About LJS Systems

Who are we?

LJS Systems are Hertfordshire based local security company specialising in a range of Security, TV & Audio/Visual services. Our team of highly experienced security installation experts provide expert advice and support on all our products from CCTV through to alarms Hertfordshire, this includes maintenance on these security systems as well as the actual installation of the security system itself. We work closely with both domestic home owners as well as commercial business owners. We also work with the public sector, and install systems in schools, colleges and hospitals.
Whether its maintaining an existing system or designing and installing a new one LJS Systems have the skills and experience to deliver a high quality service to all its customers.

We provide the highest standards of security services and when you buy a CCTV or alarm system from LJS Systems you know you buying the skills, experience and knowledge to deliver the highest quality of services. We can design a unique and custom made security system, one that will provide you with the latest technology in a easy to use package.

LJS Systems have a wealth of experience working within the security industry and have built up a reputation across Hertfordshire, Bedfordshire and London as one of the region’s leading and most experienced providers of security services. We have are more than just a provider of CCTV & Alarm Systems, we provide a range of TV and audio/visual systems.

We use that experience to our advantage and when it comes to the design of security systems you really are getting the whole package with LJS systems. Once your CCTV, Alarm or security system has been fitted by one our installation team we can provide you with ongoing maintenance and support to make sure your security system is working in full order should you ever need it.

  • We aim to design security systems to meet our customers’ requirements if not exceed their expectation’s and still be on time and on budget.
  • We aim to install every single security system we do as if it were being installed on our own premises and as if we had to look at it every day. We don’t leave a site until we are happy and until we know our customer is happy.
  • We maintain and service systems thoroughly and efficiently using the years of experience we gained in order to find and rectify faults as quickly as we can be saving our customers money on the overall service.

LJS Systems is a friendly, reliable and local Hertfordshire based company with a customer orientated focus, committed to providing only the highest quality security services for the best value for money in all aspects of CCTV – Door Entry – Access Control – Intruder Alarms Hertfordshire – TV/Satellite – Audio/Visual Installation. LJS Systems is committed to fulfilling its customers’ needs and helping them find the system that is most suited to the job and the one that the customer will get the most out of.

Although we are based in Hertfordshire we provide security services across the region and with the wealth of experience we have built up providing CCTV Essex services we have transferred that experience into provide the best CCTV Bedfordshire services.

All LJS security Systems engineers are fully insured and qualified to the highest standards of CCTV & alarm installation maintenance and covered by the LJS Systems industry leading security guarantee.

Why choose LJS Systems for your security solutions?

LJS Systems will always meet the following goals;

  • A high quality of work on all of our security projects is executed at all times.
  • We will always talk the client through all possible options so the client always gets what they feel is best for them.
  • The client will always get best value for money on all equipment from CCTV through to alarms Hertfordshire.
  • The client will be able to call on LJS Systems anytime for technical assistance.

Career opportunities

As well as looking after our client’s needs all over the South East we are also actively looking for new talent, please visit our ‘Job Vacancies‘ page for more information.


  • Diagnosed the problem quickly. Will certainly be having him back to fit new system

    Customer in London

  • 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

  • “LJS Systems were excellent from start to finish. They were helpful when assessing the job, provided a competitive and fair price, were not pushy (like some bigger alarm companies) and always available. All the staff were polite, knowledgeable and genuinely nice to deal with. We had a couple of minor issues (part was missing and another had a fault) but they guys went out of the way to sort them out (coming out on a Sunday to finish install). Really pleased with the outcome and would not hesitate in recommending them.”
    Intruder alarm installation 23/07/17
  • Replacement database and modifications to ACS points. 01/06/17
  • Alarm service 25/05/17
  • New security system. 5/05/17
  • Installed burglar alarm system. 24/05/17
  • Full remote monitoring Alarm for 5 bedroom room house. 21/04/17
  • Installation of burglar alarm. 19/04/17
  • Video Entry System - CCTV - Access Control 01/08/17
  • Door entry/ intruder alarm and Av installations 16/08/17
  • “Alarm had faults to do with batteries, Lewis took care of them all and had to order a specialised battery that took a few weeks but overall happy with the service and alarm is brilliant. Also really like that they can check and sort out many teething problems remotely.”
  • “Really good company to deal with. Always helpful and polite.”
  • “Very fast turnaround, great customer service from owner and his engineers, excellent product. Highly recommend.”

We are able to offer our expert services to enhance the security of your home or business the Hertfordshire area throughout; Loughton, Epping, Buckhurst Hill, Hemel Hempstead, Watford, St Albans, Hatfield, Potters Bar, Cheshunt, Welwyn Garden City, Knebworth, Hitchin, Letchworth Garden City, Royston, Buntingford, Standon, Bishop’s Stortford, Sawbridgeworth, Woodford, Enfield, Harlow, Ongar, Harpenden, Wanstead, Bushey, Croxley Green, Abbots Langley, Enfield, Shenley, Borehamwood, Goffs Oak, Tewin, Whitwell, Hertford, Knebworth, Stevanage, London, Dane End, Chingford, Ashwell, Sandon, Royston, Barkway, Throcking, Buntingford, Westmill, Little Hadham, Ware, Great Amwell, Hoddesdon, Hatfield 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 http://www.ljssystems.co.uk/about/ and get a quote just here http://www.ljssystems.co.uk/contact-us/ Our CCTV Security Systems are especially useful and you can find out more just here http://www.ljssystems.co.uk/2016/05/13/cctv-hertfordshire/