Permanent solution for broken bathtub floor

Over time, many fiberglass and acrylic bathtubs develop soft spots, cracks, or flexing in the bottom of the tub. This usually happens because the original support underneath the tub has weakened, allowing the floor to move every time someone stands on it. If ignored, these issues can lead to leaks, mold growth, and further structural damage.

At East Coast Refinishing, we use a professional multi-step process designed to restore strength, stability, and safety to your bathtub without replacing the entire unit. Our bathtub floor repair system provides a long-lasting and cost-effective solution that reinforces the damaged area and prevents future problems.

Our Bathtub Floor Repair Process

1. Deep Cleaning & Surface Preparation

Before any repair work begins, we thoroughly clean and degrease the bottom of the tub. This ensures that all contaminants like soap scum, dirt, oils, and residue are removed. A clean surface makes sure the repair materials bond correctly and last for years.

2. Structural Support & Foam Injection (If Needed)

If the bathtub floor is soft or flexing, we inject a specialized expanding foam underneath the tub floor. This foam fills empty voids that were never properly supported or that have broken down over time.

What this does:

Eliminates movement and flexing

Restores solid support under the tub

Prevents future cracking

Makes the new repair much stronger and longer-lasting

This step reinforces the entire base of the tub before any fiberglass or inlay work is done.

3. Fiberglass Strengthening & Crack Repair

If cracks or damage are present, we rebuild the weakened area with a professional-grade fiberglass repair system. This involves:

Light surface sanding

Applying reinforced fiberglass resin

Smoothing and shaping the repair

This seals the damaged area and gives the tub floor a strong foundation before the inlay is installed.

4. Installation of a Custom Bathtub Inlay

The final stage is installing a custom-fit bathtub inlay — a solid, waterproof floor piece designed specifically for the bottom of your tub.

The inlay provides:

A brand-new tub floor surface

Permanent structural reinforcement

A slip-resistant texture for added safety

A clean, factory-like appearance

Once bonded with our industrial adhesive system, the inlay becomes a permanent part of the tub. It will not flex, crack, or separate from the tub floor.

Why Choose a Bathtub Inlay Instead of Replacing the Tub?

Avoids demolition and high labor costs

No plumbing modifications needed

Strengthens the tub better than original factory support

Fast turnaround — often completed same day

Prevents future leaks and structural issues

For homeowners, hotels, and property managers, this repair method is the most reliable long-term solution for damaged tub floors.