A master plumber is overseeing which type of project?

A master plumber typically oversees commercial building projects due to the complexity, scale, and specific regulations involved in this type of work. Commercial plumbing systems often require a higher level of expertise, coordination, and compliance with building codes than residential projects. They may involve multiple floors, specialized fixtures, commercial-grade plumbing materials, and larger-scale installations such as complex drainage systems, which are less common in residential settings.

In addition, a master plumber is often responsible for ensuring that all work is performed according to local plumbing codes and standards, which can vary significantly in commercial settings. The supervisory role includes managing other plumbers, coordinating with contractors and architects, and ensuring the project meets timelines and budgets, all of which are more prevalent and critical in commercial projects.

While master plumbers can also work in residential, industrial, and public facility projects, the emphasis in this question is on the type of project that typically calls for their comprehensive oversight and advanced knowledge, making commercial projects the most fitting choice.