National Security Systems Group Reviews 5

TrustScore 4 out of 5

4.1

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4.1

Great

TrustScore 4 out of 5

5 reviews

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Rated 5 out of 5 stars

Excellent service

Vin helped me get my alarm system working after a change in wifi caused several problems. He was patient and explained things clearly. I would definitely call on him again and recommend his company.

18 November 2025
Unprompted review
Rated 5 out of 5 stars

I am really glad I used National…

I am really glad I used National Security Systems to install a security system in my home. They showed up on time and were very clean. The installer was extremely smart and explained how to use my new system very well.

24 September 2024
Unprompted review
Rated 2 out of 5 stars

Overcharging on after sales/…

Overcharging on after sales products .wanted to charge me £380 for 2 pet sensors and 2 door sensors . Would not give me overide key . Got it done eventually with another company for half what they wanted .not very professional at all .

7 February 2023
Unprompted review
Rated 5 out of 5 stars

System workings quite well

National security system group is user-friendly for people to use. They send you the whole thing you need for self-installation. It is easy to install, but if you have any problems, customer service is great. You can supervise everything on the web, which is convenient because you can active and deactivate your alarm on your mobile. You can customize your settings so that you get emails regarding your alarm system so you are aware of what is going away on at home when you are not there.

I had Nssg for the past 1.5 years and I must say, I feel much safer knowing I have an alarm system. It's a bit more costly than competing security systems, but I've been secure for the past 1.5 years. So maybe it's worth the price. Give it a try if you're looking for a trusted alarm system.

3 January 2014
Unprompted review

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