Abstract: Kits for and methods of repair, maintenance and substantial color-match of existing cementitious materials are disclosed. A kit for repair, maintenance and substantial color-match includes a plurality of materials including: a plurality of cementitious powders for preparing a base cementitious mixture comparable to a base of the existing material either for substantially matching a user-selected color of, repairing the existing material or both; a plurality of pigment oxides for refining the base mixture into a refined pigmented cementitious mixture having color attributes which substantially match the color attributes of the user-selected color; a quick-setting mortar repair caulk for repairing large cracks in the existing material; a urethane sealant for repairing voids in the existing material; and a catalyzed cementitious powder for preparing a catalyzed cementitious mixture for repairing voids in the existing material.