1Inspect grout lines in tiled areas such as showers, floors, and backsplashes.
2Look for cracks, crumbling, discoloration, or missing grout.
3Lightly scrub grout lines to remove surface dirt and reveal problem areas.
4Reseal areas that are intact but are beginning to absorb water.
5Check for soft or powdery grout, which can indicate moisture damage.
6Remove damaged or crumbling grout using an oscillating tool
7Clean up dust and debris.
8Mix new grout according to manufacturer's instructions.
9Apply grout using a grout float, pressing it firmly into joints.
10Remove excess grout from tile surfaces with the float.
11Lightly wipe tiles with a damp sponge once grout begins to set.
12Allow grout to cure fully.
13Apply grout sealer once cured to protect against moisture and stains.