The Michigan Clean Water Public Advocate (CWPA) initiated a water leak pilot program to provide plumbing services to stop supply-side leaks in up to 100 homes in each of two communities. The CWPA recruited a team from the University of Michigan Water Center and Safe Water Engineering to provide an overall program evaluation. This fact sheet summarizes the lessons learned from this project, which are applicable to a wide variety of projects that involve engineers, local, or state agencies working closely with community members, accessing their homes, providing repairs or upgrades, and/or seeking specific behavior changes.