Take a grout saw and remove all of the existing grout from in between the tiles.
How to fix grout between floor tiles.
A grout saw is a small handheld blade that fits between the gaps in tile.
This material can become damaged over time and it will likely require a bit of repair to restore it to its original state.
1 measure the width of the grout lines on your tile floor.
Use a grout saw to remove the top 1 8 inch 0 32 cm of damaged grout.
If the space is larger than 1 8 of an inch use a sanded grout.
How to touch up grout.
In short sanded grout should be used if the space between tiles is more than 1 8 of an inch but not on metal glass or marble tiles and unsanded grout should be used if the width is less than.
At most tile specialty shops you can get or order sanded caulk most floor grouts are sanded that will closely match your existing grout color.
Measure the space between the tiles.
Grout is available as sanded or unsanded.
Once the old grout is removed use the grout float to fill the empty joint.
Grout is a common material used with tile and it keeps the spaces between each tile looking uniform.
Step 6 install grout.
Make sure not to apply any pressure to the tile so you don t break it while you are doing this.
If you need to repair grout numerous times on any one floor ask an engineer to look into the underlying cause of the problem.
If the width is 1 8 of an inch or smaller use an unsanded grout.
If you re dealing with damaged grout there are some easy ways to fix it yourself.
Tile can last for generations but the grout lines sometimes need attention.
This fix is only practical for interior tile floors and when the gaps between the tiles are 1 4 in.