Fiberglass Tub Crack Repair & Structural Support
Cracked fiberglass tubs and shower floors often need more than a surface patch. We repair the damaged fiberglass and, when needed, build structural support underneath the damaged area to reduce flexing and strengthen the repair before refinishing the surface.
Fiberglass tubs and shower floors can crack from movement, insufficient support underneath, impact, age, or previous damage. When the floor flexes under weight, simply repairing the visible crack may not address the underlying movement.
That’s why we evaluate the damaged area and determine whether structural support is needed before completing the fiberglass repair.
Our Fiberglass Crack Repair Process
Crack & Damage
We inspect the damaged fiberglass and determine the extent of the crack and surrounding weakness.
Damaged Area Opened
The damaged section is opened and prepared so the repair can properly bond to sound material.
Why Fiberglass Tub & Shower Floors Crack
Support & Reinforcement
When needed, structural support is built underneath the damaged tub or shower floor to reduce flexing and strengthen the repair area.
Fiberglass Rebuilt & Reinforced
The damaged fiberglass is rebuilt and reinforced to restore the shape and strength of the repair area.
Finished & Reglazed
The repaired area is prepared and refinished to create a clean, finished appearance that blends with the surrounding surface.
Why Structural Support Matters
A fiberglass repair is only as good as the surface supporting it. If the tub floor continues to flex after the crack is repaired, that movement can place new stress on the repaired area.
Adding support underneath when needed helps stabilize the floor so the fiberglass repair is not continually being flexed during normal use.
Fiberglass Crack Repair & Structural Support FAQs
1. Can a cracked fiberglass tub or shower be repaired?
Yes. Many cracks in fiberglass tubs and shower floors can be repaired, depending on the location, extent of the damage, and condition of the surrounding fiberglass.​
2. Why do fiberglass tub and shower floors crack?
Cracks can develop from flexing, insufficient support underneath, impact, age, or previous damage. If the floor continues to move under weight, repairing only the visible crack may not solve the underlying problem.
3. What is structural support underneath a fiberglass tub or shower?
When needed, additional support is installed beneath the damaged area to help stabilize the floor, reduce flexing, and strengthen the repair before the fiberglass surface is rebuilt and refinished.​
4. Will adding support help prevent the crack from coming back?
Reducing movement underneath the damaged area can help protect the repair from repeated stress. The condition of each tub or shower is different, so the damaged area should be evaluated before determining the appropriate repair.
5. Can the repaired area be refinished so it blends with the surrounding surface?
Yes. After the structural and fiberglass repairs are completed, the repaired area can be prepared and refinished to create a clean appearance that blends with the surrounding surface.​
6. How do I know if my fiberglass tub needs structural support?
Signs such as noticeable flexing, movement underfoot, recurring cracks, or weakness around the damaged area may indicate that additional support is needed. We evaluate the area before completing the repair.
Why Choose Excellence Reglazing
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