Repair the joints without giving up sound masonry
Brown Chimney provides chimney tuckpointing in Boston, renewing deteriorated mortar where the surrounding bricks remain suitable for retention. This work is also commonly called repointing. The aim is to remove failed joint material and replace it with a compatible mortar that can function with the existing wall.
Mortar selection is especially important on older chimneys. A hard, unsuitable patch can shift stress and moisture behavior into softer brick. We consider the existing masonry and exposure as well as color and joint profile, rather than selecting a mix only for its appearance.
Open joints can admit water, but repointing should follow an assessment of the full problem. If water is entering through the crown or roof connection, those defects may need separate repair. Where bricks are extensively damaged or the stack has moved, masonry rebuilding may be the appropriate scope.