How To Re-Grout Interior Tiles

Using a grout saw or utility knife, pry out the existing grout between the tile joints, making sure not to chip or scratch the tiles. The adhesive will hold the tiles in place, but be careful not to use too much force as you may knock the tiles loose. Clean out the joints of all dirt and dust with a cloth then vacuum.

Try and find a grout and sealer to match the existing grout colour. If you’re only grouting a small area, you can pick up a little container of pre mixed grout. For large areas follow the mixing instructions on the container.

Wipe off the excess grout in the joints using circular strokes with a sponge. Try and remain consistent with the existing grout levels when shaping the joints. Remove the grout left on the tiles. Allow your grout to dry.

Fig 2. With a grout float, work the grout into the joints.

Apply a solvent or water-based grout sealer to the joints (Fig 2). As long as the tile is glazed it’s ok if you get some sealer on the tile surface, but you’ll need to wipe it off before it dries.

D.I.Y. Hints and Tips

1. Bunnings also offer kitchen and bathroom tiling tool kits.
   Glazed ceramic tiles only require grout joints to be sealed.