7 Amazing Steps to Apply and Seal Grout on Tile Floors

You might have heard of grout before, but you may not know what it is. Grout is a cement mixture that’s used to fill the space between tiles on floors and other surfaces to make them stronger and more water-resistant. It can be sanded or ground down if necessary for repairs.

If your tile floor has lost its sealant or needs new grout, we’re here with 7 amazing steps to help!

Step 1: Preparation

If you want to remove grout from your tiles for any reason, use a water-soaked sponge or rag and scrub the area gently. Lightly scrub the grout lines with a mixture of water and dish soap before you start.

You can also use a stiff brush or an old toothbrush for this task, and scrub until you’ve removed all of it. Brush the grout out from between your tiles. You’ll be amazed by how much dirt it will remove.

It may take some time to clean off all of it depending on how long it’s been there, but be careful not to scratch anything underneath with the rough side of your sponge or brush.

Step 2: Use Sandpaper

If the grout lines appear too wide for tiling or sealing purposes, use sandpaper to grind them down until they match the width desired. This will make sure everything looks nice before painting or applying a sealant over top.

Grouting should never be done with liquids like paint, sealant, or glues that are intended for use on interior walls.

Step 3: Use the Right Tool

Mix up enough fresh grout material (following manufacturer instructions) then put some onto an old dinner plate so that it is ready for application later.

Use a trowel to mix up the grout with water until it’s at a consistency that is easy for spreading. Use your hands or spatula to apply onto all areas where there are cracks or breaks on tile floors before sealing everything over top of this step.

Use your trowel to apply a thin layer of wet mortar across one section at a time – try not to exceed the edges of your tiles. This will help make sure the area doesn’t get any worse when walked on.

Step 4: Use a Soft Cloth or Sponge

Once all grout lines are complete, use a soft cloth or sponge to wipe away the remaining mortar from both surfaces of each tile until they look clean again. If there’s still some residue left then try scrubbing with white vinegar on your old toothbrush – this should do the trick.

Step 5: Apply a New Sealant

Apply a new sealant to all areas and let it dry overnight, then apply more over the top in a different color (or clear) to keep everything looking fresh and clean. This is especially great during winter when snow is tracked inside on shoes that are muddy from outside.

Apply the sealant to your floor in one thin coat using a paint roller, making sure you get all of it down with no drips. You don’t want any goopy parts on your floor.

Apply the sealant to the surface of your tile floor in sections, allowing time for each section to dry before moving on to the next one.

Use a clean sponge or cloth (a microfiber cloth works best) to wipe up those drips before they dry. Once dried, these will turn into horrible stains that are difficult to remove later if not cleaned off straight away.

Step 6: Change the Color

If your tiles are all the same shade, it’s perfect to change things up with a new sealant in the opposite color.

You can also do this if you’re tired of some areas looking brighter than others after years of wear and tear (especially during winter when snow is tracked inside on shoes that are muddy from outside).

Sealants come in shades like light gray, brown, dark green, and any other colors you might want. You can also seal and paint your tiles if they’re looking worn from years of wear.

Step 7: Maintenance

Seal your tile floors at least once per year during drier months to ensure that the grout stays sealed and water-resistant.

You might want to do this every few years instead of annually depending on how quickly things start wearing down (or if pets have been inside).


If you’ve read this article and are looking to seal grout on your tile floors, then this handy guide should help. We hope that these tips will be useful in your next tile-related project!