When you spot a crack in your bathtub—especially a big one—it’s easy to assume the worst. Most homeowners worry they’ll need to rip out the entire tub and spend thousands on a replacement. But here’s the good news: you can fix most large cracks and holes yourself with a professional-grade repair kit designed to handle serious damage.
This article breaks down how to fix a cracked tub, what kind of damage requires which kit, and why DIY Tub Repair Store kits are trusted by homeowners and property managers across the country.
What Is Considered a "Large" Tub Crack?
If the damage to your tub is longer than a few inches, spans a significant surface area, or penetrates through the tub wall, it’s more than just cosmetic—it’s structural or semi-structural. You’ll need a solution that reinforces and seals the area, not just covers it up.
You’re likely dealing with a Level 2 or Level 3 issue, depending on where the crack is located:
- Wall Damage? Choose Level 2 – Large Wall Repair Kit
- Floor Crack or Flexing? Choose Level 3 – Floor Crack Repair Kit
Why Tub Crack Repair Needs More Than Just a Patch
Box-store kits often promise a quick fix, but they fall short in three major areas:
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No Structural Support: Without reinforcing foam underneath, the crack will likely reopen.
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Poor Durability: just a topical patch over the top will not only lead to the crack reopening but will also cause the crack to get larger as it is stepped on again and again.
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Bad Color Matching: a blob of epoxy over your crack that does not match your tub is not going to hold and will not save the value of your home.
DIY Tub Repair Store kits are designed to eliminate those problems. Our Level 2 and Level 3 kits include professional-grade materials and step-by-step videos to help you get the job done right.
Which Tub Crack Repair Kit Do You Need?
Level 2 – Large Wall Crack Repair Kit
Best for: Vertical wall cracks, holes up to softball-size, long surface cracks
Includes:
- Putty and hardener
- Mesh tape (for holes)
- Primer and resins
- Color-matching syste
- Preval spray system
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Step-by-step instructions and video guide
Level 3 – Floor Crack Repair Kit
Best for: Tub floors with cracks, flexing, soft spots, or structural weakness
Includes:
- Expanding foam for structural support
- Bonding resin and putty
- Primer and color-matched topcoat
- Sandpaper and applicators
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Step-by-step instructions and video guide
What About Small Chips and Hairline Cracks?
If your tub just has minor cosmetic damage—like a surface chip or hairline crack that doesn’t penetrate deep—you might only need our Level 1 Chip Repair Kit. This is ideal for small fixes that don’t involve structural support.
Final Thoughts: Skip the $10,000 Replacement
You don’t need to tear out your entire bathtub to fix a crack. Whether it’s a structural floor issue or a large wall crack, DIY Tub Repair Store has a kit that will save you time, money, and stress—with results that are nearly invisible when done correctly.
Have questions? Our support team is ready to help you find the right kit.