An Easy Guide to Caulking a Shower

filling silicone for sealing
Table of Contents

If you’ve ever taken a closer look at your shower, you’ll notice strips of ‘rubber’ lined on the edges and seams. This substance is caulk, and is important in keeping water where it belongs – in the shower and not out of it. Over time, the caulk will strip away and when it does, it needs to be replaced. This article will show you how to start caulking a shower – let’s get to it!


Why and When to Caulk

Caulk is not only important in keeping water inside the shower but it also prevents underlying wall systems from getting wet and soaked. As we mentioned, caulk deteriorates over time due to water damage and needs to be replaced. An important detail is to ensure that all old caulk is removed before applying new caulk. Never apply new caulk over old ones!

You also need to make sure the room temperature is between 4 and 26 degrees celsius when applying caulk in order for it to properly set. It’s also a good idea to clean your shower before you start caulking.

Tools You’ll Need

  • Caulking tool
  • Putty knife
  • Vacuum
  • Scissors
  • Goggles and mask
  • Gloves
  • Sponges
  • Shower caulk
  • Denatured alcohol
  • Bleach
  • Painter’s tape



Step 1: Remove Old Caulk

Using the caulking tool, remove as much of the old caulk as possible. Be careful not to chip or scratch surrounding tiles or glass when doing so.

Step 2: Vacuum Debris

Use the vacuum to clean up the area, ensuring that it is free of debris and leftover old caulk.

Step 3: Clean Surface

Apply denatured alcohol onto your sponges and wipe down all areas that previously had caulk applied. Once done, use a secondary mixture of bleach and water to further clean the area. Wait an hour or two for the area to completely dry.

Step 4: Tape Seams Down

Run parallel strips 1cm apart of painter’s tape between each seam that will have caulk applied. Firmly press down once done.

Step 5: Cut Caulk Tube

Cut the end of your caulk tube using scissors. Don’t cut off too much – just enough for a bead of caulk to come out.

Step 6: Add Caulk

Carefully and slowly squeeze the caulk gun to apply caulk to the seam. Move across the seam at a slow and steady pace. Apply enough so that it completely penetrates and covers the seam.

Step 7: Tool Caulk & Remove Tape

Run a wet finger across the caulk to remove excess. Once done, remove tape and leave for a couple of days to dry before using the shower.


Caulking a Shower Doesn’t Have to be Difficult

With this guide, you’ll have a newly caulked shower in no time! For more helpful articles like this ‘Caulking a Shower’ guide, head on over to MyHomeware today!

Comments are closed.

Don’t forget to share

Product recommendations

Subscribe to get the more interior inspirations. latest trends of renovation and more!