National Security Systems Group

We have had an excellent experience with National Security Systems (NSS) and cannot recommend them highly enough. Their communication throughout the process was exceptional—clear, prompt, and professional at every stage. The quality of their work is outstanding, with a team of highly skilled professionals who ensured everything was completed to the highest standard. Their attention to detail and commitment to excellence truly set them apart. What really impressed us was their after-sales service. NSS has been incredibly supportive, making sure all our needs were met even after the installation. Their dedication to customer satisfaction is second to none. We were so pleased with their service that we have since used them again at another site, and we are already planning to use NSS for our next project as well. If you’re looking for a reliable and professional security system provider, NSS is the perfect choice! Thank you, NSS, for your fantastic work!

I recently had an issue with my CCTV system and contacted NSS for assistance. Their team responded quickly and handled the problem with great professionalism. The engineers were knowledgeable, efficient, and ensured that everything was fixed to a high standard. I was particularly impressed with their attention to detail and commitment to resolving the issue. I would highly recommend NSS for anyone in need of reliable and expert service. Thank you for the excellent support!

NSS really are the very best company we have ever come across for residential security systems. They are extremely accessible and responsive when we have any issues or questions. We had our original security system installed in 2006 - 17 years ago and they have serviced it ever since with prompt efficiency. Whenever minor faults have developed, they are very responsive at all hours and can access the system remotely to address or isolate any faults and arrange a date if an engineer needs to attend. We have dealt with Ash, Jay has visited many times, Randeep, Harry and Vin (who now deals with Corporate security) and also Gita in the NSS Admin office. This week, Jay and Harry came to completely upgrade our security and fire alarm system (also changing it from Analogue to WiFi for emergency connection alerts to Southern Monitoring) and check every single aspect of the installations around the house. As ever, they were prompt, efficient and as unobtrusive as their multiple tools allowed. They completed the job within their estimated time and took us through the changes to our entry/exit panel and explained everything very clearly. We cannot recommend this company highly enough. In 17 years with them, we are not aware of any staff changes; any time we have had to call out an engineer or have an annual service, we can be certain that it will be somebody familiar to both us and with the layout of our home. We trust them implicitly.

I have been using NSSG for my home alarms for over 15 years now and on this occasion they upgraded my entire alarm and CCTV system. The service we received from the engineer (Jay) this week was beyond fantastic, on being faced with a problematic fixed wall panel in the kitchen which required a CCTV screen to be fitted to it. Jay managed to gain access to an area behind the panel which seemed impossible to reach and with no damage or signs of entry in order to connect the screen. Another great example of thinking out of the box which is very much the NSSG hallmark. Over a period of two days Jay completed a full alarm & CCTV upgrade, adding various sender units behind wall-mounted TV's, extra CCTV cameras, door shocks and contacts including a roof beam and the list goes on. On viewing the finished work, it is like everything was always present - their work is always neat, clean and very tidy. From a technical point of view, I have never found anyone better when it comes to complete security installs (alarms / CCTV) and they can even design a system tailored to your specific needs. Their engineers are always polite, professional and nothing is too much trouble for them. In regards to aftercare, the customer service team, the technical help desk team are truly some of the nicest most helpful genuine people you will ever encounter. I would highly recommend Vince and his team and from my experience of using them, there is simply no one better than NSSG!.

Engineer turned up on time. Polite, clean and tidy. Explained what he was going to do and checked in with me throughout. Cleaned up after himself as well and was quick and efficient. Will definitely use them again.

Extremely pleased with a very professional and efficient service carried out with pleasant manner. A very professional service.

We have just moved to a new house and inherited the existing alarm system which was supplied by NSS some years ago. Having transferred the maintenance arrangements we have now upgraded the system to a modern control unit and alarm panels. The price quoted was very reasonable and the work done over three sessions by a great team who communicated well and explained what would be dealt with on a subsequent visit. The upgraded system is now fully up and running and we are very happy with the work done.

Finefair have been using NSS for our head office and residential properties over the last 6/7 years. NSS are our go-to company for any CCTV and alarm jobs. All of our jobs no matter how big or small are all dealt with efficiently and professionally. Thank you to team at the offices, who are extremely helpful and courteous when booking in appointments, services, and monitoring visits. I would also like to take this opportunity to thank Dee, Hitesh and Rohit for there attention to detail and professionalism.

My old alarm system was becoming problematic. NSSG provided competitive quotes for the various options. During the installation (which was professional and fast) I changed my mind about the number of sensors I required and they managed to include it in the installation at a very reasonable price

If you're looking for prompt, professional and reliable service, look no further! Had my security system replaced by NSS today. Not only did NSS call to offer a cancellation, J arrived on time, explained the steps and completed the work in an organised manner. Was impressed with J's conduct and patience. NSS followed up the same day to ensure satisfaction. I don't expect any problems but know where to go should I need help. Used NSS before and they always deliver.