Repoint: Fixing joints, not redirecting

To repoint in everyday English is to make a point again, to press an argument or direct someone's attention back to an idea. You might repoint a debate, or repoint someone toward the original topic.

In construction, repointing is the repair or renewal of pointing, which is the mortar that sits in the joints between bricks, stones, or other masonry units. Over time, pointing deteriorates from weather, frost, settling, and traffic vibration. When the mortar cracks, shrinks, or crumbles away, water enters the wall and can damage the masonry itself. Repointing means chiseling out the failed mortar and replacing it with fresh mortar of matching color and composition, then tooling the joint to match the original profile.

The historical confusion arises because pointing in masonry is itself a metaphorical term. When masons finish a mortar joint, they use a pointed tool (called a pointer) to shape and compact the mortar into its final profile, making it pointed or beveled. The craft of applying or finishing these joints became known as "pointing." So to repoint is literally to point again, to restore the joint as it was when first built.

This technical meaning is stable and unchanged in construction. Masons, bricklayers, and restorers use it consistently to describe one of the most common and visible maintenance tasks on masonry buildings, from historic stone structures to modern brick facades.