Repointing or tuckpointing, is the process of renewing the external part of mortar joints in masonry construction. This is done by grinding out the old mortar and replacing with the appropriate new mortar. All our grinding is done with a point of origin dust collection system so there is virtually no dust. Repointing deteriorated mortar joints is one of the most effective ways of decreasing water entry into brickwork. This is because the most common means of water entry into brick masonry is through cracked or deteriorated mortar joints.