this.

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How do Burglar Alarms Work?

There are four main parts to your burglar alarm:

Burglar alarm control panel

The burglar alarm control panel is the box on the wall (usually positioned by the front door) which switches the system off and on. Burglar alarm control panels receive signals from all the sensors in your home. Because the sensors use slightly different frequencies, you can switch the alarm on in certain parts of your home (while leaving it off in others). Your alarm system will only be looking out for alerts from the sensors it’s monitoring.

Sensors and contacts

Sensors are placed around your home, looking for movement in a room. They do this using Passive Infrared Detectors (PIRs). PIRs look for moving objects that give off body heat. When it detects them, and the burglar alarm is switched on, it will then go into emergency mode. In emergency mode, it will ring the bell box, contact the Police, send a text message, or do whatever it is you’ve requested to your installer.

You can also attach contacts to your doors and windows. If your alarm is switched on and someone tries to open a door or a window, the contact will detect this, and it will then trigger the alarm.


Keyfobs look like the type of car keys you press to open and shut the doors. You can use them to switch your alarm on or off.

“Bell box”

The bell boxes are attached to the outside of your home, generally at the front and the back. They show a burglar that an alarm protects your home. If your alarm system is triggered, it’s the bell box that makes the loud noise alerting people that something may be wrong. Although still called a bell box by many in the trade, it’s more usual now to have a siren sound than a clanging bell.

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What questions should I ask a potential installer?

Before you commit to a system and to a company, it’s better to check with a potential installer that the system they propose to install really will do the job you want it to do.

What is the lead time?

You might want to ask for “lead time”. In other words: if you place an order for a system, how long will it be before you can install it? If you’ve signed up for a monitoring package, find out how long they take to respond to alarm activations. Most companies should be able to produce statistics from the last twelve months for you.

What if my pet keeps setting off my burglar alarm?

Another scenario: you’re installing pet-friendly PIRs and, after installation, your cat keeps waking up the whole household by jumping on a sideboard at 3 in the morning. What remedial action will the company take if they told you that your pet will never set off the alarm?

Will a burglar alarm system protect me?

On the subject of coverage, go through with an installer why they think that the layout of the sensors they propose is going to protect you.

Does your alarm installer have any accreditations?

On a business front, you might want to ask for testimonials from existing customers who live near you. Top tip – online reviews are great for finding reliable companies so look them up before you commit.

Does your burglar alarm system come with a guarantee?

Despite the best of intentions, even really good businesses cease trading so you should ask if the company provides an insurance-backed guarantee that your system will still be serviced and repaired by a professional if the company goes into liquidation.

burglar alarm

Should my installer belong to a trade organisation?

There are three main trade bodies in the UK which burglar alarm companies can join. Those bodies are the Security Systems and Alarms Inspection Board, National Security Inspectorate, and the British Security Industry Association.

Membership of these bodies provides homeowners with peace of mind that, in the event of a dispute, there is an independent arbiter that can force the installer to put things right. Otherwise, the installer may be ejected from the membership. If they are thrown out, most business-to-business and insurance work will be denied to them, so continued membership is really important.

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Get 3 to 4 burglar alarm quotes from trusted suppliers

You can get connected with three or four burglar alarm companies in your area which have great reputations, keen prices, and superb customer care. How do we know? Because we checked them out ourselves.

We’ll put you in touch with these companies who’ll be happy to provide you with a quote on the system you want. The quote you receive is free and you’re under no obligation to accept any offer from any of the companies we put you in touch with. We’re simply here to help you find the best burglar alarm cost for you. For more information, please feel free to contact us.

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Your questions answered

How much does a burglar alarm cost?

A basic DIY burglar alarm will cost around £150. More sophisticated alarms can be priced upwards of £1,000 with additional monthly monitoring fees.

Is a burglar alarm a good investment?

Burglar alarms give you peace of mind and can mean that intruders are deterred from your property, saving you money. With a burglar alarm installed, your home or business insurance may become cheaper too.

What is a dialer burglar alarm?

In the event of a break-in or attempted break-in, a dialer burglar alarm dials a list of several numbers of your choice to alert them. This can also be used to raise the alarm in the event of a fire or other emergency.

How much does CCTV cost?

The price of CCTV can vary significantly depending on the sophistication of the system you choose. The cost can start as low as £20 and can run into the hundreds of pounds.

Are monitored alarms worth the money?

Monitored alarms cost more than bell-only alarms and less than auto-dialler alarms initially. However, they have monthly fees to consider but give you peace of mind that professionals are monitoring your alarm at all times.

Can you install burglar alarms for sheds and other outbuildings?

If you store items in your shed or any other outbuilding that are valuable and personal to you, it would be terrible if you went to all of the trouble and expense of fitting a burglar alarm to your main home only to find that, if you were burgled, the thieves went for the shed or another outbuilding instead.

It is possible to connect PIRs to your home system from a distance. However, the further the building or shed you're trying to protect is from your home, the more difficult it gets. It would be wise to ask a professional installer for advice in these situations.

Are burglar alarms pet friendly?

If you have small pets in your home, ask your installer about pet-friendly PIRs. This is a clever system which monitors your room except for the first metre or so of height in the room from the floor. So if your cat is just wandering around your front room in the dead of night, the PIR sensor frequencies won't see them because they're too low down.

If you have a large pet or your small pet likes to jump on furniture, tables, breakfast bars, and so on, a pet-friendly PIR may not actually provide the solution you're hoping for. In those cases, it would be better to go for a door or window contact instead of a PIR. Speak to an expert installer to find out how much these pet-friendly burglar alarms cost.

Do you need planning permission for a burglar alarm?

Burglar alarm installations (including the box on the outside of your home) are considered as minor installations and they are therefore not covered by planning regulations.

However, if you live in a listed building, in a conservation area, or your home is subject to Directive 4, then it's always advisable to contact someone from the planning department of your local council prior to committing any money. This ensures you don't spend out o any burglar alarm costs that could become unnecessary or unable to be installed in your home.

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Statement of Privacy Policy

Please read this privacy policy before using the website.

In this privacy policy references to (“we” “us” and “our”) is to Leads 2 Trade Ltd. Leads 2 Trade Ltd is incorporated in England with number 063990 and its registered office address is A18 The Embankment, Riverview, Heaton Mersey, Stockport, SK4 3GN. We provide a price comparison website called References to “you” and “your” are to the individual reading and using our website. For convenience we use the words “information” and “data” interchangeably. “Website” means “”.

How our business works for you

We endeavour to procure bespoke, free, no obligation quotes from potential suppliers of products and services to each of our customers, such as you, that make an enquiry via our website. This is a quote finding and supplier introduction service; we do not ourselves provide the products and services that you may require. We provide these services to consumers and businesses.

We aim to provide 1-4 quotes within 36 hours from your online completion of an enquiry working in conjunction with data controllers who specialise in the delivery of competitive supplier quotes. The number of quotes that we will try and help you to receive does vary depending on the product or service that you are looking to receive quotes for. If we do not call you before passing your details to the companies that supply the quotes we will stipulate the maximum numbers of companies that we will pass your details to when you enter your details in our product specific web form. If you have enquired about double glazing on our website one of the companies that we work closely with is Safestyle UK plc. Depending on your postcode area and requirements we may pass your details to Safestyle UK plc. We will reconfirm this when we speak to you on the phone.

To be able to deliver suitable quotations to you we send your personal data and the details of your requirements to potential suppliers.

How can you save money with us?

We offer a price comparison service. All of the companies that we deal with know that you are conducting a comparison, hence they will often offer cheaper prices, for example on labour, than they would were they approached directly by a customer, hence our service has the potential to get you big discounts.

Your consent

To provide our service we first explain in more detail how we use your personal information so that the consent you give us, which is detailed in the next paragraph, is fully and fairly informed.

You give us consent to use your personal information as outlined in this privacy statement when you manually enter information about yourself on our website and submit it as a request to receive our quote finding service. This consent allows us to use your data as described in this statement of privacy policy. If you do not provide your consent by submitting your details / clicking on submit we will be unable to provide our quote finding service to you.

You may seek further information about the scope of the consent as well as vary or withdraw your consent as outlined under the heading “What are my rights in relation to the personal data that you hold?”

What information do we collect?

We obtain personal information and business information (for business products and services) about you, only from you, and do not acquire information about you from anyone else.

Data entry

First, to provide our quote finding service we will ask you manually to supply us via the website with your personal details namely: First Name, Last Name, Email Address, Telephone Number, Street, House Number, Post Code and Company Name (for business products & services). You may also be asked on the website and by follow up telephone call for further information to help us process your request for quotations.

IP address

Second, information is obtained electronically when one computer connects with another across the Internet as when you visit our website such as such as your computer’s unique numerical Internet address (IP address). Information so obtained while necessary to the operation of and communication between computers may well also allow you as owner of the information to be identified, much like a name and address, and thus constitute personal data. The law requires such information to be identified and so far as practicable, for informed consent to be given by you, before the electronic information is passed from your computer to ours. Further explanation about the automatic electronic collection of your information is provided under the heading “Your electronic information”.

We do not use your IP address to identify you personally but these logs may contain unique identifiable information left by your computer.

We may use IP addresses to ensure that we are not receiving fraudulent registrations from the same IP address as evidence in the event of being challenged for unsolicited marketing. The IP address log would show that a registration took place on a given day.

How does our service work?

We provide our service to both consumers and businesses. The way the service works is very similar but due to the nature of the products and services and the suppliers of these, the processes are slightly different. From your perspective, you will receive the same level of service from us and your expectations in terms of receiving quotations from appropriate suppliers that you can then choose from are the same.

The processes how your data will be used are explained below.

Consumer products and services

After you submit your details we may phone you to discuss the products or services you seek from a suitable supplier, to check we’ll be able to meet your needs and, should you still wish to go ahead with us, to get you free and no-obligation quotes. This will normally be us but below explains how it works with the different products and services that we are able to help in the quoting process with.

At times we work as the appointment booking agent for the companies working on our network so even if you have requested direct contact from the company you may still receive a call from us in order to book the appointment for your quotation.

Business products and services

Enquiries for business products and services are handled by Leads 2 Trade Ltd.

If you have come to CompareCompanies looking for businesss products or services Leads 2 Trade will transfer your business and personal details on to up to four companies. Before passing your details to up to four companies we will check your details and match your details to a number of businesses to find the best deals. The businesses may contact you by email, telephone (including automated calls) and/or SMS. Quotations may be provided to you by appointment or electronically and you will be told over the phone how you can expect yours to be delivered.

How we get the quotes using your details

Consumer products and services

We take your details and pass them on to one or more companies that can provide the type of product or service that you are looking for and will invite those companies to submit quotes for your consideration.

We pre vet all companies that join our quote finding service as potential suppliers to our customers, such as you, to ascertain as best we can that they will be suitable for your requirements and will keep your personal data safe. However, the final responsibility for determining suitability to supply the product or service lies with you, the customer, when considering the detailed quotations and deciding if you wish to contract with a given supplier or suppliers.

Business products and services

We take your business and personal details and pass them to a specialist business solutions price comparison data controller. They will check your details and match your details to a number of businesses to find you the best deals.

They pre-vet all companies that join our quote finding service as potential suppliers to our business customers, such as you, to ascertain as best we can that they will be suitable for your requirements and will keep your personal data safe. However, the final responsibility for determining suitability to supply the product or service lies with you, the business customer, when considering the detailed quotations and deciding if you wish to contract with a chosen, given supplier.

Do you offer a guarantee or warranty for the products and services I eventually buy through your suppliers?

We are not responsible for the standard of work carried out by the suppliers that provide you with quotations as a result of your enquiry via our site. There is no warranty provided by us, implied or otherwise for the products or services provided by any suppliers that you contract with. Individual suppliers may offer their own warranties, but these and any standards of workmanship are not in any way associated with Leads 2 Trade Ltd. or its partners.

Keeping your details safe…

We take the security of your data very seriously from the outset. Our web address is HTTPS. (HyperText Transport Protocol Secure) This is the protocol used to access a secure Web server. We use https:// as the prefix to our Web address rather than the common http://, so that your session is managed by a security protocol and the transmission of data is encrypted to and from the Web server.

Secure certificates (SSL Certificates) are in place. These are small data files that digitally bind a cryptographic key to an organisation’s details. These allow secure connections from a web server to a browser. SSL is used to secure the transfer of your data to our server.

Our server is protected by a firewall. Log in details are securely shared internally between employees.

Any personal data held in our database is encrypted. If there are any security breaches, your data is encrypted and therefore secure.

Each supplier to whom we pass your information in order to provide you with quotes has contracted with us to keep your data safe and use it only for the provision of a quote and, if selected by you, to provide the product or services you require.

We always have contracts in place with the companies that we pass your details on to both to ensure that they will keep your data secure and that they comply with the rules of the GDPR (General Data Protection Regulation) which we also operate within.
Please be assured – we will not use your details for marketing or use or pass your details to third parties other than as described in this statement without explicit consent from you.

Finally, please note that the transmission of information via the Internet is not completely secure. Although we will do our best to protect your personal information, we cannot guarantee the security of your information transmitted to our site; any transmission is at your own risk. Once we have received your information, we will use strict procedures and security features to try to prevent unauthorised access.

Lawful basis for processing your data

We rely on your explicit consent to process your personal data. This means that we ask you to consent to the following use of your data:

Business users only

We will email or text you about similar products and services. We will only do this if you haven’t opted out of receiving such emails or texts.

To create custom and lookalike/ similar audiences

We like to work with Facebook, Google and other platforms (“Platforms”) to reach out to you with adverts for Other Products. We also like to use Platforms to reach out to other people who might like to use our quote request service.

We do this in two ways. In both cases, your data, along with other data, is used to create a custom audience and/or a lookalike/similar audience. Whenever an audience is shared with a Platform, the data is first hashed and pseudonymised, meaning that any data within the audience that could identify a person is replaced with an artificial identifier. So, the process is secure. Also, we don’t share more data than we need to for the purpose of creating the audience.

Transfers of data outside the EEA (European Economic Area)

We share your personal data within our business and with data processors who can find suitable product and service suppliers for you. Your data will then be used to enable suppliers to provide quotations and potentially move towards a contract with you.

Some of the suppliers that may offer products and services to you are based outside of the EEA.

We transfer your data as detailed above with your consent.

Data Retention Policy

We keep your personal data for no longer than is necessary for the purposes for which it is being processed. This is to reduce the risk that it will become inaccurate, out of date or irrelevant.
We ensure that your personal data is securely disposed of when no longer needed.

What are my rights in relation to the personal data that you hold?

Your rights are embodied in the contract formed between us when you visit the website (as subsequently augmented when submitting your personal information and, if you are called, when speaking on the phone) and as contained in the General Data Protection Regulations 2018 – also known as GDPR.

If you have any questions or concerns please first read this section of the statement and then email our Data Protection Officer on, They will be pleased to assist before as well as after you may have provided personal information to us.

You may also write to our Data Protection Officers either at our registered office address stated at the outset of this statement.

If you need more information about data protection you might contact the Information Commissioner: see

The GDPR provides individuals with the rights in relation to personal information about themselves which is held by us as summarised in the table below.

Some of the rights are unlikely to be of practical use. For example, if you wish for a copy or correction or cessation of use of some or all of your personal data we, our suppliers and our other introducing companies are likely already to have eradicated it from our or their system given the short periods your date is retained and its limited use.

Nevertheless, the GDPR principle of transparency in particular provides you with the right to enquire and to be informed and we briefly set out all of the rights here. Further information about the rights and the circumstances in which they apply may be obtained from a number of published sources and from our fact sheets which are available on request.

Information Right – you may require us to provide a more detailed explanation of how we collect, process and use your personal information.

Personal Data Access Right – you may require us to provide an electronic copy of your data free of charge.

Personal Data Correction Right – you may require us to correct your personal information as held by us.

Personal Data Erasure Right – you may require us to permanently erase the personal data that we hold about you.

Data Processing Restriction Right – you may require us to stop using your data for particular purposes such as mailing or profiling.

Data Processing Objection Right – you may require us to suspend using your data if for example it is incorrect or you simply wish to withdraw your consent.

Data Portability Right – you may require us electronically to transfer your personal information to another supplier, for example to facilitate switching.

Automated Decision-Making Right – you may require us not to make decisions about you relying solely only on a computer decision.

Breach Notification Right – if in the unlikely event there occurs a breach of security which is likely to result in a high risk to your rights as a data subject, we must inform you without undue delay.

How else can we help?

Rights aside, if you have a change of heart and do not wish us to pass your information to potential suppliers or another introducing company please let us know immediately by email or, should we call you, during our phone conversation and we will remove your information from our and their systems.

You are not bound to enter into a contract with any supplier that provides a quotation to you and can unsubscribe from any communications related to your enquiry from them or us at any time.

If you have any questions, please email

Your electronic information

Your electronic information means information relating to you, which may or may not be capable alone or with other information of identifying you of the kinds illustrated by what follows in this section. Your electronic information is obtained by us in by: (A) the use of cookie devices lodged within your computer (B) information disclosed by your browser and (C) features of your computer recognised and “remembered” by ours.

A) Cookies

Cookies save you from re-entering information when you return to the site. This other data is collected by cookies from your navigation around the site. A cookie is a small amount of data, which we send to your computer. The data is then stored on your browser or hard disk. Most web browsers can be set to prevent you from receiving new cookies, notify you before accepting cookies or disable cookies altogether. Details about this can normally be found in the Help facility provided with your browser. If you disable cookies, you will not be able to receive personalised facilities. If you do not want your visits to our website to be monitored in this way you can disable certain cookie functions as described below: If you wish, you can usually adjust your browser so that your computer does not accept cookies. If you do this, you will still be able to browse around the site but certain functions will not be available. Alternatively, you can adjust your browser to tell you when a website tries to put a cookie on your computer. How you adjust your browser to stop it accepting cookies or to notify you of them, will depend on the type of Internet browser programme your computer uses. If your computer uses Microsoft Windows Explorer or Mozilla Firefox, you will need to follow these instructions after clicking onto this link Go to the heading “Manage Cookies”. Click onto the option you prefer, either stopping cookies being installed, or notifying you of them. From the list provided, click onto the programme, which your computer uses. If this is not shown on the list, click on the “help” heading on the bar at the top of this page, search for information on “cookies” – an explanation of how to delete cookies will appear, then follow these instructions.

B) IP Address

Your browser generates other information, including which language the site is displayed in, and your Internet Protocol address (“IP address”). An IP address is a set of numbers which is assigned to your computer during a browsing session whenever you log on to the Internet via your Internet service provider or your network (if you access the Internet from, for example, a computer at work). Your IP address is automatically logged by our servers and used to collect traffic data about visitors to our web sites. We do not use your IP address to identify you personally but these logs may contain unique identifiable information left by your computer.