This book includes the extended abstracts accepted for the 7th Historic Mortars Conference (HMC 2025), highlighting research on the technology and characterization of historic mortars, the conservation and restoration of masonry and archaeological sites, the design of repair materials, and methods for their testing. Special emphasis is placed on heritage-inspired building materials for sustainable architecture, drawing inspiration from traditional formulations to develop innovative applications. This approach has fostered interdisciplinary exchange among archaeologists, architects, restorers, scientists, and other professionals, bridging advanced research with practical restoration and industrial development.