How to Tile a Bay Windowsill

Written by sal marco
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How to Tile a Bay Windowsill
Tiling adds an atypical decorative touch to a windowsill. (Jupiterimages/ Images)

Installing tile on a bay windowsill makes the window stand out as a warm spot for coffee, or a centrepiece with personality. Creating a design theme allows the window to become a focal point in the home rather than blend in with the surroundings. Ceramic tiles are available in many patterns, colours, styles, finishes and sizes. Decorating possibilities are virtuously limitless. Ceramic tiles are easy to maintain and durable, making them a good choice for a decorative windowsill.

Skill level:
Moderately Easy

Things you need

  • Paper
  • Wet saw, tile cutter or tile nippers
  • Fine-grit sandpaper
  • Vacuum
  • Epoxy-based tile adhesive
  • Trowel
  • Grout
  • Bucket
  • Rubber grout float

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  1. 1

    Lay a large sheet of paper over the windowsill. Trace around the edges of the windowsill to create a pattern.

  2. 2

    Lay the pattern on the floor and fit the tiles into the pattern. Use tile spacers when dry fitting tiles onto the pattern. Use a pencil to mark tiles that require cutting.

  3. 3

    Cut the tiles with a wet saw, tile cutter or tile nipper as needed.

  4. 4

    Sand the surface of the windowsill with fine-grit sandpaper to remove existing paint or finishes. Vacuum the sanding dust off the windowsill.

  5. 5

    Apply a coat of epoxy-based tile adhesive to the windowsill with a small trowel. Drag the notched edge of the trowel through the adhesive to create ridges.

  6. 6

    Transfer the tiles from the pattern onto the windowsill. Press the tiles into the adhesive firmly. Place tile spacers at the edges of each tile to maintain a uniform distance between the tiles.

  7. 7

    Allow the adhesive to dry overnight. Remove the spacers.

  8. 8

    Mix grout with water in a bucket according to the manufacturer's directions.

  9. 9

    Apply grout with a rubber grout float, pressing the grout deeply in between each tile. Immediately wipe excess grout off the tile surface with a damp sponge.

Tips and warnings

  • Wear safety glasses and gloves when cutting tile.
  • Keep a bucket of water nearby to rinse the excess grout off the sponge.

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