Bathroom Basics

How to Recaulk Around a Bathtub

Fresh tub caulk is mostly a surface-preparation job. New silicone will not reliably solve anything if loose old caulk, soap residue, or trapped moisture is left underneath.

Difficulty2/5
Typical time1–2 hours plus curing time
Typical cost$10–$35
Beginner-friendly?Yes

Tools you will probably need

  • plastic scraper or caulk-removal tool
  • utility knife used carefully
  • caulk gun if needed

Materials

  • bathroom-rated silicone caulk
  • isopropyl alcohol or manufacturer-recommended cleaner
  • paper towels

Project steps

  1. Remove the old bead completely enough to expose clean, solid surfaces.
  2. Clean the joint and let it dry thoroughly.
  3. Apply a steady bead of bathroom-rated caulk along the joint.
  4. Tool the bead according to the product directions and clean excess before it skins over.
  5. Keep the area dry for the full cure time listed on the caulk.

Common mistakes

  • Caulking over moldy or loose old caulk
  • Using the tub or shower before the caulk cures
  • Trying to fix a water-damaged wall with caulk alone

When to call someone

Call a pro if the wall is soft, tiles are loose, water damage extends behind the surround, or the joint keeps failing because the tub or wall is moving.

Not sure whether this is a good first project for you?
Run it through the DIY Project Planner.

Project costs and times are rough planning estimates. Product instructions, local codes, home construction, and actual conditions take priority.