How to grout tile
March 15, 2026
Grouting is the final step that brings a tiled wall or floor together. It fills the gaps between tiles, helping keep moisture out while giving the surface a neat, finished appearance. It might look like a small job but doing it properly makes a big difference to both the look and durability of your tiles.
Step 1: Prepare the surface
If you're grouting a newly tiled wall the tile adhesive must be completely dry. This usually takes around 24 hours, but always check the instructions on the adhesive you used. Grouting too early can cause tiles to shift or weaken the bond. Also, don't forget to remove any tile spacers that remain between the tiles.
Brush or vacuum the gaps to remove dust and dried adhesive. Clean gaps allow the grout to bond properly. If the tiles are dusty, wipe them lightly with a damp sponge and allow them to dry.
Step 2: Mix the grout
Add the grout powder to a bucket and mix with water according to the manufacturer’s instructions. The grout should be smooth and thick, similar to the consistency of peanut butter. Avoid making it too runny, as this can weaken the finished grout and make it more difficult to apply. Only mix enough grout for 20–30 minutes of work, as it begins to set fairly quickly.
Step 3: Apply the grout
Using a rubber grout float, spread the grout diagonally across the tiles. Press firmly to push grout deep into the gaps. Work across small sections at a time, ensuring every gap between the tiles is fully filled. Once the gaps are filled, hold the float at an angle and scrape off as much excess grout from the tile surface as possible.
Step 4: Clean the tile surface
After about 10–15 minutes, wipe the tiles with a slightly damp sponge to remove excess grout. Move the sponge diagonally across the tiles and rinse it frequently. The aim is to clean the tile surface without pulling grout out of the joints. You may need to repeat this step a few times as the grout continues to firm up.
Step 5: Remove grout haze
Leave the grout to cure according to the manufacturer’s instructions, typically around 24 hours. Avoid walking on floor tiles or exposing the area to water during this time.
Once the grout has fully dried, you may notice a light grout haze on the tiles. This is normal. Buff the tiles with a clean, dry cloth or microfiber towel to restore their shine.
Step 6: Seal the grout (optional)
In bathrooms, kitchens, or other areas exposed to moisture, applying a grout sealer can help prevent stains and water penetration. This extra step helps extend the life of the grout and keeps it looking cleaner for longer.
Grouting is not only a functional part of the tiling process. It’s also the final aesthetic step, giving your tiled surface its finished look. A well-done grout job can make a big difference to the overall result.