How to Replace Loose Grout in Floor Tile
The sound of grout crunching underfoot is a sign that there is a problem with your tile floors. The sooner you fix the problem, the less work you need to do. You can replace loose grout in a few simple steps. By fixing loose grout, you can avoid more extensive tile floor repair, such as removing broken tiles. Using the right grout mixture is an important part of the repair process. If the grout has too much water in it, the grout may flake and crumble once again, requiring more repairs. Does this Spark an idea?
Things You'll Need
- Thinset mortar
- Screwdriver
- Multi-tool
- Grout removal blade attachment
- Shop vacuum
- Grout float
- Sponge
- Grout sealer
Instructions
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1
Assess the damage. If necessary, remove broken tiles and reset them in thinset mortar. Allow the thinset to cure before grouting the tiles.
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2
Use a hand tool, such as a screwdriver, to pry out loose, crumbled grout from between the tiles. If you need to replace loose grout around several tiles, use a multi-tool with a blade specifically designed for grout removal.
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3
Clean up any loose debris with a shop vacuum. Hold the nozzle over the cracks between tiles to vacuum up tiny particles hiding deep in the crevice.
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4
Mix grout according to package directions. Do not put too much water in it. Use your finger or a grout float to push the grout into the space between the tiles. Smooth off the top. Wipe any excess grout off the surrounding tiles before it dries with a damp sponge. Allow the grout to dry several hours or overnight.
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5
Apply a grout sealer with the brush that comes with the sealer. Allow the grout sealer to dry before getting the tiles and grout wet.
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Tips & Warnings
Grout comes in several colors. Try to match the shade used on your tile floor so the repair work isn't noticeable.
If you are trying to work grout into narrow cracks, such as those where the wall and floor join, add a drop or two more water to thin the grout mixture.
Wipe any grout off the tiles immediately. It's much easier to clean while it's still damp.
Use extreme caution when using the cutting blade of a multi-tool. Not only is the blade sharp, but if you misjudge the width of the grout line, you may damage the tile.
