How to Repair a Leaking Tile Shower

Written by jennifer brown
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How to Repair a Leaking Tile Shower
No more leaky shower (shower image by Dragan Trifunovic from

If you've ever had a leaky tile shower, you're well aware of the agida created by potential repair costs. One possible fix is a shower pan---a waterproof pan placed beneath the concrete or tile base of the shower to prevent it from leaking. The only problem is that it can run you hundreds of dollars. There's a cheaper solution, one that will only cost around £16. Al Carrell, aka the Super Handyman, says this method "works 99 out of 100 times," so it's definitely worth a shot.

Skill level:

Things you need

  • Muriatic acid
  • Water
  • Plastic bucket
  • Dish gloves
  • Shower tile grout
  • Grout spreader
  • Clear masonry sealer
  • Paint brush
  • Fan (optional)

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    Repairing Your Leaky Tile Shower

  1. 1

    Mix 1 part muriatic acid to 4 to 5 parts water in you plastic bucket. Make sure it's thoroughly blended.

  2. 2

    Scrub down the area in your shower that is leaking with the muriatic acid/water mixture. Be sure to wear protective dish gloves for safety.

  3. 3

    Rinse away the muriatic acid/water mixture with water. Dispose of this mixture down the drain and keep the muriatic acid out of children's reach. Before moving on to the next step, the shower must be completely dry.

  4. 4

    Replace any grout in the shower that was eaten away by the muriatic acid. Apply the shower grout with your grout applicator, which can be a flat butter knife or putty knife. Make sure the new grout is level with the old grout, and the top of the grout is smooth and even. Wipe away any excess grout with a paper towel or rag. Allow the grout to dry completely before moving on to the next step. This could take as long as a week. To speed up the process, point a fan at the hardening grout.

  5. 5

    Paint two coats of clear masonry sealer onto the leaky spots in your shower. Make sure the first coat is completely dry before applying the second coat. Wait several days to a week before using the shower again to make sure you don't wash away the clear masonry sealer. Avoid applying the clear masonry sealer in high humidity, as it greatly lengthens the drying time.

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