Intruder Alarms


red tick.jpgCommercial Intruder Alarm Systems

red tick.jpgResidential Alarm Systems

red tick.jpgWired, Wireless, Monitored, Maintained, HomeControl+ App, Police Response, Insurance Approved

red tick.jpgNSI Approved and recognised installers for Hertfordshire, Bedfordshire, Thames Valley & Metropolitan Police.

According to Home Office statistics 84% of burglars avoid properties with a visible alarm system in place.  Investing in one of our award winning alarm solutions could be the best investment you make for your home or business.

Our Burglar Alarm installations range from small domestic through to large industrial projects. Intruder alarms are the fundamental of ASH Security's product range.  You will find a wealth of information on home security alarms and commercial alarms, advice on system design and wireless alarms, and what to do if you are moving premises or moving into one which already has an ASH Security burglar alarm.

ASH Security are able to offer our clients a wide range of Burglar Alarm systems to suit your individual needs including the latest HomeControl+ App allowing you to connect to your home from anywhere in the word. Our alarm systems are individually designed to meet with the unique needs of your property, we are able to design systems to meet the exact requirements of our customers from wired to wireless alarms security, bells only to monitored, key holder to police response, secure in the knowledge that false alarm management has been taken into account. As part of our customer service we offer free security surveys during which we will undertake a risk assessment of your property and advise of the additional features we feel are required to ensure maximum security to your home or business.

ASH Security are on the Police Authority Lists of compliant companies for:Police Approved.jpg

  • Hertfordshire
  • Metropolitan Police
  • Thames Valley Police
  • Bedfordshire




We only install systems that are fully compliant with all latest European Regulations. Whether your premises are domestic, commercial or industrial, ASH Security will design a bespoke burglar alarm system / intruder alarm system which suits your needs best.

Our preferred system is the Enforcer by Pyronix, Enforcer being awarded ‘Innovation of the Year 2012’ at the Security Excellence Awards, the Oscars of the Security Industry! The latest system available is the HomeControl+ system and has been named as a finalist in the 'Intruder Alarm or Exterior Deterrent Product of the Year' category at the Security and Fire Excellence Awards 2015! 

As a Company, we guarantee all our alarm equipment on new installations for a period of one year (provided the system is maintained annually), so it is not in our interests to fit equipment which we cannot trust to be of good quality and reliability. We only work with leading alarm suppliers.

We have a range of Intruder Alarm Systems including:

Audible/Bells Only Alarm Systems

ashalarmimage.jpgOur bells only alarm package is the perfect solution if you want a burglar alarm that is not monitored for a police response. There is no on-going maintenance or monitoring charge making it a cost effective solution to protect your home. This burglar alarm package comes with a standard 12 months warranty and the option of upgrading at a later stage to add more sensors or even if you decide to have it monitored. Bells only alarms can be offered as either a wired alarm system or wireless alarm system.

HomeControl+ App 

Pyronix Enforcer HomeControl+ has all the features of the award-winning Enforcer alarm, but with even more control over your home security. That’s because with HomeControl+, you can control your home from anywhere in the world.
Whether you’re at work, on holiday, enjoying a summer’s day outside with the kids or meeting up with friends or family, you’ll be able to check the status of your HomeControl+ alarm wherever you are, using an app on your smartphone or tablet.
Available on iOS and Android

Monitored Alarm Systems

Our monitored alarm systems are strongly recommended for both domestic and business premises. ASH Security install alarm systems that are monitored 24/7 by our Alarm Receiving Centre (ARC) – Southern Monitoring. Our ARC is able to receive 24-hour alarm monitoring, this includes Redcare (Standard and GSM) Dualcom and Digital Communicators, and all operated from the latest state of the art digital platforms. Actioning of alarm signals can be to alarm keyholders and where verified to the emergency services. As with bells only monitored alarms systems are available as either a wired alarm system or wireless alarm system.

Police Response Alarm Systems

As an NSI approved installer we are on the list of Police Compliant companies for Hertfordshire, Metropolitan, Thames Valley & Bedfordshire Polices forces. We are able to install, monitor and offer police response on your burglar alarm system. For just a one of fee of £54 + VAT per URN (plus relevant monitoring & maintenance service contract) we can offer you a police response on your alarm system giving you complete peace of mind.

ASH Security can offer the following monitoring services:


DualCom DigiAir® is a groundbreaking wireless digital communicator embracing the long-standing concept of a digi and combining it with the multi-network WorldSIM® as standard.

Using patented technology, DigiAir® sends a signal from the protected premises to the Alarm Receiving Centre (ARC) via a WorldSIM®. This multi-network SIM card can utilise any mobile phone network, offering the best guarantee of radio coverage anywhere in the UK. This offers maximum, reliable performance from its radio path.

  • Dial-capture comes as standard for extended panel compatibility and formats
  • Call costs and phone lines are eliminated, offering an increased margin
  • WorldSIM® is supplied as standard to increase reliability and reduce false alarms
  • Gemini Insight® for instant access to performance stats
  • Unaffected by Next Generation Networks (NGNs)

Digital Communicator

This is a cost effective method of monitoring your intruder alarm system. A unit called a digital communicator is fitted into the alarm and utilises a telephone line to send a coded signal down the telephone line to the "Alarm Receiving Centre" (ARC), who in turn contact keyholders and police to inform them of the activation. Suitable for domestic and small commercial properties.

Note: This monitoring method does not monitor for line cuts. If the phone line is cut or the line is engaged signals cannot be passed to the ARC.

BT Redcare Monitoring

ASH Security are a BT Redcare Approved Installer. BT Redcare offers a secureredcare-approved-installer.jpg form of alarm monitoring. Redcare continuously monitors the telephone line, thereby being able to detect line cuts and faults within seconds. The result is continuous protection, every second of the day, every day of the year. Redcare is fully endorsed by insurers and is suitable for all domestic & commercial properties.

BT Redcare GSM

Redcare GSM offers the highest level of protection you can buy. The BT phone line on which your Redcare GSM operates is monitored constantly and if the line is cut or there is a fault on the line this is signalled to the Alarm Receiving Centre (ARC) within just 40 seconds.

Every two minutes Redcare GSM also checks that the alarm on your property is working, adding another level of security to your alarm system. In the event of an alarm sensor being triggered in your property, it takes just a few seconds for the ARC to be alerted. If this is confirmed by a second zone being triggered, then your ARC can legitimately contact the emergency services and dispatch them to secure your property.

Redcare GSM also benefits from being a ‘dual path’ system. The main BT telephone line on which Redcare GSM operates is the ‘primary path’. Redcare GSM also provides the reassurance of a back up link, a ‘secondary path’, that uses the mobile phone network to communicate with the ARC if, for whatever reason, the primary path fails. You therefore have the additional peace of mind that comes from knowing if intruders enter your property, a signal will quickly be sent to the ARC, and the emergency services alerted


DigiPlus® is a small device that was developed in conjunction with Vodafone that fits between any existing digital communicator and the telephone line providing an improved and robust signalling solution. It is guaranteed to make all existing digital communicators fully compatible with BT’s new 21st Century Network (21CN) as it uses a 300 band modem. By using 0800 free telephone calls for all alarm and polling traffic it provides a fixed cost solution to varying nongeographical telephone number rates used by most UK Alarm Receiving Centres.

ASH Security use the services of Southern Monitoring to monitor our alarms. Southern Monitoring are the largest independent ARC and RVRC in the UK with over 25 years' experience and achieved the first NSI Quality Assurance ISO 9002 certificate. Their high security centres are NSI Gold for Security, Fire and CCTV Monitoring.

Integrated Systems

For reasons of cost efficiency and for great control and flexibility, increasing numbers of clients are seeking to integrate their security systems into one centrally monitored, controlled and networked system. ASH Security have extensive knowledge and experience of integrating different products such as Fire Detection, CCTV, Access Control & Intruder Alarms, into a single networked system. Systems can be controlled manually or automatically, locally or remotely, from one or more terminals. For more information call 0800 9178975

Additional Devices available to complement our alarm systems include:

  • Two way wireless smoke sensor (Smoke WE)
  • Two Way Water Leak Sensor
  • Two Way Wireless Carbon Monoxide Sensor (coming soon)

Free Risk Assessments

No two properties are the same. So we offer a free risk assessment to see what type of alarm system will best suit your needs. Our quotes are based on the risk assessment findings and a variety of information such as property type, number of rooms and access points. On the basis of the assessment a unique specification is prepared of your premises and this is sent to you with your quotation.

Why you should choose and NSI Systerms Silver approved company

  • meet all relevant British & European Standards for technical performance
  • security screen all staff
  • are comprehensively insured
  • are inspected twice a year by highly qualified NSI auditors including random site visits
  • operate a 24  hour call out service and respond within 4 hours to clients
  • complete a thorough security survey of your property
  • install reliable, up to date equipment
  • provide a high level of staff training and supervision
  • issue you with an NSI Certificate of Compliance.

The Police

NSI Works closely with the police, developing solutions in partnership on complex issues, such as the management of false alarms, by operating a Memorandum of Understanding. Monitored intruder alarms installed and maintained by NSI approved companies meet the requirements of the Association of Chief Police Officers (ACPO) and ACPOS in Scotland.

The Insurers

NSI works closely with the insurance industry raising standards and helping to reduce risk, keeping insurance premiums to a minimum. Insurance companies acknowledge this professionalism and frequently specify Systems Silver approved companies.

We have your area covered

We provide Burglar Alarms in Hertfordshire (Ashwell, Baldock, Barnet, Berkhamsted, Bishop's Stortford, Borehamwood, Bovingdon, Buntingford, Cheshunt, Chorleywood, Codicote, Cottered, Harpenden, Hatfield, Hemel Hempstead, Hertford, Hitchin, Hoddesdon, Kimpton, Knebworth, Letchworth, London Colney, Nasty, Pirton, Potters Bar, Redbourn, Rickmansworth, Royston, Sawbridgeworth, Shenley, St Albans, Stevenage, Tring, Ware, Watford, Watton-at-Stone, Welwyn Garden City), Intruder Alarms London (N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14, N15, N16, N17, N18, N19. N20, N21, N22, NW1, NW2, NW3, NW4, NW6, NW7, NW8, NW9, NW10, NW11, EC1, EC2, EC3, EC4, WC1, WC2, W1,W2,W3,W4,W5,W6,W7,W8,W9, W10, W11, W12, W13, W14, SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, E1, E1W, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13, E14, E15, E16, E17, E18, E19, E20), Intruder Alarms Bedfordshire (Ampthill, Bedford, Biggleswade, Cranfield, Dunstable, Flitwick, Houghton Regis, Leighton Buzzard, Lower Stondon, Luton, Sandy), Intruder Alarms Buckinghamshire (Amersham, Aylesbury, Beaconsfield, Bletchley, Bourne End, Buckingham, Burnham, Chalfont, Chesham, Denham, Flackwell Heath, Gerrards Cross, Great Missenden, High Wycombe, Holmer Green, Lavendon, Long Crendon, Marlow, Milton Keynes, Princes Risborough, Prestwood, Richings Park, Seer Green. Steeple Claydon, Stoke Poges, Stokenchurch)

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