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DIY guideTile and grout

Clean and seal grout

Scrub the grout clean, let it dry right through, brush on a penetrating sealer, and wipe off the haze before it dries.

  • 1 hr to 2 hr
  • 8 steps
  • Every step animated
Clean and seal grout: the animation’s first picture

8 steps

Tap a step to watch it again.

  1. Look along every grout line. Cracked, crumbling or missing grout needs a tile pro before anything is sealed.

  2. Scrub each line with a stiff brush and grout cleaner, or warm water with a little dish soap.

    Never mix cleaners. Run the fan or open a window.
  3. Rinse with clean water and wipe the tiles dry with a towel.

  4. Leave it as long as the sealer's label says, often a full day, with the shower off and the fan running.

  5. Brush a thin coat of penetrating grout sealer along each line with a small brush.

    Keep the room aired while you work.
  6. Wipe sealer off the tile faces within a few minutes, before it dries to a cloudy film.

  7. Keep water off it for as long as the label says. Then sprinkle on a little water: it should bead on the grout, not soak in.

  8. Cracked or crumbling grout, a loose or hollow-sounding tile, or a soft wall behind it: ask Handyman for a tile pro.

What you need

  • A stiff grout brush
  • Grout cleaner, or dish soap and warm water
  • Penetrating grout sealer and a small brush
  • Old towels and a bucket of clean water

Call a pro if

  • The grout is cracked, crumbling or missing
  • A tile is loose, cracked or sounds hollow when tapped
  • The wall behind the tile feels soft

Handyman says: Tiles loose? I'll find a tile pro.

Free for every home. Handyman asks a few questions, then books a pro it trusts.

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