There is no real outcome to determine which CCTV system is better as each have their own pros and cons. The average cost to install a wireless CCTV system in comparison to a wired camera system would reduce the overall installation cost.
To summarise, to install a wireless CCTV system and wireless cameras range from £450 up to £850 + VAT, dependent on and capabilities and offerings of each CCTV camera option. On the other hand, the installation cost for a wired camera system starts from £800 + VAT.