Reviews

I've been working with NSS for over twenty years, and they’ve consistently delivered exceptional service. What sets them apart is their genuine family feel and the continuity of their team—I've dealt with the same friendly and professional staff throughout, which is incredibly reassuring. Their sales and customer service teams are always polite, knowledgeable, and efficient. The installation crew is respectful, tidy, and consistently delivers high-quality results. Highly recommended for anyone looking for reliable, professional service with a personal touch.

We cannot recommend National Security Systems highly enough. From start to finish, their service has been nothing short of exceptional. As a small charity supporting D/deaf and disabled residents across Islington, it’s crucial that all our sites are safe, secure, and accessible. National Security Systems delivered on every front. Their customer service is outstanding – responsive, respectful, and always willing to go the extra mile to understand our specific needs. Their team treated our staff, volunteers, and service users with professionalism and care throughout the installation process.

We've used NSS for many years and cannot fault them. At short notice, they were able to scope, quote and install a new wireless alarm system for us in a week's turnaround. Incredibly pleased with the new solution and the work carried out.

The admin from NSS contacted me to confirm booking the day before my appointment with rough ETA for the engineers. The installation team arrived on time, did a quick survey and made some recommendations on placement of cameras and recorders. They quickly and professionally completed the installation, help me set up the app on my devices to be able to view the CCTV live and recorded footage remotely and helped clarify some of my questions. Very friendly and knowledgeable. Highly recommend this company. It's the 2nd job they've done for me. Fantastic yet again! Phone support brilliant too!

My install engineer was Jay who was on time as scheduled. He fully explained what was going to be installed and exact locations. Once complete, I was given a full walk through on the system and how it’s used. 5* service.

Very Professional