Abstract: Embodiments presented provide a modular repair enclosure for repairing or sealing leaks or potential leaks in a pipe. In some embodiments, the modular repair enclosure comprises three or more interchangeable enclosure sections that, when assembled around a section of pipe, seal the section of pipe and provide containment for any leaks in the section of pipe. The use of three or more interchangeable enclosure sections allows much thinner materials to be used to construct enclosure compared to a 2-piece enclosure, and also results in much less wasted material. Such an arrangement allows significant cost savings to be realized. These interchangeable enclosure sections can also be pre-manufactured and stocked in inventory, allowing for much faster response times to make the repair on a leaking pipe, where conventional methods would require custom manufacturing.