05/05/2026
This is efflorescence. Efflorescence is a white, powdery deposit of mineral salts—often calcium carbonate—that appears on concrete, brick, or masonry surfaces when water dissolves salts within the material and evaporates at the surface. Now, efflorescence isn't necessarily damaging but efflorescence is a sign that your chimney is taking on moisture and thats where it becomes damaging. Eventually the moisture causes spauling. Spauling is where the faces of the brick or terracotta pop off and fall away. Down the road the moisture could end up leaking into your home. Another sign your chimney is taking on moisture is when there is moss and vegetation growth.
All of this can be prevented with some preventative maintenence! Give us a call for a free estimate!
Other services we offer: Sweeps, inspections, chimney certs, liners, installs, masonry repairs, fireguard & chamberguard certified, and more!
(973) 527-4194
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