National Security Systems Group

Public evidence profile

National Security Systems Group

Romford
4.940 reviews in the current record
Public profile launch summary

Launch summary

National Security Systems Group

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.

Public review evidenceLast review Review dates not availableSource refresh
Proof pending

Public proof summary

MTT is still building the plain-language proof summary for this profile.

Proof gaps

Visible limitations on this record

3

These are evidence or response-routing gaps, not misconduct findings or paid-placement signals.

No verified credential shownNo verified endorsements shownUnclaimed on MyTrustedTraders

Public profile only

Public profile only. This trader hasn't claimed their profile on MyTrustedTraders yet.

This trader cannot receive quote requests or project invites here until the business owner claims the profile.

Review evidence

Review coverage and highlights

25
Review depth25
Source platforms2
Loaded sample8
Latest dated reviewDates unavailable
Which? Trusted Traders25 reviews · 0.3 avg

I have been with this company for a few years. I know that I will definitely change alarm companies next year. This company started out as great value for money however I had a problem last year where they failed to detect that my alarm was not working correctly for 6 weeks which would have been a breach of my home insurance policy. To resolve this, I had to pay for an upgrade to the system to avoid the fault reoccurring - therefore the solution cost was passed on to the customer. You are only allowed one free maintenance visit a year after which you would have to pay for a call out. This is different to other companies I have been with who did not charge for more than one call out. Also this company tried to charge an extra 2.5% for payment via credit card today. When the January 2018 law change was pointed out, they suddenly no longer accepted credit card payments. I need to have trust in the company who provide security to my home and this has now been eroded.

Customer in Greater London · Which? Trusted Traders0.3

NSS have done an great job with our CCTV and Alarm System. Their staff are very helpful and happy to go the extra mile. I would highly recommend them. We feel safe and secure with their systems in place.

Customer in Essex · Which? Trusted Traders0.3

We have used NSS on a few CCTV and alarm jobs. they always go the extra mile. Very knowledgeable. Highly recommend.

Customer in Greater London · Which? Trusted Traders0.3
Source-named checks

Trust checks and red flags

Public evidence shown
Public review evidenceLast review Review dates not availableWhich? Trusted Traders
Professional endorsements

Endorsements from other traders

0

No public professional endorsements are shown for this profile yet.

Reviews

Customer review evidence

25 total

Source-refresh labels elsewhere show when MTT last checked the record.

Customer in Greater London1.3 rating

Really pleased with the work carried out. The guys were really professional but still personable. Everything was left neat and tidy and explained to me really well before they left. I wouldn’t hesitate to recommend the company to anyone.

Which? Trusted Traders
Customer in Greater London5 rating

I have been with this company for a few years. I know that I will definitely change alarm companies next year. This company started out as great value for money however I had a problem last year where they failed to detect that my alarm was not working correctly for 6 weeks which would have been a breach of my home insurance policy. To resolve this, I had to pay for an upgrade to the system to avoid the fault reoccurring - therefore the solution cost was passed on to the customer. You are only allowed one free maintenance visit a year after which you would have to pay for a call out. This is different to other companies I have been with who did not charge for more than one call out. Also this company tried to charge an extra 2.5% for payment via credit card today. When the January 2018 law change was pointed out, they suddenly no longer accepted credit card payments. I need to have trust in the company who provide security to my home and this has now been eroded.

Which? Trusted Traders
Customer in Essex5 rating

NSS have done an great job with our CCTV and Alarm System. Their staff are very helpful and happy to go the extra mile. I would highly recommend them. We feel safe and secure with their systems in place.

Which? Trusted Traders
Customer in Greater London5 rating

We have used NSS on a few CCTV and alarm jobs. they always go the extra mile. Very knowledgeable. Highly recommend.

Which? Trusted Traders
Customer in Warwickshire5 rating

A professional company with excellent communication skills from initial sales enquiry through to completion of work. All staff were diligent and informative at all times. We were treated like individuals and our needs were listened to at all times. Engineers were tidy, knowledgeable and a real pleasure to have in our property. The aftercare service has been impeccable too. Price and customer service are a great match! We would definitely trust and recommend NSSG team!

Which? Trusted Traders
Sharon5 rating

Vin & Co from NSS were instructed to fit CCTV and a security alarm system at my newly purchased home prior to me moving in. Honestly, best decision I had ever made. They set up all the cables whilst the house was being gutted and did a fantastic job from start to finish. Not only polite but highly professional and honest. Completely transparent and always there to help 24 hours if something goes wrong. This is the peace of mind I needed. The icing to the cake is that they are all just so friendly. I would highly recommend them, their service for installation through to aftercare is second to none. Tech guys are amazing! Thank you for making me feel safe and working with me since mid last year! Ps. Also apologies if I gave you a headache during this process with my demands! Highly appreciated :)

Which? Trusted Traders
Customer in Brighton and Hove5 rating

NSS have now carried out a number of installations for our company. They have bent over backwards to accommodate our needs and are constantly there to guide, help out and advise. I wouldn’t use any other security company going forward as they cannot be more helpful and professional...brilliant company and wonderful people and they are hugely competitive...I cannot recommend them strongly enough.

Which? Trusted Traders
Customer in Greater London5 rating

Before selecting NSS for my burglar alarm, I did a lot of research and got quotes from 6 other companies too. I found the NSS quote competitive. All the companies I got quotes from installed Pyronix branded burglar alarm systems, and the equipment was more or less similar. But it was the customer service that set NSS apart. The main reason I selected NSS was because of the service and knowledge provided by the surveyor, Ash, who came to visit me and subsequently who I dealt with afterwards until installation. I'm very detailed and I have bombarded Ash with so many questions, via email, Whatsapp and calls, and he always gets back to me straight away, he is very helpful, knows his stuff technically and generally a nice guy. Ash is a real asset to the business and I would definitely recommend NSS. If you are able to request which surveyor you deal with, would recommend asking for him.

Which? Trusted Traders
Page 1 of 4
Source profiles

Public platform links

Needs 40 more points

Qualifying Score Detail

20/100

Strict supply qualification uses source spread, review depth, endorsements, credentials, and contactability. Commercial plan state is not counted.

20 of 100 points20%

Strict qualifying threshold: 60 points.

Review platform presence0/25
Reviews 100+0/20
Peer endorsements0/15
Planning history0/10
Verified credential0/10
Active business10/10
Phone number10/10
GapReview platform presence

1 linked review platform found; need 2.

Link more review-platform profiles so homeowners can verify you across multiple sources.

GapReviews 100+

40 reviews and 4.9 average rating; need 100 reviews and 4.0+.

Request more verified reviews and protect your average rating across linked platforms.

GapPeer endorsements

0 endorsements on file; need 3.

Ask traders you have worked with to endorse you from the endorsements dashboard.

GapPlanning history

No planning history is linked to this profile yet.

Link recent planning evidence or architect-backed project history where available.

GapVerified credential

No verified credential on file yet.

Submit a Gas Safe, NICEIC, NAPIT, FENSA, CERTASS, FMB, CSCS, or Companies House verification.

PassedActive business

Operating status is unknown.

PassedPhone number

Phone listed: 0208 472 5553.

Next qualification actions
Review platform presence

Link more review-platform profiles so homeowners can verify you across multiple sources.

View score page
Reviews 100+

Request more verified reviews and protect your average rating across linked platforms.

Request reviews
Peer endorsements

Ask traders you have worked with to endorse you from the endorsements dashboard.

Open endorsements
Planning history

Link recent planning evidence or architect-backed project history where available.

Review score
Planning evidence

Nearby projects

Checking local planning records.