We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies as per our policy which also explains how to change your preferences.

Endorsed by

Which

?

Trusted Traders

National Security Systems Group

Logo on white
Opening Hours
Today - 09:00–17:00
  • Monday 09:00–17:00
  • Tuesday 09:00–17:00
  • Wednesday 09:00–17:00
  • Thursday 09:00–17:00
  • Friday 09:00–17:00
  • Saturday - Closed
  • Sunday - Closed
Profile thumb nss logo

4.9

13 Reviews

About

At National Security Systems, we are proud of our reputation as dependable and progressive security specialists.

Since forming in 1995, we have quickly established ourselves as one of London’s leading security systems providers thanks to our ability to deliver first-class security solutions and a friendly, personalised service. We can provide you with every type of commercial and domestic security system and products you may need; including Burglar Alarms, CCTV, Access Control and Door Entry Systems.

While our technical expertise and knowledge of security principles means we can offer state-of-the-art, reliable solutions; It is our dedication to customer care that sets us apart from the rest. We appreciate you need to get the best value for your investment and need a security system that is effective and reliable, and can be installed and operated with minimum disruption.

What we do

  • Alarm and security equipment installers

    • Alarm installation
    • CCTV installation
    • Access control
    • Door entry systems
  • Security equipment suppliers and manufacturers

    • CCTV & video equipment
    • Burglar alarm systems
    • Intercom systems

Customer reviews

Reviews summary

4.9
13 reviews
Customer Service
4.9
Quality
4.9
Value
4.8
Sort by
Absolutely fantastic look no further
Customer Service
Quality
Value
Really cannot praise they guys enough they went above and beyond on the job to exceed my needs and expectations. Workmanship is top quality and equipment is fantastic quality. Thanks guys
Customer in Greater London22/11/2018
Professional and impressive
Customer Service
Quality
Value
Fitted a new alarm system in our new office block Great professional job highly recommended - all well installed and explained
Michael G07/11/2018
Cctv instalation
Customer Service
Quality
Value
NSS did a great job for us. They went through all the details and listened to everything we wanted. Both the workman were polite and worked with care and precision. The cables and cameras are all so well fitted that you cannot even see the cables. They provided a training session and helped with the setting up of the apps on our phones. A really truly outstanding service. Nothing was too much trouble from the start to the end and the entire team are very professional. I would have no hesitation in recommending NSS.
Which? Trusted Traders Consumer16/02/2018
Excellent Top class service
Customer Service
Quality
Value
Used NSS recently for some works. Everything from initial visit, estimate, execution and after-sales was excellent.
AshokB15/02/2018
Efficient, professional team
Customer Service
Quality
Value
All members of the team I met with were efficient, professional and courteous for alarm fitting. They were all knowledgeable and open to any trouble-shooting questions. Evidently with their own support team behind the scenes, it was good to know all queries covered. Good turnaround. Above all - Good teamwork from start to finish. All in all a good job, very well done.
Anonymous01/02/2018
Professional, Informative & Courteous
Customer Service
Quality
Value
Thoroughly impressed with the work carried out by technicians Jay & Mayan. Both chaps were professional, informative and courteous whilst carrying out work at our property. I have absolutely no hesitation in recommending NSS (namely the world-class customer service provided by Jay & Mayan) to my friends, family and clients. Thank you once again.
RatherNotDisclose24/01/2018
Alarm Fitting
Customer Service
Quality
Value
The company provided an excellent quick service with exactly what we needed. Work was completed efficiently and training provided was clear. Thanks very much
Paulie13/12/2017
Great service & very professional
Customer Service
Quality
Value
Without any hesitation I would recommend this firm, I would add that I can be quite a difficult customer and changing my mind several times before the installation (and even during) but nothing was too much trouble. The work was carried out professionally. We were kept fully up to date up to and during our installation, I needed to add another phone to my alarm system so called the support team and five minutes later it was all done. Truly fantastic. Thank you, NSS team.
Sandhu22/09/2017
Amazing team and excellent service.
Customer Service
Quality
Value
We are very pleased with the service we have received from NSS team. Vin has been very prompt with everything we have requested and provided excellent support. From the installation guys- Mayan/Jay, admin support Bhavisha, to technical support team, they have all been a pleasure to work with. A great team! Thank you all for your hard work.
Geeta Vekaria19/09/2017
Amazing professionals and people!
Customer Service
Quality
Value
Jay and Rohit did an amazing job! They made sure that I was kept informed about every step of the work and they both went out of their way to make sure that we were 100% happy with what they were going to do. In addition to being highly skilled and professional, Jay and Rohit are really amazing and friendly people and we are very grateful that they were the ones to fit out alarm! Thank you so much!
Leena15/10/2015