How to Caulk Between a Vanity Top & a Wall


Leaving a gap between a bathroom vanity top and the adjacent wall can create an eyesore. Small items as well as water, dirt and dust can fall behind the vanity and become difficult to retrieve later. Add a small bead of caulk to the area for a professional and finished look.

Things You'll Need

  • All-purpose cleaner
  • Sponge
  • Caulk
  • Caulk gun
  • Liquid soap
  • Paper towel or rag
  • Clean the surface where the caulk will be applied with an all-purpose cleaner. Wipe with a damp sponge to remove dust and dirt. Dry with a paper towel.

  • Choose a caulk that matches the vanity or the wall. Look for caulk made especially for moist, wet areas such as bathrooms and kitchens. Use either a caulk gun or caulk in a tube, which can be squeezed out by hand.

  • Place the caulk into the caulk gun and remove the tip, or simply cut off the tip of the caulking tube with a sharp knife or blade. Start at the edge of the vanity or at a corner to keep the bead of caulk even. Gently squeeze the caulk into the gap between the vanity and wall. Apply with slow, even pressure. Don't rush the process. Remember to caulk the entire area without stopping to keep the bead uniform and even.

  • Add a small amount of liquid soap to the tip of your pointer finger. Slide the finger along the fresh caulk line to smooth out the bead between the wall and vanity. Remember to level out entire lengths and widths of the vanity starting at corners and edges---don't stop until the entire side is smoothed.

  • Use a wet rag to clean up any accidental bumps and smears. Take your time for a professional-looking finish. Allow the caulk to dry---most caulk takes about one day to become completely dry to touch.

Tips & Warnings

  • Wear latex gloves to protect hands from caulk.

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