Since forming in 1995, we have quickly established ourselves as one of London's leading security systems providers. Commercial National Security Systems Group provides security systems and alarm systems products in London. We are NSI Gold Company offered including fire alarms London, commercial alarm systems, intruder alarm London, CCTV systems installation and access control systems. We appreciate that 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.

Serviced Areas

  • Chingford, South Woodford, Woodford Bridge, Buckhurst Hill, Loughton, Clayhall

Contact Details

  Website
  City Harold Wood
  Postcode RM3 8SB
  Phone Number 01708 370643
  Tollfree 0800 0836 400

  • I would recommend this business

Hello, I'm a new business owner and having a trusted alarm system fitted has always been something I needed to have. From the start to the end of the NSS's service, I've been so pleased with everything the guys here has done.

Value for money
Service & support
Quality
Location
Overall ratingExcellent

  • I would recommend this business

NSS has the best 24hr technical support out there. No matter what time of day it is they answer or call back within minutes. The problem is always sorted and the engineers on call are always nice and friendly even if they have been woken up in the middle of the night.

Value for money
Service & support
Quality
Location
Overall ratingExcellent

Customer Testimonials

Excellent quality service. Very quick to respond and great support service.


Cannot fault the services provided by NSS. I was introduced to NSS on the recommendation from a friend and the engineers that installed at my house randeep and hitesh were friendly and very courteous. Thanks


Exceptional service and wonderful staff ! All security requirements were fulfilled swiftly and professionally.

Social Activity

Take a look at crime stats in your area... https://beta.met.police.uk/your-area/
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Control your Home from anywhere in the world with our Home Control+ application. Get in touch to find out more. 0800 083 6400 I www.nssg.co.uk National Security Systems Group
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Everyone at NSS would like to wish you a Merry Christmas! It's been a fantastic year and we can't wait to tuck in to all the food! 0800 083 6400 I www.nssg.co.uk National Security Systems Group
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If you have ever posed the question: "How do I secure my home / business against theft or burglaries?" then look no further.. www.nssg.co.uk
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Instant barrier between intruders and your family, as well as property contents.. 0800 083 6400 I www.nssg.co.uk National Security Systems Group
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From Our Website

At National Security Systems, we are proud of our reputation as dependable and progressive security specialists. Since starting in 1995 as Sole trader and formed in 2011 as Limited company, 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. 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.


It may be clichd, but people always think 'it won't happen to me' when it comes to thinking about intruders. That's not because everyone feels like they are prepared and secured, but because more often than not the notion of burglary seems unreal or the content of newspaper stories. But the people in those articles are people just like you. Not taking the time to even think about your home security can be detrimental to you, your personal belongings and of course the people you love. Overestimating how safe your home security levels are can easily lead to a level of misplaced complacency in how you use your home.


The modern world presents commercial property owners with serious security challenges. Vandals and burglars are just some of the security threats that can target your property and deliberately put your company, staff and customers at risk. But with a state-of-the art security system from National Security Systems, you can protect your premises and place intruders outside of your business where they belong. For over 15 years, we have provided security systems for many different businesses in and around England, from restaurants, fast food outlets and shops to corporate offices, warehouses, public buildings and high-security entities such as banks and jewellers.


Your business is your livelihood on which you, your staff and your future depends. It stands to reason that you want to safeguard it and protect is from unwanted and unpermitted access, prevent vandalism and burglary and stay on top of this process. The best way to do this is to invest in a quality security system. At NSS we are qualified and experienced security experts who frequently provide high quality security systems London businesses have benefitted from time and time again. As a long standing and trusted alarm company in London and the surrounding area, our clients have confidence in us to understand their security needs, recommend and design appropriate systems, install them and provide them with long term aftercare services.


CCTV security systems is not just for reality crime shows and big busy businesses; home CCTV security systems is becoming ever more popular as a real deterrent. It's no longer an expensive and extravagant security measure, especially as NSS provide cost effective CCTV installers London homes can rely on. CCTV security systems act a real deterrent for unruly intruders looking to sneak in to your home and leave without getting caught. Knowing that your image could be caught on camera can be enough for some spineless burglar to retreat.


With NSS as your chosen security experts, you can invest in quality fire protection and signage for your business without the investment being extortionate. With our industry connections, we can supply and install you with all of the fire protection products and services you need, at a reasonable price. Whether you are new to the world of business, moving to a new premises or simply looking to ensure compliancy with the latest health and safety and fire regulations, NSS can offer your business the right level of advice and support.