In today’s rapidly evolving world of technology, security is paramount for both individuals and businesses. One of the most common methods of ensuring security is through Closed-Circuit Television (CCTV) systems. However, with advancements in camera technology and the increasing need for higher resolution and improved features, many existing CCTV systems have become outdated.

The good news is that you can breathe new life into your surveillance infrastructure by upgrading the cameras while keeping the existing cabling intact. In this blog, we will explore how to upgrade an existing CCTV system with modern cameras without the hassle and cost of rewiring.

Evaluate Your Current CCTV System

Before you begin the upgrade process, it’s essential to assess the current state of your CCTV system. Determine the number of cameras, the type of cables used, the recording equipment, and any existing limitations. Identifying these factors will help you plan the upgrade more effectively.

Also think about what you might like to change. Has anything bothered you about the previous system, write it all down and see if anything stands out that you could improve.

Understand the Benefits of Upgrading

Upgrading your CCTV cameras can bring several advantages:

a) Higher Resolution: Modern cameras offer higher resolutions (e.g., 4K) compared to older analog cameras, providing clearer and more detailed images. They also come at a much lower price than a few years ago so you can get a good spec for not much extra.

b) Enhanced Night Vision: Most new cameras incorporate infrared technology, allowing for superior night vision performance.

c) Wide-Angle and PTZ Capabilities: Modern cameras often come with wider viewing angles and Pan-Tilt-Zoom (PTZ) functionality, which enables more extensive coverage and remote control.

d) Improved Analytics: Some modern cameras have built-in analytics features, such as motion detection and facial recognition, providing more efficient and intelligent surveillance. Advances in AI technology has meant that many can differentiate between a human or a car or an animal. This means much less false positive notifications.

Compatibility with Existing Cabling

One of the main concerns when upgrading a CCTV system is the existing cabling infrastructure. However, with advancements in camera technology, it is often possible to use the same cables and connectors. Modern IP cameras, for instance, can be easily integrated into your existing network using Power over Ethernet (PoE) technology, which delivers both power and data through a single cable.

For systems using coaxial cables, there are hybrid cameras available that can transmit high-definition video over the existing coaxial cabling, saving you the cost of rewiring. There is a great selection of cameras which run on analogue too with great features to upgrade your existing system. Hikvision Turbo range has some great features such as Strobe and Audio alarms, Colorvu, Pan, tilt & zoom and Acusense.

Colorvu CCTV cameras in black and white

Choosing the Right Cameras

When upgrading your CCTV system, it’s crucial to select cameras that suit your specific needs and environment. Consider factors such as:

a) Camera Type: Choose between dome, bullet, or PTZ cameras based on the installation location and required functionalities.

b) Resolution: Opt for cameras with higher resolutions to capture clearer images and video footage.

c) Night Vision: If surveillance is required during low-light conditions, infrared night vision capabilities are essential. Now we can also add Colour vision for day and night too.

d) Weather Resistance: For outdoor installations, ensure that the cameras have adequate weatherproofing to withstand various environmental conditions.

e) Positioning: While we’re adjusting, do you want to change any aspects of the existing system? Did it cover everything you wanted it to? Could we improve the range of resolution or change the angle/design of camera?

New Features Available

There are a great range of new features which may not have been available when you originally bought your existing system.

  1. Colour Vision 24/7 – exactly what it says, the cameras can be configured to have colour vision 24 hours a day.
  2. Strobe and Audio – A great security feature which means that if someone approaches the camera, a strobe and audio alarm will trigger which will make the person look towards the camera, enabling a better picture to be taken,
  3. High Resolution – 4K or up to 12MP available in bullet, turret, dome or PTZ.
  4. Thermal imaging
  5. Acusense – Reduces false alarms by embedding deep-learning algorithms into select security cameras and video recorders to automatically detect humans and vehicles through real-time video analytics and push instant notifications to users’ mobile devices.
  6. Monitoring & notifications via an easy to use app.
  7. Completely waterproof cameras.
  8. Fixed and varifocal lens options.



Upgrading the Recording Equipment

Along with upgrading the cameras, consider updating the recording equipment as well. Modern Network Video Recorders (NVRs) offer advanced features such as higher storage capacities, remote access, and better video compression technologies. NVRs are designed to work seamlessly with IP cameras and can provide a more efficient and reliable recording solution.

We can also upgrade the DVR (digital video recorder) for analogue system too. We can add some great new features such as Acusense, upgrade the resolution limit of the cameras and make the hard drive bigger. Bear in mind that with better compression rate, you should get a better memory with a new system too.

Professional Installation and Testing

While upgrading the cameras might seem like a straightforward process, it’s best to seek the assistance of a professional security company. We can ensure that the new cameras are installed correctly and that the system is configured properly. Also that everything is in compliance with security standards.

Additionally, thorough testing should be conducted to verify the system’s functionality and to address any potential issues.

vandal dome camera with images being shown on smartphone - Smart House Scotland


Upgrading your existing CCTV system by replacing the cameras with more modern ones can significantly enhance your security measures without the need to change the cabling.

With higher resolutions, improved night vision capabilities, and smarter features, modern cameras offer an excellent solution for your surveillance needs.

Remember to evaluate your current system, choose compatible cameras, and seek professional assistance to ensure a seamless upgrade process. With a revitalized CCTV system, you can rest assured that your security is in good hands.

We offer a range of security products such as CCTV, door access and wireless alarms – all designed to make your life as easy as possible! Get in touch to arrange a site visit and we can go through your options!