When grout gets old, it often begins to chip, crack or become discolored. This can make the entire tiled surface look unappealing. Furthermore, when grout begins to chip and crack, it can leave an opening for moisture to seep behind the tiles. Old grout needs to be removed and regrouted. Repair old grout sooner rather than later to preserve the tile and keep the surface looking neat and clean.
Things You'll Need
- Grout saw
- Vacuum cleaner
- Small bucket
- Plastic putty knife
- Rubber grout float
Remove the old grout with a grout saw. Run the saw back and forth over the grout line until all of the old grout is broken up. Use a hammer and chisel to lightly tap out any remaining grout along the edges.
Vacuum out the tile joints to remove all of the dust and broken-up grout. Wipe out the joint with a dry towel to remove any remaining debris.
Mix the grout in a small bucket according to the package instructions. Only mix a small batch of grout at one time so it doesn't harden before you can use it. Ideally, the grout should be the consistency of peanut butter when spreading it.
Dip a plastic putty knife into the bucket to scoop out the grout. Force the grout down into the grout joint.
Run a rubber grout float back and forth over the joint. Apply pressure to ensure the grout gets packed into the joints. Scrape excess grout from the tile with the grout float.
Run a damp sponge diagonally over the grout lines to smooth out the grout. Only make one pass over each section with the sponge. Rinse and wring out the sponge after each pass.
Wipe excess grout off the tiled surface with the damp sponge, then a dry rag. Do this carefully so you don't disturb the grout lines.
Allow the grout to dry according to the manufacturer's instructions. This generally takes four to six hours.
Tips & Warnings
- Work in small sections when applying grout. The instructions listed above are for grouting a 2-square foot section or smaller. Working in larger sections may cause the grout to harden before it can be properly applied.
- You can buy a grout saw for less than $10 at most home improvement and hardware stores. Use caution with the grout saw, hammer and chisel so you don't damage the surrounding tile.
- You can repair only a section of old grout if the rest of the grout is in good shape. Take a chipped off piece of the old grout to a store where grout is sold and they can help you match the appropriate color.
- Photo Credit Boden image by Milosz Bartoszczuk from Fotolia.com
How to Re-grout and Reseal Ceramic Tile
Is the grout on your tile floor, countertop or backsplash badly stained, cracked or missing altogether? You can have it looking like...
How to Repair Cracked Tile
Most home-repair professionals advise homeowners to replace cracked tiles. But not everyone has extra tiles sitting around. And even if they do,...
How to Repair Cracks in Tile Grout
Cracks in the grout lines of ceramic tile not only are unsightly but also can allow water and moisture to seep into...
How to Fix Discolored Bathroom Tile Grout
Discolored bathroom grout can occur for many reasons. Grout can lose its pigment over time, so dark colors can lighten and show...
How to Repair Grout in Brick
Grout is used to hold and seal bricks together, so proper grout maintenance is essential to a brick structure's longevity. Over time,...
How to Keep Grout From Cracking
There are two primary reasons that grout cracks. One reason is that you are using the wrong type of grout for the...
How to Replace Cracked Tile Grout in a Tub or Shower
Attend to cracked or crumbling grout joints as soon as they appear. Water getting behind the tiles can ruin the tile job...
How to Repair Old Grout
Old grout that is flaking or discolored can be repaired after removing the excess material. Repair your grout with the help of...