Seal tile grout in showers and floors

Short answer

Apply penetrating grout sealer to clean, dry grout lines once a year to block moisture, stains, and mold.

Priority
Low
Difficulty
DIY
Time
45 min
How often
Once a year

Why It Matters

Unsealed grout absorbs water, stains, and grows mold. A fresh seal keeps showers and tile floors clean and protected.

Tools

  • Small brush or applicator bottle
  • Cloth

Materials

  • Penetrating grout sealer
  • Grout cleaner

How to Do It

  1. Clean the grout lines thoroughly and let them dry completely before sealing.
  2. Apply penetrating grout sealer directly to the grout lines using a small brush or applicator bottle.
  3. Wipe any excess sealer off the tile surface before it dries on the tile face.
  4. Let the sealer cure for the time specified on the product label before using the shower or wetting the floor.

Part Of

Interior

Last updated

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