Cut out any loose or damaged mortar and bricks from the brickwork. Rake out the old joints to a minimum depth of 10mm and wire brush away any loose dust. Mix sand and cement to match the color of the existing mortar. Fill the joints flush with the surface and choose a finish style for the pointing, such as bucket handle pointing using a tool or hosepipe, flush pointing by cutting off excess and troweling, weather struck pointing at an angle, or recessed pointing by raking out the mortar.