Heln64

Hi I am looking for some advice on how we can update our current system. We have had the. CnM system installed since 2011 but now some of the cameras are no longer working. Would we be able to just replace the cameras and hard drive without having to rewire with new wires throughout the house? Can anyone advise please.

Thank you for replying wouldn’t want to pay anymore than £300 for a full system .