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Intruder Alarms

Studies consistently show that the visible presence of an intruder alarm protecting your home or business premises acts as a significant deterrent to potential intruders and burglars.

But choosing the right intruder alarm system can be a confusing prospect, with many different types of alarm, a degree of technical jargon, various suppliers, differing prices and terms and conditions to consider.

Business Intruder Alarms – Protecting you, your staff and your assets

Whether you have a single unit such as a retail outlet, workshop or office, or you have a more extensive premises with multiple buildings, even across multiple sites, Securus (UK) Ltd offer a range of systems to reflect the level of security that your business requires.

We will investigate your existing security measures, consider your specific security concerns, find out about past security issues you’ve faced, and look at any particular requirements that your insurance provider have specified. Then we will design and specify a robust system that is designed to meet your exact needs, and that will protect your business premises 24 hours a day, all year round, giving you complete peace of mind.

Residential Intruder Alarms – Protecting your home and loved ones

From a studio flat to a large home with extensive grounds, Securus (UK) Ltd can specify and install an intruder alarm system to provide the right level of security that you need and want.

Intruder Alarms – How they work

In their simplest form, Intruder Alarms work by having sensors at each access point to the premises that are triggered whenever someone unlawfully tries to get in through that access point, and by having motion sensors that detect movement within the premises that also trigger the alarm.

However, more complex systems can involve a whole range of different sensors, and can be fully integrated with your full range of security measures such as CCTV, Access Control, Fire and Temperature / Humidly control systems.

Bells Only and Monitored Alarm Systems

There are broadly two types of Intruder Alarm systems. “Bells-only” or “Audible” alarms have a bell or siren that gives a warning to alert you or other people in the vicinity to a possible break-in. This is generally the most basic option for an Intruder Alarm that is suitable for a home, but is unlikely to meet the specifications of a commercial premises insurance company.

Monitored or “Silent” alarm systems may be the same as (or similar to) a bells-only system in terms of the components used, but they give no indication to the intruder that their actions have been discovered. Instead, the system will alert you and/or a central monitoring centre, which can then contact the police on your behalf.

Wired, Wireless or Hybrid Intruder Alarm Systems

Alarm systems no longer rely on physical cables that are laid under floors, in walls and behind skirting boards, as the components of the system can now be connected wirelessly. However, wireless systems will not be suitable in all situations, and you can have a combination of hard-wired and wireless components in what is known as a ‘Hybrid’ system.

There are a number of factors to take into account when specifying the best Intruder Alarm System for your home or business.

Installation Cost

Wireless components tend to be more expensive, but the labour time needed to install a wireless system is around half that needed for a wired system, which makes the installation cheaper. However, if you have a business premises with cable trays, trunking or suspended ceilings then the cabling/labour trade-off will be different.

Running costs

Wireless systems run on batteries that need replacing every two years, and replacement parts tend to be more expensive too. However even a wired system required back up batteries in case of power cuts or other power outage, so there are on-going costs involved with a wired system too.


In the early days of wireless systems, reliability was sometimes a problem, with false activations being a concern. However, with advances in wireless technology in recent years, there is now virtually no difference in the reliability of a wired systems and wireless one (as long as the strength of the wireless signal has been correctly determined to ensure it is fit for your requirements).

Disruption and Décor

With wireless components, there are no ugly cables that have to be fitted around doorways or skirting boards or housed in plastic trunking, and there is no need to have holes drilled through walls to run cables between rooms. This means a much shorter installation time and no or minimal disruption to any existing décor, fixtures or fittings.


One of the key advantages of wireless components is that if the system needs to be changed or extended then it’s very straightforward. On the other hand, adding or changing components on wired systems is more complex, disruptive and time consuming. In addition, if you move home or business premises, a wireless system can simply be removed and taken with you and then used in your new location.

Which is the Best Intruder Alarm System for your Home or Business?

Every situation is unique, but as a general guide we would look to recommend the following:

  • Flat or apartment – A Wireless Intruder Alarm.
  • House or bungalow with new / finished décor – Wireless Intruder Alarm.
  • House or bungalow that is being built from new or is about to be renovated – A Hybrid Alarm System, in which some cabling can be laid under floors, behind skirting boards and set into walls where needed, all of which will be invisible after decoration.
  • Very large property – With an extensive property, especially one with outbuilding such as garages, barns or workshops, a Hybrid or Wired Alarm System may well be the best as the wireless range may not be sufficient to provide adequate coverage at all times.
  • Office or commercial premises – A Wired or Hybrid Alarm System, which uses cable that can be easily routed above suspended ceilings to connect the different components of the system.
  • Industrial building – A Wired or Hybrid Alarm System, where cable that is routed in cable trays and visible trunking is acceptable.

“Securus (UK) Ltd installed our CCTV, Access Control and Intruder Alarm security systems, and they have been an absolute blessing to our company. Rob’s attention to detail and dedication are incredible. He goes above and beyond the call of duty, always making sure we are happy with the product and ensuring we are satisfied with all work carried out.”

Carmen Vicente – Office Manager / PA to the Chairman, Future Group

The Benefits of Using Securus (UK) Ltd

An Intruder Alarm (or “burglar alarm” as they were originally known) is one of the core security systems to protect your home or business premises. At Securus (UK) Ltd, our systems are designed to deter and keep out burglars and other trespassers.

With a wide range of Burglar Alarms & Intruder Alarms for both residential and commercial sectors, and with over 20 years experience in the security business, we have the skills and know-how to help you.

To talk to Securus (UK) Ltd about Intruder Alarm Systems to protect your home or business, call us today on 0800 8044 999.

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Securus (UK) Ltd is a Pyronix Registered Installer