How long do fiberglass tubs last?

Author: Gracie Senger  |  Last update: Tuesday, September 16, 2025

A fiberglass bathtub can last anywhere from 10 up to 15 years or longer. They are an affordable option and easy to install. You'll pay less for these types of tubs because the materials used to make them are thinner, but this makes them more susceptible to leaking and cracking as time goes by.

When should I replace my fiberglass tub?

Typical lifespan of a fiberglass tub is 10-15 years, so you're running close to that break point. I'd say that if you've already got everything torn out and you aren't cash strapped, replace the thing.

What are the cons of a fiberglass bathtub?

Cons of Fiberglass Bathtubs

Fiberglass is a thin material that actually wears down with frequent use. It does not retain heat well and is more prone to fading, staining, cracking, and scratching.

What is the life expectancy of a fiberglass bathtub?

Generally speaking, a fiberglass tub or fiberglass shower has an average lifespan of about 15 years, depending on how well you maintain it. If you use harsh cleaners or are careless about dropping things in your fiberglass tub or shower, it probably will have a lifespan closer to 10 years instead.

Is it worth replacing a fiberglass tub?

At the end of the day, why you should replace your fiberglass tub or shower revolves around prioritizing your comfort, safety, and long-term satisfaction. A worn-out fiberglass fixture is more than just an eyesore—it can also pose potential health and safety risks.

HOW TO FIX LARGE HOLE IN FIBERGLASS TUB

How much does it cost to replace a fiberglass tub with a shower?

Tub to shower conversion costs homeowners an average of $3,000 but typically ranges from $1,200–$8,000. See which factors will impact your total cost.

Is it normal for a fiberglass tub to crack?

Cracks usually mean that more water and moisture will tract into the inside of your bathtub, causing the integrity to weaken more and more overtime, until eventually the entire bathtub cracks in half. Generally, cracking is commonplace in fiberglass bathtubs.

What type of bathtub lasts the longest?

Cast iron is the most durable and longest-lasting type of bathtub you can buy, and vintage cast iron tubs are very popular. However, if a cast iron tub is too cumbersome to get to a second-floor bathroom in your home, an enameled steel tub is the next best thing.

How do you rejuvenate a fiberglass tub?

Fiberglass tubs can be cleaned with baking soda, water, and distilled white vinegar, says Dills.
  1. Wet the bathtub with warm water.
  2. In a spray bottle, mix equal parts white distilled vinegar and warm water.
  3. Spray the bathtub with the mixture.
  4. Sprinkle baking soda on your tub and let it sit for about 10 minutes.

Can fiberglass tubs grow mold?

Fiberglass may be more susceptible to scratching and cracking than acrylic, increasing the risk of mold growth over time. Additionally, fiberglass is a porous material, potentially harboring mold and mildew if not properly maintained.

What should you not use on a fiberglass tub?

A: The nice thing about fiberglass tubs and showers is that no matter how dirty they become, they are fairly easy to clean. Be careful not to use any abrasives on the fiberglass, such as scouring pads, steel wool or gritty cleaning solutions. “Soft Scrub” may be used sparingly on soap scum buildup.

Is it worth refinishing a fiberglass bathtub?

Yes, Depending on Your Tub. Refinishing a bathtub is more cost-effective than replacing it. The average cost to refinish a bathtub is $490, compared to $5,700 to replace it. Refinishing can fix minor cracks, scratches, and discoloration.

How to tell if a tub is acrylic or fiberglass?

Push Test: Gently push on the sides of the tub. If it feels flexible and has some give, it is likely fiberglass. Acrylic tubs are more rigid. Magnet Test: If you're still unsure, use a magnet.

How much does it cost to repair a fiberglass tub?

Most bathtub chip repair will cost $195 to $300 and $25 per chip after that using epoxy products, and matching a custom tub color costs an additional $25. If your bathtub has extensive damage beyond small chips, scuffs, and scratches, you may be considering a full reglazing.

Can Bathfitters go over a fiberglass tub?

Bath Fitter has a system to replace your worn out or cracked fiberglass unit. We manufacture a custom acrylic unit to replace it to custom fit the same space as your old unit.

Should you wax a fiberglass tub?

You may need to scrub stubborn grime vigorously. Rinse and wipe clean with a microfiber cloth. Regular waxing with fiberglass boat wax can protect your tub's surface so that it does not fade as quickly.

Is magic eraser safe on fiberglass tubs?

Rinse the fiberglass bathtub with the help of cold water and wipe away the excess water with the help of a paper towel. Now you can use a magic eraser to wipe away all the stains and dirt once again.

How do you make an old fiberglass tub look new?

Baking Soda and Dish Soap Paste: Create a paste using equal parts baking soda and a mild dish soap. Apply the paste to the stained areas, gently scrub with a soft sponge, and rinse the tub This method works well for most surfaces, including acrylic, fiberglass, and porcelain, without scratching the finish.

What is the best bathtub for longevity?

Sturdy and non-porous materials like stone resin and enamel-coated cast iron are on the high end of the price scale. These materials are highly durable, easy to clean, and retain heat for a long time. Cast iron bathtubs are the most durable and are made by pouring molten iron into a shaped mold.

How often should you replace a bathtub?

The average bath needs replacement every 10 to 30 years, with porcelain-enamel products offering the longest lifespan. Towards the end of that period, gaps and cracks will appear, ultimately leading to leaks. Water is one of nature's most destructive elements, so even a subtle leak needs immediate attention.

How to clean a fiberglass bathtub?

Cleaning a Fiberglass Bathtub

Combine two parts vinegar and one part water in a spray bottle and spray the entire bathtub. Allow this soaking solution to sit in the tub for 15 to 20 minutes. Use a cloth or sponge to remove the dissolved dirt and soap scum from the tub.

How much is it to replace a tub?

In California, you can expect to pay between $6000-8000 for a bathtub replacement job. In New York City, your starting price is around $7000.

Can a Fibreglass bath be repaired?

Bath Repairs

Whatever the damage and whatever the surface: enamel, steel, plastic, or fibreglass. We've got the skills and expertise to make your bath right again. We can fix any material and our professional finishers will ensure the exact colour and texture is matched to make the reconstruction blend in perfectly.

Why would a fiberglass tub bubble?

Fiberglass blisters occur because water passes through the gelcoat. Water soluble chemicals inside the laminate exert an osmotic pull on water outside, and some water molecules find a way through the gelcoat. As more water is attracted into the enclosed space, internal pressure builds.

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