This work proposes a novel structured paradigm for digital transformation for Water Distribution Network asset management. The novel framework has been developed by integrating the Digital Twin concept with well-established algorithms and methodologies, to support technicians and water utilities in solving Water Distribution Networks life-cycle management issues. The digital water services, implemented in the WDNetXL/WDNetGIS platform, provide such integration as to support users on specific technical tasks. Two of these services, recently adopted to support real-life asset management design on several WDN, are briefly presented: the Digital Water DMA Analyzer supports the analysis and customization for the design of district metering areas, aimed WDN monitoring and leakage reduction through pressure control; the Digital Water Rehabilitation enables the creation of pipes replacements planning, returning explicit performances in terms of leakages reduction a efficiency.