Water is the biggest enemy of mortar. Not fire, not impact, not age. Just water. Masonry contractors repeatedly identify moisture exposure as the main reason tuckpointing becomes necessary.
When rain hits brick surfaces, some of it runs off, but a portion is always absorbed. Mortar is more porous than brick, so it takes in more water. Over time, this weakens its internal structure. The result is soft, crumbling joints that no longer hold bricks securely.
Poor drainage makes the situation worse. Clogged gutters or improper grading allow water to run down walls or pool near the foundation. This leads to constant saturation of lower brick sections. These areas often require tuckpointing sooner than expected.
Moisture problems are not always visible from the outside. Inside the home, they show up as damp walls, mold, or peeling paint. By the time these signs appear, the mortar damage is already advanced.
Chimneys again are a major risk point. Without proper caps or flashing, water enters easily and accelerates deterioration. Masonry contractors near me Chicago frequently repair chimney mortar because it is exposed from every angle.
Prevention is straightforward but often ignored. Keep water away from masonry surfaces, maintain drainage systems, and inspect mortar regularly. Once moisture starts breaking it down, tuckpointing is not optional. It is necessary to stop further damage.
