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Crack stitching offers a cost effective and reliable method of restoring the stability of cracked masonry walls with minimal disruption to the building or to its occupants. The system is extremely quick and very simple to install. The helical bars extend 500mm either side of the crack and are spaced 300-450mm apart. They provide a strong, effective and permanent stitching repair that can be hidden discretely within the mortar bed joint to conceal the structural reinforcement.