Efflorescence

White, chalky mineral deposits that appear on brick and stone surfaces when water carries salts through masonry and evaporates, leaving crystallized minerals behind. While efflorescence itself is mainly cosmetic, it signals ongoing moisture problems that can lead to serious structural damage if ignored. Common in Ontario's wet spring conditions and winter freeze-thaw cycles. The white staining indicates water is penetrating your masonry, potentially causing spalling, cracking, or mortar deterioration. Professional cleaning and moisture control prevent recurring efflorescence and protect your masonry investment.