A CCTV drain survey involves using a small, waterproof camera that is fed into your drainage system to inspect the condition of your pipes. This method allows professionals to identify any blockages, damage, or potential issues without having to dig up or disturb your property. The camera footage is then reviewed to provide a detailed assessment of the drainage system, including any cracks, leaks, or collapsed areas. It’s an efficient, non-invasive way to diagnose problems within your drains.