Recaulk a Bathtub Tutorial

7 Materials
1 Hour

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Are the caulk lines on your bathtub cracked, peeling or discolored? It may be time for you to recaulk! Learn all of the in’s and out’s of this simple DIY in this tutorial for how to recaulk a bathtub.

If you are dealing with an old house or maybe fixing someone else’s mistakes, there comes a time when you may need to recaulk your bathtub.


  • discolored
  • cracking
  • peeling
  • have gaps


1) Remove old caulking or grout. Use a utility knife to remove any old caulking/grout that maybe present between the bathtub and flooring.

2)After removing old caulking, throughly clean the area with rubbing alcohol and a scour pad.

3) Wait until everything is perfectly dry. 

4) Once everything is perfectly dry and clean, you can get out the painter’s tape and put down a straight line along the edge of your flooring.

5) Open your tube of caulking at a 45 degree angle with the utility knife. Try to keep the opening as small as you can. Next, you can put the tube of caulk into your caulk gun.

6) Apply caulk. Holding the caulking gun at a 45 degree angle, run an even bead along the ga in between the tape.

7) Remove the painter's tape, quickly. 

8) Smooth caulk again. Run your finger along the caulk bead again to push down and seal any caulking that may have lifted when you removed the tape.

9) Clean up any caulking that may have spread and all your tools and equipment and let your caulking dry.

You are done!!!! Be sure to allow the caulking to dry according to the specifications are on the tube. 

If you love these simple how to recaulk a bathtub tutorial and want to learn more like it, be sure to check out all of my DIY tutorials in the archives here!

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Have a question about this project?

2 questions
  • Charlotte
    on Nov 28, 2019

    Related to this project, how do I recaulk the inside of the tub?

    • Chris
      on Jan 24, 2020

      Please dont forget the water. My husband did and it was so cracked and ugly we had to redo the whole thing.

  • Juanita Dinorah Gomez
    on Dec 6, 2019

    How renew a old metal bathtub

Join the conversation

1 comment
  • Michelle
    on Nov 28, 2019

    Thank you so much for the caulking tip! I will always use painter's tape on future caulking jobs.

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