A method for detecting and reporting fluid leaks in a distribution network, particularly in condominium water or gas distribution networks, the method providing the steps of: acquiring at a preset rate statistical samples related to the extent of the water flow in input to the network; acquiring a variation coefficient which indicates the characteristics of the samples over a set time interval; comparing the variation coefficient with a preset reference value to identify a situation of fluid leak or of normality within the network; reporting the situation to monitoring devices.