How to Regrout Tiles

STEP 1

Remove the old grout
Use a toothed carbide grit-edge cutting blade to remove loose grout. The angled offset handle lets you apply heavy pressure as the blade is scraped over the gaps. Vacuum out the dust then wash the surface with a solution of water and white vinegar.

STEP 2

Regrout the tiles
Mix the new grout to the consistency of toothpaste. Sweep a rubber float or squeegee diagonally across the tiles to push grout into the gaps. Leave it to set for 30 minutes then use a damp sponge and clean water to wipe away the excess.

STEP 3

Seal the grout
Leave the grout to cure for two days. Apply a sealer with a small paintbrush, using a rag to wipe edges of the tiles clean as you go.
TIP: The sealer prevents water, dirt and mould from penetrating and staining the grout.