Interior vs. Exterior Basement Waterproofing

Interior systems usually focus on collecting and managing water that reaches the foundation, often using perimeter drainage and sump pumping. See interior basement waterproofing.

Exterior work addresses the outside foundation surface and surrounding drainage, often with excavation, waterproofing materials, and drainage improvements. See exterior basement waterproofing.

Consider the water path, access, condition of the foundation, drainage needs, disruption, and the scope required to create a reliable system. A site-specific evaluation is more useful than choosing by method name alone.