Tuck point & Masonry Repair



Many older chimneys and fireplaces were built using a softer grade of mortar which was prevalent for the period. Over the years these mortar joints tend to break apart and crumble away as they are exposed to environmental acids and moisture. Expansion and contraction of brick and natural harmonic vibrations also cause these older mortar joints to erode and fall apart. If older chimneys are not repaired or have the mortar joints ground out and refilled (tuck pointing) they can begin to lean and pose a major public safety hazard. 

Damaged Mortar JointsLeaning Chimney

Without the use of specialty tuck point grinders with attached dust control systems, tuck pointing can be an extremely dirty and dangerously dusty repair. We grind out the old mortar joints to a depth of 1 inch to 1 1/4 inch depending on brick or block construction, clean the mortar joints, and repack the joints with a blended mortar of sand, portland cement, lime, and latex acrylic additive for superior bond strength and water resistance. Acid wash and mortar color matching is also available. Typically once the masonry chimney is repaired a masonry water sealant is applied to preserve the chimney and prevent future water damage.

 

Consumer InformationVideo on Tuck point Ask the Chimney Sweep - Waterproofing

Mortar RemovalMortar Joints

Tuckpoint Dust ControlTuck point Dust Control

Department of Health and Safety, Tuck point Dust Control