Your local Security, TV & AV System Installation company serving Hertfordshire & London. 

Contact us to see what how we can improve your home or business premises Security or Entertainment systems.

LJS Security systems intruder alarms st albans
safe contractor approved ljs systems ltd

Hertfordshire, Essex and London’s Local, Friendly Security System Installers


If you are looking for CCTV Hertfordshire or any security services across Hertfordshire, Essex and London then you’ve come to right place! LJS Systems provide a wide range of security services across the region and are on the areas leading supplies of CCTV Systems & alarms.With a strong background in providing the latest and most advanced security systems the team at LJS Systems can provide your home and workplace a complete CCTV & Alarms Security installation service.

Our security experts can design a system that’s tailored to your specific needs we can incorporate security features such as Door Entry Systems, Access Control Systems, Intruder Alarms Systems, CCTV Systems, TV Systems & Audio Visual Systems. We provide full installation on all of this security equipment as well as providing ongoing maintenance if it’s required. Based in Hoddesdon in Hertfordshire we provide security services to the whole region and this incorporates north London.

Reliance and local LJS Security have the both the skill set and knowledge base to provide you the high standards of service that you would expect when working with CCTV and security products. We are committed to providing only the highest quality service for the best value for money in all aspects of:

·         CCTV

·         Door Entry

·         Access Control

·         Intruder/ Burglar Alarms

·         TV/Satellite

·         Audio/Visual Installation

We offer our security services to the domestic, commercial and public sectors so whether its a domestic house, public sector building or a commercial premises LJS Systems have got you covered. With installation overseen by a team that have many years experience working in a wide range of property types installing a range of alarms.

Please feel free to contact our CCTV & Alarms security team with any queries regarding security system installation, design or maintenance and TV and AV System installation. We offer free no obligation advice on how to secure your home or business and advice on how to improve your homes entertainment systems. All quotations are completely free so call us anytime to book your free survey.


LJS Systems offer a comprehensive service which includes a no obligation site survey where we will take all necessary information required in order to design a system that will meet the clients requirements


We only execute the highest quality of work which is why we guarantee all of our installations


In order to maintain a systems lifespan systems need to be maintained properly. We offer reactive and planned maintenance for all systems. Block/Flat management company? We can maintain all of your communal services including CCTV, TV/Satellite, Door Entry & Access Control systems


We are able to offer our expert services to enhance the security of your home or business the Hertfordshire area throughout; Tring, Berkhamsted, Hemel Hempstead, Watford, St Albans, Hatfield, Potters Bar, Cheshunt, Welwyn Garden City, Knebworth, Hitchin, Letchworth Garden City, Royston, Buntingford, Standon, Bishop’s Stortford, Sawbridgeworth, Wigginton, Aldbury, Chipperfield, Red Bourn, Harpenden, Sandridge, Bushey, Croxley Green, Abbots Langley, Bovingdon, Shenley, Borehamwood, Goffs Oak, Tewin, Whitwell, Great Offley, Knebworth, Walkern, Benington, Dane End, Hinxworth, Ashwell, Sandon, Royston, Barkway, Throcking, Buntingford, Westmill, Little Hadham, Ware, Great Amwell, Hoddesdon, Perry Green and many more of the surrounding areas. 

We’re experts in CCTV Security, Intruder alarms, Door Entry systems and Access Control Systems. You can find out more just here and get a quote just here Our CCTV Security Systems are especially useful and you can find out more just here

  • I was very pleased with the speed and promptness of the attendance and the work carried out. I was given all the information that I requested and a full explanation of the work carried out. The guy was extremely helpful, personable and worked efficiently to resolve the problem. I would use them again with no hesitation. Customer in Enfield

  • From the initial contact about the services provided right through to the completion of work a month or so later, Lewis was 1st class! Friendly, punctual, extremely thorough and professional. The quality of work carried out was exceptional and nothing was too much trouble. Wouldn't hesitate to recommend Lewis to anyone who asked. The fact I will be getting him to do a few more bits in the future is testament enough. 1st class service! Customer in Bishops Stortford

  • LJS Security was recommended to me. LJS's work was of the highest standard, reliable, tidy and trustworthy. The products LJS used are quality, viewing and monitoring my house from my tablet are crystal clear pictures. I would not hesitate recommending LJS Systems. They are a very reliable and honest company. Customer in Watford